Archive for February, 2010

Siafu computer for the people with vision less

Siafu Computer

Siafu is a personal computer which can be used by the people with vision loss. It gives great experience to those people. This great device is designed by Jonathan Lucas. It is looks like Microsoft surface which allows user to interact with this computer by simple touching. The screen surface uses the concept material called magneclay ( or magnetized liquid), which can to morph upward into any shape using electromagnetic field enable the device to create a Braille(a process of writing for the blind people consists of raised dots that can be interpreted by touch) displayed in a book-like format. These people can access even 3D relief images.
It measures 12 x 20 x ¾ inches, it can replace the 5 devices existent on the market today, which are needed by visually impaired: monitor, keyboard, refreshableBraille output, microphone and speakers. User can process everything which a person with no eye problems can, from browsing websites to navigation through menus, and this is done by the integrated keyboard and the 9-button Braille keyboard. The Braille output allows the user to conveniently review what they are typed. If it seems difficult they can use built-in microphone which is the alternate to typing. It uses voice recognition software, which reads the voice command from the microphone and the corresponding words will appear on the screen. It can also convert the text on the screen into Braille relief.

Siafu computer display pages versus normal pages

The technology used in this computer represents and oil based synthetic agent that possesses limitless morphing capabilities, and with its loose molecular structure can rearrange when prompted by electrical and magnetic charges. This device uses 2D to 3D image conversion technology to process screen images, it produces 3-dimensional digital wire frame which is then processed through electrical currents into the magneclay. It displays highly accurate 3-dimensional representation of the image, which helps user to feel the original image by simply touching.

Siafu computer 9-button Braille keyboard

Siafu interprets and translate every musical note and rhythm into a continuous flow of soothing ripples and undulations through the magneclay. It contains 2-channel stereo audio speakers inbuilt. Siafu’s Media Player mode allows users to listen music in high quality. This device is recyclable and does not require maintenance.

what is freeware

Freeware ( from “free” and “software” ) is a computer software which can be used by anyone for free of cost. A software classified as freeware works fully and it is available for unlimited time access with no cost. Freeware can be proprietary software available at zero price.

The software license may impose restrictions on the type of use including personal/individual use, commercial/non-commercial use, academic use, non-profit use or combination of all these. The license may be free for personal and non-commercial use.

Freeware may or may not be free and open source software. Free software foundation asks users to avoid calling “freeware” free software. Free software can be studied, used and modified without any restriction. Freeware is different from shareware.

Freeware provides users to access whole feature of the software without any limitation/cost, where shareware requests users to pay money after the trial period of the software or to provide full feature of the software.

Easy way to delete and avoid virus in pen drive

Most of the computers affected by virus because of using pen drives or USB drives. Nowadays everyone using pen drive for their own purpose. We cannot stop using pen drive to escape from virus. Instead we can delete and avoid virus in pen drive using simple steps without any antivirus software. First we can see,

How to delete virus in pen drive?

Plug your USB drive or Pen drive to your computer.

It will show popup window asking you to choose among the actions.

Just simply close it.

Visit My Computer and look at the drive letter of your USB drive or Pen drive. Consider it is H:

Now goto start –>  Run and type cmd that will open Command Prompt window.

In Command Prompt, enter the drive letter with : [ For example, H: ] and press Enter.

Then type dir/w/o/a/p and press Enter.

You will see a list of files. Now look for the file with these names

1. Autorun.inf

2. New Folder.exe

3. Info.exe

4. explorer.exe

5. restore.exe

6. New_Folder.exe

etc.,

If you see any of the file name, it must be virus.

Now type the command attrib -h -r -s -a *.* and press Enter.

and then delete each files using the following command,

del filename

For example,

del Autorun.inf

del restore.exe

etc.,

That’s all. Now you’ve deleted virus in your Pen drive. Those who not believe after this process, they can scan their USB drive or Pen drive to believe. If the file cannot be deleted, try it in Safe Mode. It should work.

You may think doing this process every time is time consuming. To avoid this process, now we can see,

How to avoid virus is pen drive?

We are deleted virus in pen drive.

Now open new Notepad.

(Start –> All Programs –> Accessories –> Notepad)

No need to type anything in that Notepad.

Press Save as that Notepad file in the location H: with the name  ” autorun.inf “ with double quotes.

Now autorun.inf file is created in your Pen drive.

Right click that file and select Properties.

Set/tick the attributes to that file name Read-only and Hidden, and select OK.

That’s it. Now 90% of the viruses are avoided.

Just try it and don’t forget to give your valuable comments.