How many types of mouse?

Answer 1

When it comes down to the mouse itself, there are three general types.

A one-button mouse (there is only one button on the mouse, and it acts as a left-click by default), a two button mouse (the left button acts as a primary click, and the right acts as an alternative - or right - click), and a mouse with a mouse wheel (generally two buttons with a sometimes-clickable wheel in between them. This wheel is used for faster scrolling). In mouse styles, there can be a USB (often is faster, more accurate, and includes more features), MousePort (usually GREEN in color on the port, more stable and reliable on older systems), and wireless (found most often on Apple Macintosh computers, uses Bluetooth or radio USB to connect to a computer). Then, inside the mouse, making the pointer move, you have the choice of a track ball (found more often in older mouses, recessed into the mouse and partially exposed underneath, rolls on a surface to detect movement by turning internal gears on an x- and y-axis), Laser (found on modern mouses, especially wireless ones. Uses a red laser reflected off of a surface into a camera to detect change in texture of a surface during movement) and Blue Laser (same technology as a standard red laser, usually more accurate because blue light has shorter, and thus more, wavelengths than red light. Blue lasers can be found in many new Microsoft wireless mouses).

Answer 2

4 that most are aware of: Optical, laser, track ball, and touchpad.