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Chapter 2. Kick-Starting Your Computer > Some Assembly Required - Pg. 15

Kick-Starting Your Computer 15 Figure 2.3. You can connect multiple devices to a single USB port. Connecting the Keyboard and Mouse Connecting a keyboard and mouse was a much easier process a couple years ago. Older computers had a round PS/2-style keyboard port and an oblong, serial port for the mouse. Newer computers have two PS/2 style ports: one for the keyboard and one for the mouse. Even though these ports are still common today, you might have a USB-style keyboard or mouse instead of the standard fare. Following is a list of common connection types: · PS/2 style--Most mice use a PS/2 connector--a round, 6-pin connector that plugs into a PS/2 mouse port. A PS/2 connector typically has a line or arrow molded into the outside of the plug to indicate the top of the plug. Some mice come with a serial-to-PS/2 adapter that enables you to connect a PS/2 mouse to a serial port, in the rare case that your PC has no PS/2 port. · Serial--Older mice use a 9-hole, D-shaped, serial connector that plugs into a serial port of the same shape. The serial port might be marked COM1 or COM2 (COM is short for communica- tions). Use the COM1 port for your mouse. Serial ports also might be labeled 1010, which indi- cates that the port is capable of sending a string of digital signals. · USB--If you have a USB keyboard and mouse, plug the mouse into the USB port on the key- board and then plug the keyboard's USB connector into one of the USB ports on the front or back of the computer, as shown in Figure 2.3.