the name mouse originated from the originated at the Stanford Research Institute,and derives from the resemblance of early models (which had a cord attached to the rear part of the device, suggesting the idea of a tail) to the common mouse.
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.
and since these early days many different types of mice(plural) and mouse(singular) have been designed for example
Mechanical mice : or better known as the "ball mouse" ,this is the most unreliable of all models as the ball can become dirty and greasy which then directly affects the performance of the mouse ,these mice are still widely used but are less favourable then the >
optical mouse : a optical mouse uses a light-emitting diode and photodiodes to detect movement relative to the underlying surface, rather than moving some of its parts — as in a mechanical mouse
optical mice are the most popular of all pointing devices and have the added advantage of working on nearlly all surfaces (except glass and a mirror)
there are other types of pointing devices such as track pads ,which work in a similar way to a mouse(left and right click) but use a pad and finger movement instead of a laser or ball
finally there are two ways to connect a mouse(and most other pointing devices)
the ps2 connection which is also used for your p.c keyboard is the default connection on most p.c,s and has the added advantage of being plug and play,older p.c, used the older ps2 standard which requires a adapter to use
usb is the modern way of connecting a mouse(and keyboard) however most p.c,s need configuring in the bios to enable "usb mouse support" and "usb keyboard support",however if you use both ps2 connection these should be set to "disabled "
wireless mice and keyboards are also avalible aswell,however these are notourisly unreliable and tend to "go to sleep" and require a second or so to start working again,however newer wireless mice are becoming more reliable as the new wireles usb connectivity standard is developed
any problems let me know
good luck chasey !