Back of a PC

Question 1

Onboard HDMI and DisplayPort:

Answer 1

For output to monitor

Question 2

USB:

Answer 2

For many input and output devices

Question 3

S/PDIF:

Answer 3

For higher end audio output

Question 4

DVI, HMDI, and DisplayPort:

Answer 4

For output to monitor

Question 5

PS/2 or mini-DIN:

Answer 5

For keyboard or mouse

Question 6

NIC:

Answer 6

for network connection

Question 7

Audio input/output jacks:

Answer 7

For speakers and microphones