which of the following device uses a 6-pin Mini DIN connector
a. ps/2- style mouse
PS/2 keyboard has what is called Mini-Din 6 pins and a mouse has DIN 5 pins.
Keyboard witch is the mini-din
green
For a monitor? There are several. Most common is the VGA cable. DVI, or even HDMI are possible with better graphics cards. S-Video is an option as well.
A PS/2 port is a mini-DIN connector. For more on mini-DIN ports, see this Wikipedia page: http://en.wikipedia.org/wiki/Mini-DIN_connector
lt
Very specifically, is the keyboard USB or PS/2 mini DIN port?
S-Video
The motherboard form factor AT only has the 5-pin AT keyboard connector built in.
S-Video
A DIN connector has a 5-Pin connector
5; 6 5 pins on DIN, and 6 on a PS/2. (pg. 312) I found it 5 or 6 too, but it was on page 364 of A+ Comp TIA