Which of the following is an opening of circuit board?
a) port
b) slot
c) both a & b
How many types of ports in computer systems?
a) three
b) four
c) five
d) six
Explanation: Serial Port, Parallel Port, PS/2 Port, USB Port, Fire Wire Port
A communication physical interface through which information transfer in or out one bit at a time is called….
a) serial port
b) parallel port
c) ps/2 port
d) USB port
How many pins are in serial port?
a) 9 pins
b) 25 pins
c) both a & b
d) 10 pins
What is the other name of parallel port?
a) COM
b) LPT
c) MOC
d) PTL
Explanation: COM stands for Communication Port
Which of the following devices are connected to computer by serial port?
a) modem
b) mouse
c) printer
d) all of these
