Question #3:

A computer mouse is the device that controls the cursor on the monitor. The core principle of the earlier versions is the mechanical movements on wheels attached to the outer case along with a rubber ball. The mouse moves on the surface of the pad and the rubber ball will facilitate the movement of wheels along with it. In the process the data of its movements will be transmitted to the computer. This original model of mechanical computer mouse is still in use despite the introduction of new models, as it is the cheapest mouse available in the market. The mouse in fact controls almost every operation of the computer.

3.1The mechanical mouse requires a ball to move the cursor on the screen. To get more efficacies with this type of mice, a flat surface named mouse pads is necessary.

3.2The optical mouse uses a laser; precisely an optical sensor to help detecting the mouse’s moving. More expensive than the two other types, the optical mousses offer more precision and speed and even can be used on any surface.

3.3The optmechanical or optical-mechanical mouse is a combination of the optical and the mechanical technologies. It uses a ball but detects the mouse movement optically. It is now the most commonly used with PC.

3.4The cordless mouse uses the wireless communication technology (via infrared, radio or Bluetooth) to transmit data to the computer. And like the wireless, it doesn’t use any cord.

3.5wireless mouse which relies infrared, radio signals or Bluetooth to communicate with the computer. Using no cord, the wireless mouse contains a transmitter to send information to a receiver itself connected to the computer. The wireless mouse is usable from 2m to 10m of the computer.