21.
Communication ports are found on the back of microcomputers. They are used to connect the computer to _____

22.
Which is considered a direct entry input device?

23.
In a computer system, which device is functionally opposite of a Key-board?

24.
The first firm to mass-market a microcomputer as a personal computer was

25.
The data appearing first in the left portion of punched card is

26.
Which one of the following is termed a combination input-output device?

27.
The process of writing computer instructions in a programming language is known as

28.
Which of the following is not true of a magnetic disk?

29.
A regular TV set can be hooked up to a computer so as to received computer signal instead of a television program. This hooking up is achieved with the help of a

30.
An output device that uses words or messages recorded on a magnetic medium to produce audio response is