Input and Output devices- Class 9

User communicates with a computer with the help of which devices?

• (1) Input Devices

• (2) Output Devices

• (3) Software Devices

• Both (1) and (2)

Answer explanation

Input-output device feeds data into and accepts data from a computer.

What is usually held in the contents of RAM?

• BIOS and Boot sequence needed to start the computer
• Operating System and currently running programs
• Software programs stored within the computer
• Recently executed instructions in case they are needed again

_______ printer is gives best quality of print out.

• dot matrix

• laser

• inkjet

A computer is an ____ device.

• electric

• electronic

• analog

• energetic

What provides long term memory for your computer

• hard drive

• soft drive

• disk drive

• RAM

The pace of the system clock is called the _____

• Bits

• Clock speed

• CMOS

• Megahertz

___________ stores data temporarily for quick access by the CPU.

• RAM

• ROM

Storage media that consists of a flat, round, portable disc made of metal, plastic, and lacquer that is written by laser

• Magnetic disc

• Magnetic disk

• Optical disc

• Optical disk

identify the picture.

• A scanner

• compact disk

• A printer

• A reader

Drum printer is a _________ ______