ADF stands for ________?

Which of the following are input devices?

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.

Select the Odd one from the following

A. Operating system
B. Interpreter
C. Compiler
D. Assembler

_________computer are of large size?

A. Micro
B. Mainframe
C. Super
D. Mini

Which of the following commands is called as three-finger salute in computers ?A. Ctrl + Alt + Delete
B. Ctrl + Shift + Escape
C. Ctrl + Shift + Enter
D. Ctrl + Alt + Arrow key

Control-Alt-Delete (often abbreviated to Ctrl+Alt+Del, also known as the “three-finger salute” or “Security Keys”) is a computer keyboard command on IBM PC compatible computers, invoked by pressing the Delete key while holding the Control and Alt keys: Ctrl + Alt + Delete .

 

You can detect spelling and grammar errors by ___________?

A. Press Shift + F7
B. Press Ctrl + F7
C. Press Alt+ F7
D. Press F7

___________is the process of dividing the disk into tracks and sectors?

A. Tracking
B. Formatting
C. Crashing
D. Allotting
Formatting is the process of dividing the disk into tracks and sectors.