Computer Systems Lesson 3 Revision

Which of these is not an input device?

• Scanner
• Screen
• Microphone
• Keyboard

An input is....

• Any data and instructions entered into the memory of a computer

• Unprocessed data

• Data that has been processed into a useful form.

• Any hardware component that allows users to enter data and instructions into a computer

A computer is an electronic device which takes IN data, _________ it and then OUTPUTS the result

• Processes
• Stores
• Deletes
• Copies

What does CPU stand for?

• Critical Processing Unit
• Core Processing Unit
• Common Processing Unit
• Central Processing Unit

The physical stuff that makes up the computer is called...

• Software

• Hardware

Programs that a computer system runs is known as....

• Software

• Hardware

Embedded systems are computers inside a larger system...examples of this...

• an aeroplane

• microwaves

• traffic lights

• dishwashers

The five parts to the CPU are:

• transistors, processing things

• Control Unit, Arithmetic Logic Unit, Cache, Clock, Buses

• Power supply, fan

• CU, ALU, Cache, Clock, Buses, Registers

The chap who came up with the design in 1945 that shows how computers work...

• Von Neuman

• Van Neumann

• Van Neuman

• Von Neumann

The CPU carries out instructions, one after another, billions of times a second is known as...

• The Fetch-Execute Cycle

• The Fetch-Decode-Execute Cycle

• The Fetch-Breakdown-Execute Cycle

• The Fetch-Breakdown-Sign out Cycle