1.1.Fundamentals of Computer Systems

A computer system is made up of hardware and software and it is capable of:

• data input-  using input devices
• data processing-  using a microprocessor, typically the Central Processing Unit(CPU)
• data outputs-  using output devices

It may also be capable of:

• data storage-  so data can be stored for later use
• data transmission-  so data can be transferred to another computer system

The basic model of a computer system is built on Inputs,Processes,Storage and Outputs.

Hardware refers to any component that has a physical presence ad can therefore be touched.They fit onto 5 different types:

• Input Devices-
• Processing Devices-
• Storage Devices-
• Communication Devices-
• Output Devices-