How Computers Work Review

How many megabytes are in a gigabyte?

• 100

• 500

• 1000

• 1,000,000

Which tells the computer what to do, like open a file or play a game?

• Application software

• Operating system

• File manager

• Web browser

What is the role of the central processing unit (CPU) in a computer?

• It stores data permanently.

• It interprets and executes instructions.

• It provides power to the computer.

• It connects the computer to the internet.

What is the primary function of a disk cache?

• To increase internet speed

• To store data used often

• To delete unnecessary files

• To power the computer

What type of data can users enter as input?

• Text, images, and sounds

• Only text

• Only images

• Only sounds

What is the role of a scanner in input devices?

• To convert text into audio

• To convert images into digital format

• To store data permanently

• To execute programs

What is the function of emulating in computers?

• To delete files

• To copy another platform's system

• To create new software

• To increase processing speed

What is the role of RAM in a computer?

• To store data permanently

• To store temporary instructions and data

• To power the computer

• To connect to the internet

In an analog system, how does data vary?

• In fixed values

• Continuously in strength or quality

• In binary code

• In hexadecimal values

What are some characteristics of a digital system?

• Uses electricity and may be automated

• Requires manual operation

• Varies continuously in quality

• Uses mechanical parts