Which of the following typically uses a keyboard for input?

What is backup?

Which of the following statements is true?

What is required when more than one person uses a central computer at the same time?

Computer Operators

Control Unit of a digital computer is often called the

The Santa Clara Valley, California is popularly known as Silicon Valley of America because

Which device uses much less computer time than the light pen and gives resolutions equal to that of the CRT display.