Section 1- System architecture, Memory and Storage

What are computer systems made up of

Hardware

Software

Define hardware

The physical components that make up a computer

Define software

Any program that runs on a computer

List the components that all computer systems must have

CPU/ Processor

Input device

Output device

Memory/ Primary storage

Secondary storage

Define input device

Something that takes real world data and coverts it into a form that can be stored and processed by the computer

Define output device

A device that outputs data generated by the computer

What is memory/ primary storage used for

To hold instructions currently being executed and data that is being used

What is secondary storage used for

Long term storage of programs and data

Give 3 examples of input devices

Mouse

Keyboard

Microphone

Give 3 example of output devices

Monitor

Speaker

Printer

Give 3 examples of storage devices

Hard disk drives

Solid state drives

CDs

Explain Von Neumann Architecture

The idea of holding both programs and data in memory where data would move between the memory unit and the processor

Developed by Jon Von Neumann in the 1990s based on the concept of the stored program counter