Computer Knowledge Part 23

Light pen is frequently used in

PC stands for which of the following   

Laptops are also known as

Which of the following is not a function of operating systems   

A cratridge is associated with   

A gate which is also known as inverter is

The memory that requires contant refreshing , to preserve the information is called   

Convert the decimal number 255 to its hexadecimal equivalent

Can 16 a valid hexadecimal number

What is true about a Random Access Memory ?