Datasheet

Identifying Components of Motherboards 27
about ½ inch in diameter, in a 5-pin DIN configuration. Figure 1.17 shows an example of
the AT-style keyboard connector.
The PS/2 connector (as shown in Figure 1.18) is a smaller 6-pin mini-DIN connector.
Many new PCs you can purchase today contain a PS/2 keyboard connector as well as a
PS/2 mouse connector right above it on the motherboard. Compare your PC’s keyboard
connector with Figures 1.17 and 1.18.
FIGURE 1.17 An AT connector on a motherboard
FIGURE 1.18 A PS/2-style keyboard connector on a motherboard
Wireless keyboard and mouse attachment is fairly popular today and is most often
achieved with Bluetooth technology or a proprietary RF implementation.
86498book.indb 27 7/22/09 5:37:31 AM