Saturday, June 26, 2010

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MIndGenius Version 3.6 now with File convertor and Gantt improvements

FYI

On Monday June 28th, MindGenius will release Version 3.6 which will add some new features to the Gantt View as well as the ability to open MindManager (Version 7 and above) files and OPML formatted files into MindGenius. So if you are a MindGenius 3 users I would suggest that you go over to the MindGenius website and download the free upgrade.

Version 3.6 now with file convertor and Gantt improvements


We are pleased to announce we are continuing the major development program we started with the release of Version 3 last year. Version 3.6, one of our regular maintenance releases, will be available from Monday 28th June and is free to all MindGenius Version 3 customers.

As well as routine maintenance work, MindGenius Version 3.6 includes functional updates to the Gantt View and the addition of a file convertor which allows users to import data from MindManager and OPML formats.

The Gantt view has been extremely well
received since its release in March. User feedback on the Gantt View regarding the timeline being fixed units has been addressed with the addition of the ability to set the timeline scale to an appropriate unit of time such as Quarters, Months, Weeks, Days and Hours, as well as a zoom facility to scale the Gantt view to match your overall project duration.

In response to the number of organisations participating in a wholesale deployment of MindGenius to all desktops, we have developed the ability to be able to import maps from Mindjet’s MindManager. Any legacy maps held in the MindManager format can be seamlessly brought across into MindGenius and enable the entire organisation to move forward with MindGenius as the single map format, thus making the sharing of maps considerably easier.


OPML (Outline Processor Markup Language) is an XML format for defining hierarchical data and is suitable for many different types of data lists and is used mainly to exchange data lists on the web. It is also used as a file format for certain iPhone/iPad applications such as MindNode & iThoughts.

Simply select File \ Open to import any of these file types into MindGenius.

This Import functionality has the ability to be extended to import from other sources and suggestions from our customers are very welcome.

Derek Jack, Company Director for MindGenius said:

“Fundamentally, MindGenius is a client driven business. Each release reflects the priorities placed upon us by our client feedback. We appear to have struck a chord with our recent addition of the GANTT functionality within the map. Many customers are enjoying the seamless integration between unstructured data gathering and planning, and then distilling this data into a fully functioning GANTT view. This latest 3.6 release is a reflection of the scale of adoption we have witnessed and the consistent feedback around key improvements we can make to this specific feature. We trust you will enjoy the new capabilities and openly encourage your continued feedback.”

Saturday, June 19, 2010

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ISTE 2010- PaperShow for Teachers

In about a week's time I will be heading to Mile High City to participate in what I consider to be one of the most exciting educational technology conferences in the United States. I have been fortunate to be able to attend the ISTE conferences over the past couple years and am looking forward to attending ISTE 2010 which is being held in Denver this year. I will be helping out at the PaperShow Booth as they launch PaperShow for Teachers, a new and exciting presentation tool for the classroom. I have been using PaperShow for the last year or so in my classroom and it is exciting to see the product evolve. PaperShow has allowed me the flexibility to go into any classroom and make my lessons more interactive and allows me to capture and share classroom notes almost instantaneously as a PowerPoint or PDF file.

PaperShow for Teachers
, will add a whole new array of tools and set of interactive papers that I know teachers will find a welcome addition to their educational technology classroom toolkit. PaperShow for Teachers will add a wide array of new color palettes that can be used as well as math tools for calculations and the measurement of lines and angles. Teachers will be able to use the Reveal tool, to hide part of the screen which can come in handy for displaying questions and their solutions. So whether you want to use PaperShow for Teachers as a digital flip chart or to annotate your PowerPoint or Keynote presentations you will find PaperShow to be an affordable and easy to use tool to jazz up classroom lessons. If you plan on attending ISTE 2010, stop by and say hello, I will be in the PaperShow Booth # 792. So plan on stopping by Booth #792 and get a chance to see for yourself what all the excitement is about as we launch PaperShow for Teachers.


Friday, June 18, 2010

Keajaiban Telkomsel Flash Flash : Flash Unlimited 125 ribu mencapai kecepatan > 125 KBps

Keajaiban Flash : Flash Unlimited 125 ribu perbulan mencapai kecepatan 125 KBps? apakah anda merasa aneh..? ini saya rasakan sendiri bahkan diluar kota pula. Saat ini ada di daerah Rogojampi, Salah satu kecamatan di Banyuwangi.

Berikut ini adalah kecepatan yang saya dapatkan.

Berapa Kecepatan Download Telkomsel Flash ?, Kecepatan Download Telkomsel Flash, Kecepatan Download Maksimum Telkomsel Flash, Berlangganan Telkomsel Flash Unlimited, Kecepatan Download Dengan Telkomsel Flash, Telkomsel Flash Support HSPA+, LTE Telkomsel Flash
Berapa Kecepatan Download Telkomsel Flash ?, Kecepatan Download Telkomsel Flash, Kecepatan Download Maksimum Telkomsel Flash, Berlangganan Telkomsel Flash Unlimited, Kecepatan Download Dengan Telkomsel Flash, Telkomsel Flash Support HSPA+, LTE Telkomsel FlashBerapa Kecepatan Download Telkomsel Flash ?, Kecepatan Download Telkomsel Flash, Kecepatan Download Maksimum Telkomsel Flash, Berlangganan Telkomsel Flash Unlimited, Kecepatan Download Dengan Telkomsel Flash, Telkomsel Flash Support HSPA+, LTE Telkomsel FlashBerapa Kecepatan Download Telkomsel Flash ?, Kecepatan Download Telkomsel Flash, Kecepatan Download Maksimum Telkomsel Flash, Berlangganan Telkomsel Flash Unlimited, Kecepatan Download Dengan Telkomsel Flash, Telkomsel Flash Support HSPA+, LTE Telkomsel FlashBerapa Kecepatan Download Telkomsel Flash ?, Kecepatan Download Telkomsel Flash, Kecepatan Download Maksimum Telkomsel Flash, Berlangganan Telkomsel Flash Unlimited, Kecepatan Download Dengan Telkomsel Flash, Telkomsel Flash Support HSPA+, LTE Telkomsel Flash

Sehingga Kecepatan yang saya Dapatkan adalah Sebagai Berikut:

Berapa Kecepatan Download Telkomsel Flash ?, Kecepatan Download Telkomsel Flash, Kecepatan Download Maksimum Telkomsel Flash, Berlangganan Telkomsel Flash Unlimited, Kecepatan Download Dengan Telkomsel Flash, Telkomsel Flash Support HSPA+, LTE Telkomsel FlashBerapa Kecepatan Download Telkomsel Flash ?, Kecepatan Download Telkomsel Flash, Kecepatan Download Maksimum Telkomsel Flash, Berlangganan Telkomsel Flash Unlimited, Kecepatan Download Dengan Telkomsel Flash, Telkomsel Flash Support HSPA+, LTE Telkomsel FlashBerapa Kecepatan Download Telkomsel Flash ?, Kecepatan Download Telkomsel Flash, Kecepatan Download Maksimum Telkomsel Flash, Berlangganan Telkomsel Flash Unlimited, Kecepatan Download Dengan Telkomsel Flash, Telkomsel Flash Support HSPA+, LTE Telkomsel Flash

Akankah ini petanda semakin baiknya layanan wireless broadband Indonesia Semoga.

Gambar-gambar diatas nyata dan bukan isu rekayasa seperti Video XXX Artis yang ngetren belakangan ini lho..

Wednesday, June 16, 2010

iThoughtsHD- Mind Mapping for the iPad

Two weeks ago I went out and purchased an Apple iPad to see what all the excitement was about. I have to say it is a very seductive device and one that is hard to put down. I am enamored by its potential as a tool for some of the students that I work with who have writing, reading and organizational difficulties. The iPad is very fast at doing almost anything you want it to do (except play Flash media) and the battery life is really incredible.

Over the last couple of weeks I have investigated and bought many productivity apps to get an idea of how the iPad could be used as complimentary device to all of the other computers in my household. As someone who loves to mind map I quickly came across iThoughtsHD which I had heard so much about. iThoughtsHD is a full featured mind mapping application that runs on the iPad. It did take me a little getting used to the fact that I didn't have a mouse and had to touch the screen to create new nodes but once I got the hang of it-it was easy to use. I quickly created my first mind map in iThoughtsHD and was able to move my ideas around the map and relink them. Adding icons and formatting the nodes was quite intuitive and fast. There are some nice features to allow you to align your ideas to keep the formatting looking clean and your nodes equidistant. I have also used iThoughtsHD with my Bluetooth keyboard which made it even faster for me to create a mind map. While the interface is rather spartan there is a lot of functionality under the hood and you will find getting around iThoughtsHD to be quick and efficient. Within your mind map you can easily attach links as well as insert task completion icons to keep track of tasks as they are completed.

One of my favorite features is being able to send my iThoughtsHD mind maps to the cloud or transfer them to my computer using the WiFi Transfer option. Using the Box.net service it is rather straight forward to save your mind maps to the cloud that you can then access from any computer connected to the internet. iThoughtsHD supports a wide range of exporting features which makes it ideal if you intend to open your mind map with another mind mapping desktop application. iThoughtsHD supports exporting to : MindManager, MindView, NovaMind, iMindmap, xMind, and Freemind. iThoughtsHD also supports the use Task Completion icon and Start and Due dates for tasks on your mind map.

All in all, iThoughtsHD is a formidable mind mapping application for the iPad and works well with your desktop mind mapping applications. If you purchased an iPad and are looking for a top of the line mind mapping app look no further and download iThoughtsHD.

Monday, June 14, 2010

World Cup and Social Media

On the way to the cabin tonight I heard this story twice:
http://www.npr.org/templates/story/story.php?storyId=127840329

Why is that interesting? Because it talks about how the World Cup fever is putting pressure on the social networking sites like Twitter and Facebook, etc.  So why is THAT interesting? Because I've been trying to send a tweet for the past 30 minutes and it's been too busy - exactly what the article said might happen.

Give it a listen.


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A job well done

OK. It's finished. I finally have the entire web saved as bookmarks in my Diigo account. They're all nicely tagged - even if, perhaps, I've got multiple versions of the same tag. (google earth, googleearth, and google_earth) At least all the sites (up to today) are properly bookmarked. There will no doubt be new sites to bookmark tomorrow. (A teacher's work is never done.)

Yes, I'm being facetious, but stay with me here. I've been eagerly and proudly, and even dutifully finding new websites that do one thing or another, and I've been saving them in my Diigo account. That's just what you do, y' know. But, since I don't have a class of students any more, what is the purpose of this collection? Yes, I can now select a tag and see all the sites I've found that fit that tag, but - then what? And, even if I were a teacher, what good is a list like I've made? Not much good at all, I suspect. Yes, I can share this list with other teachers in the workshops that I do, but somehow it feels like an artificial collection. It has no REAL purpose for being.

But, a classroom teacher wouldn't just be finding sites for the site of the find. A classroom teacher would be bookmarking sites that would help to make that teacher more effective. Right?

I don't know. Maybe this wonderful silence that I've been listening to for the past few hours has gotten to me. (I'm at my cabin and the woods are VERY quiet.) But, suddenly I've begun to question why I'm finding the need to collect all these bookmarks.

Do any of you feel this way from time to time?
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Power Markers 2 Released-Powerful Project Management Tool

Last week I had a chance to chat with Nick Dufill the developer of Power Markers 2, a powerful project management add-in for MindManager. Nick has been involved with mind mapping for some time now and is well known in the mind mapping arena. Nickwas kind enough to be interviewed and what follows is our conversation.





Brian S. Friedlander: Can you tell us a little bit about your company and how you got started in using mind mapping?

Nick Dufill: I have been using mind mapping software since about 1996, and have
been working with Mindjet and MindManager since 1997. I began by providing product support in the UK, and worked on the MindManager X5
product itself, and have developed many dozens of content-based and software-based extensions for MindManager. I cofounded MindManuals.com and Gyronx, and was also the technical editor for
Wiley's "MindManager for Dummies". Currently I am helping MindManager customers with specialised applications of the software, with a focus on business use and information management. I think there is a lot of unexplored potential in the professional business uses of "mind mapping" software, much more than is being used today. Many maps have a short lifetime, and this limits their value, both actual and perceived - they can become the electronic equivalent of the tear-off flip chart pad. The move from drawing tool to information management tool is a significant way to get more value from the investment.

Brian S. Friedlander: Can you share with us how it came about that you developed Power Markers?

Nick Dufill:I was finding that although maps are very easy to create, it can be hard to find things again, especially if you are in a hurry. Most of my work is in MindManager maps, and I needed to be able to dive into a map, make an update or check something, and get out again just as quickly. If it is a project I am currently working on, this is easily done. But I found that maps that were written a few months ago required a lot more browsing before they "clicked" back into place. Working within the large-scale visualisation is a cumbersome way to keep an eye on a small number of critical points that can bite you. You only need to see the fin to know what to do - reviewing the whole shark every time is not necessary.

Originally, Power Markers was only going to be a roll-up of key markers to the centre of the map, to make it easy to drill down to areas that needed attention. The "Hot List" task pane was added as an afterthought, but it turned out to be far more useful than I expected, so version 2 has developed more around the idea of extracting to-do lists and status lists from maps. Power Markers was never designed on paper first and then implemented, but has grown organically in response to continuous use. This takes longer, but means that the problem it solves is a very practical one.


Brian S. Friedlander:How do you envision users will use Power Markers with their mind maps?

Nick Dufill: Power Markers is really designed to help users implement "dashboard" maps. A dashboard map is a snapshot of a running project or situation that you visit frequently and keep up to date. Of course, this is only one way to use mind mapping software, but given than maps are perfect for storing all kinds of information related to a project orarea of interest, many maps naturally turn into dashboard maps. Power Markers gives you a way to quickly navigate to the essentials points in a map, and reflects the status of the map at a glance - you don't need to surf the whole map to review what is happening, you only need to check what is in the "Hot Lists" that show the most important items.


Brian S. Friedlander: What inherent problems will Power Markers solve for users who create
project dashboards?

Nick Dufill:First and foremost is consistency in the way that information is visualised. Many features of mind mapping software include an element of "user interpretation" in the definition of meaning. Partly because of the richness of mind mapping software features, and partly because of changing habits, we often use many different ways to code meaning into maps. As an example, the humble "action item" could be coded in a dozen different ways, ranging from a highlight colour through to grouping actions together in one part of the map, and including no
mark-up at all - you just *know* it is an action item because you
wrote it, so given the context, what else could it be? True today and tomorrow, but in three months it will not be nearly as clear. Because
Power Markers uses MindManager's Map Markers, and only works if you use them consistently, this helps users to discover the value of consistent labelling of the content of their maps, so that Power Markers can generate useful and accurate lists. This is a big step towards higher value maps.

Once you have got a reliable set of lists that give you a snapshot of the status of the map, the principle benefit is saved time; you can check a map in a few seconds instead of a few minutes, and feel confident that it is an accurate check. Power Markers does not tell you anything that is not in the map if you were to explore it by
hand, but it does it much, much faster and more reliably.

Brian S. Friedlander: What new features did you add to Power Markers 2 that will make it
even easier and more powerful solution?

Nick Dufill:There were three practical problems that I wanted to solve in my dashboard maps; first, I wanted the status to be date-sensitive, so that I knew whether I needed to do stuff right now, or whether it could wait. I also wanted to be able to go straight to hyperlinks and
attachments in a map, as most of the time I embed links and useful documents within the context of a project, rather than keeping separate folders and lists elsewhere, e.g. in browser favourites. I also wanted to easily copy subsets of useful Power Marker configurations from one map to another, so that I could build a dashboard from useful parts of other maps. The first two issues were solved with the addition of "Automatic Markers", where Power Markers detects a particular condition on a topic, and then sets a map marker that can be handled just the same as a manually applied one. The third was solved with "Active Legends" - reversing the way that the
Map Marker legend works. Today, MindManager can create a legend tree in your map from the map markers that you have defined. But with Power Markers, you can design the legend in your map first, then import it back into the map marker configuration. This is a natural way to design your map, and means you can make the marker legends a valuable part of the map - not something that gets overwritten each time you change your mind about the markers that you use. It also means that by copying and pasting a legend tree (or a part of it) to another map, you can copy map marker configurations when building new dashboards.


Brian S. Friedlander: What are the biggest benefits that users will accrue when they use
Power Marker 2?

Nick Dufill: While Power Markers is not a complex idea, the long-term benefits are
a bit more subtle. Having a fast and focused navigation system into the heart of your map is cool, but the presence of this list has important implications for the map too. It means that you do not need to worry about trying to keep lists in your map, which can seriously compromise its design. For example, I have seen a "Getting Things Done" template map that organises information by building lists in the map. This can only work if everything in your map belongs on one
and only one list, otherwise you have to choose whether to duplicate things in multiple locations, or deliberately omit things from a list to which they properly belong, just to keep your map under control. This is the basic weakness of trees. But by moving list-making activities into a separate window, you remove all the associated constraints and compromises from the map itself, and can focus on the best way to organise your map for comprehension. This is where the
tree structure comes into its own by layering detail. So Power Markers has a lot of impact on the fundamental design of maps. One of the dashboard templates in version 2 is a GTD template where the lists are in the Hot List pane, not in the map itself, which means that the same item can appear on as many lists as are necessary, with only one instance in the map itself.

The second long-term benefit arises from thinking about how you can use a set of lists to profile a project, situation or knowledge resource. To design the lists (or map marker groups), you have to stop and think "What do I *need* to know, in order to take action?" You get better at questioning the value of a list - is it something that is just nice to see, or is it actionable? Who will use this information, and how will they use it? Designing the lists for a dashboard map is effectively designing the way that you measure status, which bridges the gap from what is sometimes seen as the less well defined activity of "mapping things" to the realities of
business processes. Power Markers can be used to model established processes through the design of the Hot Lists, reflecting an instance of the process. Mind Maps have always had bad press when it comes to visualising processes, because a tree is not a flow chart and never
will be. But by using the process as a way to *profile* a map instead of trying to draw it in the map, a lot of new possibilities are opened up. I am looking forward to working with people who use MindManager as a platform for implementing either formal or home-grown processes, to understand how Power Markers can be improved further to make it easy to reflect status in the language of the process.


Brian S. Friedlander:Where can MindManager users purchase Power Markers 2?

Nick Dufill: Power Markers is available on the Olympic web site at

www.olympic-limited.co.uk/mindmanager-add-ins/power-markers/

Power Markers is available in two editions - Standard and Pro. The Standard version is free, requires no license key, and will work for up to 15 lists per map. For more than 15 lists per map, the Pro version is required. There is also a free White Paper on designing dashboard maps with MindManager and Power Markers, which explains whydashboard maps are different to other kinds of map, and the steps in their design.

I would be glad to answer any questions either here or at
www.beyond-mind-mapping.com.

Saturday, June 12, 2010

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Posted from Diigo. The rest of my favorite links are here.

Wednesday, June 9, 2010

Ted Talk Tuesdays - revisited

A few days ago I wrote about how a gifted teacher was planning already for next year and how she was going to have Ted Talk Tuesday lunches for her gifted students, etc. I made up the Tuesday part. I have no idea if she's going to have it on Tuesdays or not. But, I've been thinking about it and about how that very good idea could be ramped up a bit.

At first I thought, "After they've watched a few videos and get the hang of it, allow THEM to choose the next one to watch. They would have to introduce it to the others and also tell about the speaker. And they'd have to tell why that video was chosen." Then I thought, "No good, because they'd have to watch so many of them ahead of time and then the event wouldn't be as interesting." Hmmm... OK. NO way around that. So, the teacher will have to choose. But, that said, I'll just BET that the kids will be watching others anyway and suggesting them. Maybe that's the better solution. Let it happen naturally.

Then I got to thinking about something that Joanne Romano, another CFF Mentor, had said. "What if they made their OWN 'Teddie' Talks?" (They'd probably have to use another name, but you get the idea.)  They would have to submit their written speech to have it checked for accuaracy, etc, and then maybe eight would be selected. Make it a challenge to get accepted. Speeches would be written and slides created (NO BULLETS!!!) Then, wouldn't it be great if they'd get to give those speeches in an assembly - or even as an evening event that parents could attend? All the speeches would be filmed and posted to, maybe, the Keystone Commons, or even to the district's own site. The bio's of the speech givers would be withheld unless the parents knew a password or something, if that was a concern. (They don't have a problem with posting images and names of kids playing sports, though.) I'm also thinking that, if these speeches were given during the school day they could be live streamed to other classes around the country. Stay with me here - maybe not the country, but the state. Several teachers doing this and then the top speeches get chosen and could be presented virtually over video conference units, or streamed over the PAIUnet. Or.. I guess that's jumping the gun, isn't it?

Max length of a speech is ten minutes. Max number of presenters in a night is 7 or 8, maybe. The details would be worked out later. I'm just thinking out loud.

Don't you love the idea? Wanna get that started? How can I help? Say the word.


Edit: 6-12-10
I didn't want this buried in the comments. MANY thanks to ATLTeacher who left the following as a comment:
Examples here: http://tedxproject.wordpress.com/
http://teachingwithted.pbworks.com/

MANY thanks to ATLTeacher, first of all. But second, I'm wondering where the heck I've been if I hadn't known about those two great sites before.  Can't wait to share them with the teachers. I'm really hoping someone around here will get this going. I'd LOVE to see it.
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Establish a Culture of Learning With the Faculty

Among the members of your faculty are folks who are currently taking Graduate courses, some even for a Doctoral degree. They are reading current literature on topics ranging from classroom management to school law to technology and resiliency. You also have teachers who are just simply fascinated with technology and the impact it can have on teaching and learning. Still others are reading for pleasure. The sad part is that, in most schools at least, there is nothing in place to help those teachers share what they're learning.

Think about this a minute. What if there was a way to easily share their learning with the rest of the faculty? And, what if that sharing lead to more sharing and discussions at faculty meetings? We're talking about a culture of learning. Those of us on twitter are there for that reason. We enjoy learning from others. We read blogs and follow the links and suggestions of other educators. Why not do that in your own faculty?

What tools would I consider for this? You could certainly use something like Twitter. In fact, once they got into a habit of checking in on twitter every now and again, your faculty might then begin to follow other educators from around the globe, and wouldn't that be wonderful? The only piece to using twitter that would not make it first on my list is that it's difficult to save tweets and refer back to them later. Yes, it can be done, but after a while the tweets just aren't in any sort of manageable format.

You'd have to use something else in addition to twitter - I'm thinking of Diigo, in particular. Imagine having your faculty on Diigo and into various groups according to disciplines or interest. You could have a Science group, and a Math group, etc. You could also have a group called Classroom Management or Tech Ideas, etc. Then, as they happen upon a good website they could bookmark it, tag it, and share it with their group members via the Groups option built into Diigo. The ability to leave notes on a page that other group members can see means that they can discuss their findings with each other - right on the site. What happens, then, is that they're sharing their discoveries with other staff who have the same interest. They're sharing their learning. This would then give them the understanding in order to get their students using the tool, thus creating a culture of learning among your students, as well.

I'm thinking that a Ning site, or its equivalent, might be ideal. There, in a private environment, the staff could share the articles, have discussion posts about them, share photos, share videos that they've found online, and much more. If not Ning, then maybe a site like a Drupal site on your own server might work well with a little planning.

But, the bottom line is that I think the dividends are many from working toward this goal. You've got a building full of educated people. Why not let them share their learning? All buildings seem to have their own 'culture', so to speak. Why not make it a culture of learning and sharing?

Edited 9:36 PM
This isn't a new idea, by any means, and I'm not the first person to say it. But, it's not being done, either. I just talked with a teacher today who made me think about how much we're missing by not learning from each other.

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Proses Multiplexing pada Format Transmisi Digital E1

E1 atau sirkuit E-1 (Inggris: E-carrier) adalah nama format transmisi digital dengan 30 kanal suara digital berkecepatan 2,048 megabit per detik. E1 merupakan standar yang dipakai di Eropa dan Indonesia

Saluran ini berbentuk saluran telepon khusus dan digunakan pada awalnya untuk sambungan trunk antar sentral telepon, namun sekarang mulai banyak disewakan oleh perusahaan telekomunikasi untuk jalur komunikasi data.

Frekuensi Sampling yang diterapkan pada E1 adalah 8 kHz
ada 32 Timeslot pada E1
1 Timeslot berisikan 8 bit
Timeslot1 untuk Sinkronisasi
Timeslot16 untuk Signaling

karena frekuensi standar yang digunakan adalah 8kHz, maka periode pada setiap timeslot adalah 1/frekuensi

T=1/8kHz
T=125 mikro detik

karena 1 timeslot berisikan 8 bit, maka dalam 1 time slot memiliki kecepatan penyaluran data 8bit/125mikro detik =0.064 x 10kbps = 64 Kbps

Jadi kecepatan untuk sebuah E1= 32 slot x 64 kbps = 2048 kbps = 2.048 Mbps.

Pengolahan Sinyal Digital : Sampling, Quantizing, Encoding

Pada dasarnya semua suara audio, baik vokal maupun bunyi tertentu merupakan suatu bentukan dari getaran. Ini menandakan semua audio memiliki bentuk gelombangnya masing-masing. Umumnya bentukan gelombangnya disebut dengan sinyal analog. Sinyal analog adalah sinyal yang bentuknya seperti pada . Namun sebuah teknik memungkinkan sinyal ini diubah dan diproses sehingga menjadi lebih baik. Teknik ini memungkinkan perubahan sinyal analog menjadi bit-bit digital. Teknik itu disebut teknik sampling. Jika telah menjadi sinyal digital maka sinyal ini jauh lebih baik, sedikit noisenya dan juga dapat diproses / ditransmisikan dengan mudah.

Proses sampling

Pada proses ini terjadi suatu pencuplikan dari bentukan sinyal analog. Pencuplikan dilakukan pada bagian-bagian sinyal analog. Ini dilakukan dengan sinyal-sinyal sample. Bentukan sinyal sample dapat dilihat pada Gambar berikut:

Ada suatu aturan tertentu dari sinyal ini. Teori Shannon menyatakan frekuensi sinyal ini paling sedikit adalah 2 kali frekuensi sinyal yang akan disampling(sinyal analog). Ini adalah batas minimum dari frekuensi sample agar nantinya cuplikan yang diambil menunjukkan bentukan sinyal yang asli (analog). Lebih besar tentunya lebih baik, karena cuplikan akan lebih menggambarkan sinyal yang asli.

Contoh suara manusia lebih sensitif mendengar suara dengan frekuensi 400 Hz sampai dengan 4000Hz. Hal ini tentunya akan sangat baik disampling dengan Frekuensi Sampling 8000 Hz atau 8kHz.


Gambar diatas adalah bentukan proses pencuplikan. Setelah dilakukan proses ini maka terbentuklah suatu sinyal analog-diskrit yang bentuknya menyerupai aslinya namun hanya diambil diskrit-diskrit saja.

Quantisasi

Ini adalah proses pembandingan level-level tiap diskrit sinyal hasil sampling dengan tetapan level tertentu. Level-level ini adalah tetapan angka-angka yang dijadikan menjadi bilangan biner. Sinyal-sinyal diskrit yang ada akan disesuaikan levelnya dengan tetapan yang ada. Jika lebih kecil akan dinaikkan dan jika lebih besar akan diturunkan. Prosesnya hampir sama dengan pembulatan angka. Tetapan level yang ada tergantung pada resolusi dari alat, karena tetapan level merupakan kombinasi angka biner, maka jika bitnya lebih besar kombinasinya akan lebih banyak dan tetapan akan lebih banyak. Ini membuat pembulatan level sinyal diskrit menjadi tidak jauh dengan level aslinya. Dan bentukan sinyal akan lebih bervariasi sehingga akan terbentuk seperti aslinya. Proses ini membuat sinyal lebih baik karena bentukkannya lebih tetap. Proses ini juga mengecilkan error dari suatu sinyal. Sinyal juga akan dikecilkan atau dibesarkan mengikuti besar Quantisasinya.


Perubahan ke digital (Encoding)

Setelah diquantisasi maka tiap-tiap diskrit yang ada telah memiliki tetapan tertentu. Tetapan ini dapat dijadikan kombinasi bilangan biner, maka terbentuklah bilangan-bilangan biner yang merupakan informasi dari sinyal. Setelah menjadi sinyal digital maka proses-proses perekayasaan dapat dilakukan. Yang harus dilakukan adalah merubah informasi digital tersebut dengan proses digital sehingga menjadi suara-suara yang kita inginkan. Proses dapat dilakukan dengan berbagai macam alat-alat digital (komputer). Sample-sample yang ada juga digunakan sebagai informasi untuk menciptakan suara dari berbagai macam alat elektronik (keyboard dan syntitizer). Penyimpanan suara juga akan lebih baik karena informasinya adalah digital.

Contoh Jika Dikuantisasi 8 Bit maka pada Perubahan Digitalnya akan menjadi 8 bit biner.
Jika sinyal yang menempel pada sumbu Y bernilai 5 maka akan menjadi 00000101

Source : http://elektroindonesia.com/elektro/elek35a.html

Monday, June 7, 2010

MindMeister Releases Mind Mapping Extention for Google Wave

While I haven't spent enough time using Google Wave to cast my opinion, several of the mind mapping companies are finding it fertile ground to release extensions that add a collaborative mind mapping application that runs inside of the threaded discussion. Today I learned that MindMeister released their Google Wave mind mapping extension that adds the ability to create a simple mind map within a threaded discussion. To the left is a screenshot of the MindMeister within a Google Wave discussion. Granted the features are limited but it is just the beginning for this platform.

Sunday, June 6, 2010

Internet and Network Connection Glossary

Virtual Private LAN Service (VPLS)
Virtual Private LAN Service (VPLS) allows different sites to communicate as if they are connected
to the same LAN. Service providers offer simplified “any to any” (or “multipoint-to-multipoint”)
VPLS service to enterprise customers, allowing enterprises to focus on their core business.
In addition, broadband network operators can use VPLS to efficiently distribute “point-tomultipoint”
traffic such as IPTV to multiple subscribers concurrently.

Autonomous System (AS)
An autonomous system (AS) is a collection of connected Internet Protocol (IP) routing prefixes under the control of one or more network operators that presents a common, clearly defined routing policy to the Internet.

Multi-Service Access Node (MSAN)
A 'Multi-Service access node' or (MSAN) also known as MSAG or 'Multi-Service Access Gateway' is a device typically installed in a telephone exchange (although sometimes in a roadside serving area interface cabinet) which connects customers' telephone lines to the core network, to provide telephone, ISDN, and broadband such as DSL all from a single platform.



Broadband Remote Access Server (BRAS)
A Broadband Remote Access Server (BRAS, B-RAS or BBRAS) routes traffic to and from the Digital Subscriber Line Access Multiplexers (DSLAM) on an Internet service provider's (ISP) network.

Digital Subscriber Line Access Multiplexer (DSLAM)
A Digital Subscriber Line Access Multiplexer (DSLAM) allows telephone lines to make faster connections to the Internet. It is a network device, located in the telephone exchanges of the service providers, that connects multiple customer Digital Subscriber Lines (DSLs) to a high-speed Internet backbone line using multiplexing techniques.

Asymmetric Digital Subscriber Line (ADSL)
Asymmetric Digital Subscriber Line (ADSL) is one form of the Digital Subscriber Line technology, a data communications technology that enables faster data transmission over copper telephone lines than a conventional voiceband modem can provide. At the telephone exchange the line generally terminates at a DSLAM where another frequency splitter separates the voice band signal for the conventional phone network.

Digital Loop Carrier (DLC)
A Digital Loop Carrier (DLC) is a system which uses digital transmission to extend the range of the local loop farther than would be possible using only twisted pair copper wires. A DLC digitizes and multiplexes the individual signals carried by the local loops onto a single datastream on the DLC segment.

I LOVE this idea for using TED in school

Recently, a friend who teaches (soon to retire) in Central York school district in PA, emailed me to tell me about how her Gifted teacher is going to be using TED videos with her students next year.

The teacher will have a weekly Ted Talk Luncheon with the Gifted students. They will bring their lunches to her room and they'll watch a Ted Talk video and discuss it. Now, with so many of the talks being 20 minutes long their discussions can't be very in depth, so I'm betting that she'll set up a Discussion Forum for them to use, as well.

Isn't that a great idea? I love it! Wouldn't it be great if, say, the AP Physics teacher and the Earth Science teacher, and the Social Studies teacher would also do something like this? There are plenty of great videos for each discipline, and they could always show videos from PopTech or Fora.tv, as well.

I love it!

Going One-to-One? Something to consider FIRST

Recently I've been hearing of districts that have either already gone one-to-one or who are in the midst of the planning stages for it. Very exciting news for the students and teachers in those districts, to be sure, and certainly not a decision to be taken lightly, no matter HOW much money your district has.

But, in the cases I've heard there was one very important piece missing from the discussion. There was a lot of talk about what kind of laptop to purchase. Mac or Windows? Laptop or netbook - or even, now, the ipads?There was plenty of consideration given to the network's infrastructure and whether or not it could handle the demands of having every student online at the same time. There was ample discussion about how to handle lost or stolen or broken equipment, and that's absolutely necessary. And, there was plenty of discussion about the logistics of imaging all those laptops and summer procedures, etc. There was even some discussion about whether or not to allow students to put decals on their laptops.

But, in my thinking, the biggest question of all was not asked. And that is, "What does teaching and learning look like in a one-to-one school?" And, there are follow-up questions to that one. Like, "What will it look like if it's successful?", and, "What are the 'look-fors' when observing?"

That leads to another question. Assuming you have an answer to what teaching and learning looks like, and what the 'look-fors' are, then the next question should be, "Is our faculty ready for this?" A corollary to that is, "Does this faculty share our vision?" And, "What skills does our faculty need to have in order to realize the vision of what teaching and learning looks like?" Beyond that is, "How does our Professional development have to change in order to a) get the buy-in to the one-to-one vision, and b) get the teachers the skills they need to facilitate learning in a one-to-one school?"

But, it doesn't stop there. We've now stopped saying that "kids just know this stuff", and we're appreciating the fact that they don't know it, and they need instruction on it. So, once your vision of teaching and learning is solid, and you have an idea of the kinds of assignments and projects your students will be asked to do, then you need to ask the next question, "Where will our students acquire the skills they'll need in order to function at a high level in a one-to-one setting?" What does your "computer curriculum" look like now? Is it Microsoft Office alone? That's not going to be nearly sufficient when you're one-to-one. If the only skill they will need is Office, then your vision isn't an informed one. That would mean that you're going to be seeing a lot of students typing a lot of papers, and if that's all that a one-to-one program is, then save your money. All you'll have is what you already had, but now you'll also have a lot of computers. You're going to need to revamp your Business curriculum in order to teach the skills to the students. Will it be a required course in 9th grade? Should it start in middle school? What exactly ARE the skills they'll need?

So, the questions about logistics are fine, but they're surely not the first questions to ask. Even the question about affordability and sustainability aren't the first questions to ask. Your first questions to ask have to be those that define your goals. If the goals aren't worthwhile, then save the money. But if they are, then do whatever you can in order to make it happen.

I'll pull those questions out of the text - just for convenience. If you're in a one-to-one building or thinking of going in that direction, THESE, I believe, are the questions to ask first.

    1)    What does teaching and learning look like in a one-to-one school? Is that what we want?
    2)    What does it look like if it's successful? What does it look like if it's NOT successful?
    3)    What are our 'look-fors' when observing a classroom in a one-to-one setting?
    4)    Is this faculty ready for the change? Does this faculty share our vision for the desire to move in this direction?
    5)    What skills do the teachers need to have in a one-to-one setting?
    6)    How should our professional development change in order to ensure that they have both the skills with the laptop as well as the understanding of the new pedagogy that is required?
    7)    Where will the students learn the skills they'll need? What exactly are those skills? When will they begin to learn them?

In the next post I'll share my thoughts on what those skills for students and teachers might include.

Edited 6/6//10 11:27 AM
One more thing to ask yourself: Does our school's filtering policy support or interfere with our vision. One district I was in is already in one to one, yet they block Google Docs. Further, they offer no alternative to it. There's one tech person who will be out of a job very soon if that doesn't change - IMHO, at least.
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Saturday, June 5, 2010

Post weekly (weekly)


Posted from Diigo. The rest of my favorite links are here.

Friday, June 4, 2010

Beyond the mouse-driven computer interface

A comment in a recent post about a writing prompt idea expressed concern that we're inviting students to take a stand on a topic. I hadn't thought of that before. Perhaps writing prompts should be more neutral. Interesting enough to encourage discussion but not so controversial or volatile in nature as to create sides. We've certainly got enough of that in too many places in this world.

So, with that in mind I'll share this recent TED video that shows a new kind of computer interface. Certainly this will interest the techie kinds of students, but others may find this idea having applications in other areas of life, from medicine to entertainment.

Check this out. No mouse. No keyboard. Instead, a gloved hand. Beyond the immediate and perhaps obvious uses for this kind of system, what other areas can benefit from it? Does it have applications for business? What about our need to create documents. This is fine for manipulating existing files, but what about creating them? If this catches on will the mouse disappear? Lots of questions.

Thursday, June 3, 2010

How to Organize Your Message / Email into Folder by Yahoo Mail Filter

Electronic mail, most commonly abbreviated email or e-mail, is a method of exchanging digital messages. E-mail systems are based on a store-and-forward model in which e-mail server computer systems accept, forward, deliver and store messages on behalf of users, who only need to connect to the e-mail infrastructure, typically an e-mail server, with a network-enabled device for the duration of message submission or retrieval. Originally, e-mail was always transmitted directly from one user's device to another's; nowadays this is rarely the case.

An electronic mail message consists of two components, the message header, and the message body, which is the email's content. The message header contains control information, including, minimally, an originator's email address and one or more recipient addresses. Usually additional information is added, such as a subject header field.

How Many Emails Are Sent Every Day?
Answer: Statistics, extrapolations and counting by Radicati Group from May 2009 estimate the number of emails sent per day (in 2009) to be around 247 billion.
247 billion messages per day means more than 2.8 million emails are sent every second. Around 80% of these millions of message are but spam and viruses.

The genuine emails are sent by around 1.4 billion email users.


How to Organize our Email? so we can get our Genuine Email
1. Trashing spam or junk email into Spam Folder
Just Give Check beside the Sender and Judge it as a Spam. If those email come again, You'll find it at Spam Folder.
2. by Yahoo Mail Filter (Modern appearance, not classic email appearance)
a. click your inbox
b. click one email
c. filter email like this..

d. give an filter option. You can filter it by Sender or by Title. Don't forget to choose the destination folder [like this image below; You should also make a new folder first of all ^_^ ups, sorry of being late to tell about that..^_^]


The Result : email from social networking and any kind of same email can be group into folder like image below.
If Social Networking email become a flood, dont worry about mixed with your Genuine or Important Email.
That's is the point of Organize Your Message / Email into Folder Mail Filter.

Wednesday, June 2, 2010

CS Odessa Announces Update to ConceptDraw MindWave



CS Odessa Announces Update to ConceptDraw MindWave, a No-Cost Mind Mapping Gadget for Google Wave

San Jose, California, June 2, 2010 – CS Odessa has released an updated version of its popular mind mapping tool, ConceptDraw MindWave for Google Wave. This is a no charge Google Wave add-in, which enables users to rapidly collaborate with any amount of people, from 2 to 2000.

ConceptDraw MindWave provides teams the opportunity to interactively collaborate on a mind map while building a map structure that represents the focus of collaboration. The mind map can then take full advantage of Google Wave playback, or be downloaded to one’s desktop for further development using ConceptDraw MINDMAP.

Improved Functionality of ConceptDraw MindWave 2:

· Getting Started mind map on first launch to introduce new users to functionality.

· Horizontal scroll bar for more versatile navigation.

· Automatic hyper linking of URL topic text.

· Added help and privacy resources to gadget

· New shortcuts and many usability improvements

Olin Reams, General Manager for the Americas at CS Odessa, observes, “We demonstrated ConceptDraw MindWave, at the recent Google I/O Developers Conference. ConceptDraw MindWave was presented in the Sandbox and was a huge success.”

“Many of the developers and spectators in attendance were able to immediately see the great potential in being able to build and store a mind map whose access can be embedded anywhere HTML appropriate, such as a web page or enterprise portal. Participants are then free to discover and interact with the wave mind map, join the conversation, and add or edit information. The end result is a great collaborative productivity tool.”

ConceptDraw MindWave is a no cost gadget for Google Wave. To install ConceptDraw MindWave, please visit: http://www.conceptdraw.com/mindwave.

ABOUT CS ODESSA

Founded in 1993, Computer Systems Odessa supplies cross-platform productivity tools and graphics technologies to professional and corporate users around the world. With headquarters in Odessa, Ukraine and an office in California, CS Odessa sells products internationally through resellers in over 25 countries. The ConceptDraw Productivity Line of products has won numerous awards and is used by hundreds of thousands of people all over the world.

www.conceptdraw.com

 
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