Wireless keyboard and mouse for computer and laptop.

wireless keyboard and wireless mouse are very fantastic and easily handled input device for computer.They do not make wire problem.

This Microsoft Wireless Laser Desktop 4000 keyboard and mouse kit is built for comfort and designed with style in mind! The comfort curve keyboard helps your hands rest in a more natural position and with the High Definition Laser Mouse, your desktop is ready for work and play!

The Wireless keyboard is equipped to simplify your experience with Hot Keys, Enhanced F Keys, Media Center buttons and My Favorite Keys. Plus, with built-in zoom on the keyboard you can easily zoom in to edit detail or zoom out of the entire image. The plush, Cushioned Palm Rest provides better, more comfortable support while you type.

With the ergonomically designed high definition Laser Mouse you can experience more responsiveness, greater precision, and smoother tracking while you work and play in comfort. Use the 4-way scrolling with Tilt to easily and efficiently scroll side to side as well as up and down in worksheets, Web pages, photos, and more!

Work and Play with the Wireless Freedom of this Microsoft Wireless Laser Desktop 4000 Keyboard & Laser Mouse Kit!

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PC mouse information

The mouse is very important input device to operate the computer easily .But do you know the definition of mouse?
To say scientifically,mouse is a small box-shaped device with wheels that is moved about by hand over a flat surface and generates signals to control the position of a cursor or pointer on a computer display.
The most popular pointing device. It was called a "mouse" because it more or less resembled one, with the cord being the tail. Although key commands can often substitute, graphical interfaces (GUIs) are designed for pointing devices. However, graphics applications, such as CAD and image editing, demand a pointing device. On a PC, the mouse connects to the PS/2, USB or serial port
First come to market:
The first marketed integrated mouse – shipped as a part of a computer and intended for personal computer navigation – came with the Xerox 8010 Star Information System in 1981. However, the mouse remained relatively obscure until the appearance of the Apple Macintosh; in 1984 a prominent PC columnist commented the release of this new computer with a mouse: “There is no evidence that people want to use these things.”

Optical mouse:

Optical mouse is used for both as laptot mouse and personal computer.How it works actually?
Developed by Agilent Technologies and introduced to the world in late 1999, the optical mouse actually uses a tiny camera to take 1,500 pictures every second. Able to work on almost any surface, the mouse has a small, red light-emitting diode (LED) that bounces light off that surface onto a complimentary metal-oxide semiconductor (CMOS) sensor.

The CMOS sensor sends each image to a digital signal processor (DSP) for analysis. The DSP, operating at 18 MIPS (million instructions per second), is able to detect patterns in the images and see how those patterns have moved since the previous image. Based on the change in patterns over a sequence of images, the DSP determines how far the mouse has moved and sends the corresponding coordinates to the computer. The computer moves the cursor on the screen based on the coordinates received from the mouse. This happens hundreds of times each second, making the cursor appear to move very smoothly.

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