Computer Knowledge MCQ-24

Digital photos and scanned images are typically stored as … graphics with extensions such as .bmp, .png, .jpg, .tif, or .gif.

(A) vector
(B) bitmap
(C) either vector or bitmap
(D) neither vector nor bitmap
(E) None of these

OCR stands for …….. .

(A) Optical Character Recognition
(B) Optical CPU Recognition
(C) Optimal Character Rendering
(D) Other Character Restoration
(E) None of these

Which device is used as the standard pointing device in a Graphical User Environment ?

(A) Keyboard
(B) Mouse
(C) Joystick
(D) Track ball
(E) None of these

Which of the following is not an output device ?

(A) Plotter
(B) Printer
(C) Monitor
(D) Touch Screen
(E) None of these

The arrow keys can be used to ……

(A) delete text
(B) move the cursor in the text that has already been entered
(C) save the document
(D) move the cursor while deleting text
(E) None of these

What is a keyboard used for ?

(A) Input text and numbers and send commands to the computer
(B) To create new keys to use with your computer
(C) To open the computer up
(D) To create pictures and images and send them to your computer
(E) None of these

What are the speakers attached to your computer used for?

(A) Displaying images
(B) Sending messages
(C) Storing messages
(D) Handling sound and music
(E) None of these

The mouse … usually appears in the shape of an arrow,

(A) indicator
(B) marker
(C) meter
(D) pointer
(E) None of these

The most common storage device for the personal computer is the …

(A) floppy disk
(B) USB thumb drive
(C) zip disk
(D) hard disk drive
(E) pen drive

Which of the following could be digital input devices for computers ?

(A) Digital camcorder
(B) Microphone
(C) Scanner
(D) All of the above
(E) None of these

A sales clerk at a checkout counter scanning a tag on an item rather than keying it into the system, is using …

(A) input automation
(B) item data automation
(C) scanning automation
(D) source data automation
(E) None of these

If you open a menu and then decide you don’t want to select an option after all, click the menu title again or press the … key to close the menu.

(A) Shift
(B) Tab
(C) Fl
(D) Esc
(E) None of these

A key that will erase information from the computer’s memory and characters on the screen ………

(A) edit
(B) delete key
(C) dummy out
(D) trust key
(E) esc key

The most frequently used piece of hardware for inputting data is ……..

(A) keyboard
(B) floppy disk
(C) cursor
(D) software
(E) hardware

Typical acronym of reusable optical storage will be

(A) CD
(E) None of these

Storage which stores or retains data after power off is called—

(A) Volatile storage
(B) Non-volatile storage
(C) Sequential storage
(D) Direct storage
(E) None of these

Data gathering in computer means, they allow to use……

(A) Present
(B) Input
(C) Output
(D) Store
(E) None of these