The new Certkiller .com trainee technician wants to know which of the following could be used for
connecting a mouse to the computer. How will you reply? (Select THREE.)
A.
6-pin MINI-DIN connector plug.
B.
DIN-5 connector plug.
C.
DB-9-to-25-pin adapter.
D.
DIN-9 connector plug.
Explanation:
A 6-pin MINI-DIN connector plug is more commonly known as a PS/2 connector. PS/2 mouse
interface is a type of mouse interface that uses a round, DIN-6 connector that gets its name from
the first computer it was introduced on, the IBM PS/2.
All computers came with at least one serial port that the mouse could use with its female DB-9
connector. If the serial port was of the 25-pin variety, the user could plug the mouse’s DB-9
connector into the adapter that was usually included with the mouse to allow it to work.
A DIN-9 connector plug is used to connect to a bus mouse port.
Incorrect answers:
B: A DIN-5 connector plug is used for older keyboards.
Reference:
David Groth and Dan Newland, A+ Complete Study Guide (2nd Edition), Sybex, Alameda , CA,
2001, pp. 232, 236, 237, 238, and 856.