Introduction to Computer Systems

What does the Control Unit do?

• Retrieves and decodes program instructions

• Coordinates activities of all other parts of computer

What coordinates activities of all other parts of computer?

• Arithmetic & Logic Unit

• Control Unit

• Main Memory

• Secondary Memory

What is the smallest piece of memory?

• Bit

• Byte

• Address

• Word

What is the type of storage that is non-volatile?

• Main Memory

• Secondary Memory

• Cache Memory

• Registers

What is the function of input devices?

• To send information to the computer

• To store data

• To process data

• To display information

What is the address in memory?

• A unique number identifying each byte

• The size of the memory

• The speed of the memory

• The type of memory

Devices that send information to the computer from outside.

• Digital camera

• Keyboard

• Scanner

• Mouse

• Touchscreen

Programs that manage the computer hardware and the programs that run on them.

• Operating systems

• Utility programs

• Software development tools

Programs that provide services to the user.

• Word processing

• Games

• Programs to solve specific problems

What is the pseudocode?

• A cross between human language and a programming language.

• A type of machine language.

• A flowchart.

• A programming language.