Entries Tagged 'Electronics' ↓
April 22nd, 2008 — Electronics, Software
In the future Ill have a cell phone that will be capable of doing all following.
- Receive AM, FM and all other sorts of radio
- Connect to GSM, CDMA, and any other network technology
- Receive and decode satellite video
- Receive and decode terrestrial TV transmission
- Be my wifi and wimax transceiver
This is all that I can think of now. The point is that your cellphone will become a universal communication device that can handle any communication technology. If some new technology developed, all you need is to upgrade the software, just like we upgrade linux or windows. This is what software defined radio has in store for us.
In SDR the emphasis is on creating a universal hardware for receiving signals, and then do all the processing on a software platform which So if tomorrow a new communication protocol is invented, all you need to do is, upgrade your software.
More than the end user, the immediate benefits of SDR is to a service provider, like your cell phone service provider. He incurrs a huge cost in upgrading all his equipments when a better technology is released. But with this system, he can use a universal transmission system which can be upgraded to handle any technology just by upgrading the software. This will save the serivce provider a lot of money, and also will result in better customer experience.
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November 12th, 2007 — Electronics, Gadgets
The speed with which the technology has changed with regards to the number of cores inside the processor has been amazing. But is all those cores really worth it? For example a Pentium Dual Core processor has two cores of equal speed working at 1.6GHz which gives you a total speed of 3.2GHz. But will your machine actually use that kind of processing power? Throughout the life time of a processor 95% of these processors never reach 100% Processing Power. Most of the processing power on a desktop machine is taken up by background applications like your operating system, your GUI, the antivirus and in most cases Viruses. And to top it all off these multi-core processors are only supported by very few applications.
Then how do you go about purchasing a new computer?Well the first thing to think about when you are purchasing the computer is your requirement:
Just home use - typing out documents, browsing Internet, Playing a few games and watching movies once in a while - you should go for a AMD Sempron Processor (Celeron only is Sempron is not available)
All the above + Ripping Movies & Music and Playing high end Games, playing around with Corel Draw and Photoshop - you should go for a Pentium Dual Core or an Athlon X2 Processor.
Working with 3D graphics and Autocad? well Core 2 Duo is the answer to your query
Posted by :- Jyothi M John
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November 2nd, 2007 — Electronics
Bug is a collection of easy to use open source hardware modules. The developer can connect together these devices physically and then build programs for various applications.
The bug is based on a fully programmable linux computer with 128MB ram, wifi, USB, ethernet, LCD screen and some control buttons.
To create your dream device you can add various bug modules to the bug base. Some of the bug modules are
- GPS
- Camera
- Accelerometer
- Touchscreen
- QWERTY Keyboard
- Audio
Buglabs also provides you with a development environment called BMI (Bug Module Interface).
The company will soon release Bugnet which will help developers to share their work and connect with others and collaborate.
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October 21st, 2007 — Electronics
Arduino is an electronics platform board with a processor, inputs, outputs and an easy to use development environment. The most important point about arduino is that its open source hardware. The board design and schematics are available, anyone can build an arduino board on their own.
This board is the best to start experimenting with interfacing various devices. The programming is done in C and its quite easy to code. Every college should buy this and make this available to the students.
The board consists of a ATMega168 processor, 6 PWM pins and 6 analog pins. The output of all these pins can be easily controlled by a C program. The board has various versions option like serial, usb and bluetooth. All these can be added to the basic board with minor modifications.
This video will get you started.
http://s1.video.blip.tv/0980000765166/Make-IntroductionToTheArduino640.m4v
The arduino community is very active and very helpful. They will help you with advanced stuff.
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October 20th, 2007 — Electronics
This is the recent buzz among electronics enthusiasts. The gap between electronics and computer science is becoming thin and the significance of open source hardware is increasing.
Like in software, the complete details needed for understanding, rebuilding and enhancing the project is made available. Details usually include idea document, schematics, board design, component specifications and microcontroller code if any. If some mechanical parts are involved CAD drawings are also provided.
There are many projects available on the internet from which we can learn. These are some of the famous projects
- Arduino (embedded development platform)
- Simputer (handheld computer)
- Openbook ( laptop)
- Oscar (Open source Car)
The world is becoming more and more open and information is readily available about almost everything on your finger tips. To me 24 hours a day is not enough.
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