Which of the following is also known as brain of computer?

A. Control unit
B. Central Processing unit
C. Arithmetic and language unit
D. Monitor

Examples of output devices are?

A. Screen
B. Printer
C. Speaker
D. All of these

A. Keyboard
B. Mouse
C. Card reader
D. All of these

Keyboard:

A computer keyboard is an input device that allows a person to enter letters, numbers, and other symbols (these are called characters in a keyboard) into a computer. … Using a keyboard to enter lots of data is called tyg. A keyboard contains many mechanical switches or push-buttons called “keys”.

Mouse:

A mouse is a small handheld input device that controls a computer screen’s cursor or pointer in conjunction with the way it is moved on a flat surface.

Card reader:

A card reader is a data input device that reads data from a card-shaped storage medium. … A memory card reader is a device used for communication with a smart card or a memory card. A magnetic card reader is a device used to read magnetic stripe cards, such as credit cards.

DOS stands for____________?

A. Disk Operating System
B. Disk operating session
C. Digital Operating System
D. Digital Open system

Unwanted repetitious messages, such as unsolicited bulk e-mail is known as_________?

A. Spam
B. Trash
C. Calibri
D. Courier

A self replicating program, similar to a virus which was taken from a 1970s science fiction novel by John Bruner entitled the Shockwave Rider is__________?

A. Bug
B. Vice
C. Lice
D. Worm

A fault in a computer program which prevents it from working correctly is known as___________?

A. Boot
B. Bug
C. Biff
D. Strap

A small or intelligent device is so called because it contains within it a________?

A. Computer
B. Microcomputer
C. Programmable
D. Sensor

A computer program that translates one program instructions at a time into machine language is called a/an___________?

A. Interpreter
B. CPU
C. Compiler
D. Simulator