"Computer Keyboard and Mouse - How to Choose a Suitable One for You?"

A keyboard is a set of buttons that send coded signals to a computer, printer, or communications channel. Each button, or key, corresponds to one or more letters, numbers, symbols, or special commands.

When you press a key, the keyboard sends a code to the computer's CPU that corresponds to the character printed on the key. When the CPU receives the signal, it accepts it either as part of a command or as text input and later appears on your monitor screen.

The following are the normal layout of the computer keyboard:

There is another type of keyboard called ergonomic keyboard that attempt to move the keys closer to your fingers. This special keyboard designs have been introduced to make the process of typing more comfortable.

Basically when you choose a keyboard, few things need to be aware:

• Keyboard buttons sensitivity
• Connection type
• Color and shape
• Warranty period

Computer Mouse (Mice)

Computer uses a mouse or other pointing device to follow the movement of your hand, and convert that motion into instructions.

The following are typically a normal mouse look like:

How to choose a mouse? The differences among different models of mouse include:

• Price
• Connection type - PS/2, USB or wireless
• Sensitivity and performance
• Number of buttons
• Size, color and shape
• Warranty period

Types of Keyboard and Mouse

Generally, there are three types of keyboard or mouse available today:

• PS/2 - connect to the PS/2 port at the rear panel of the system unit
• USB - connect to the USB port at the rear or front/side panel of the system unit
• Wireless - without wire

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