Visual Analyser: Virtual Oscilloscope :)

Visual Analyser is a complete professional real time software, transform your PC in a complete set of measurement instruments; no new hardware necessary (you can use the Sound Card of your PC) or you can use a specific external hardware.

CCleaner: Cover ur Tracks

     CCleaner is our system optimization, privacy and cleaning tool. It removes unused files from
your system - allowing Windows to run faster and freeing up valuable hard disk space.
It also cleans traces of your online activities such as your Internet history.
Additionally it contains a fully featured registry cleaner.

Robo Toys: an illustrated guide to building combat robots

Robo Toys: an illustrated guide to building combat robots

By: Grant Imahara

Virtual CD/DVD Drive: Virtualize Optical Media

    Virtual CD/DVD drives creates images of your optical media, so you can use 

them at any time without having the physical medium on hand.

In many important works we need these virtual drives.

There are many Virtual CD/DVD Drive softwares available on internet.

Bellow are some good Virtual CD/DVD Drive Softwares:-

Virtual Printer

A virtual printer is a piece of computer software whose user interface
and API resemble that of a printer driver, but which is not connected
with a physical computer printer.
When a user requests that a document be "printed" by a virtual
printer, then, instead of having the document printed on paper or other
material, the underlying software would process its contents in some other
way, often resulting in a file being produced or the information being transmitted.

It Save a document to another format such as a PDF file.

Bellow are some good virtual printer Softwares:-

The Cracking Code Book: How to make it, break it, hack it, crack it

The Cracking Code Book: How to make it, break it, hack it, crack it

By: Simon Singh