The purpose of a computer is to be used.
Hardware examples include word processors, web browsers and utilities.
Computer systems can be found on calculators, watches and supercomputers
General purpose computers are designed for one task.
dedicated systems are designed to do one specific task
Examples of embedded systems:
Beds
Washing Machines
Tap
Microwave
Mop
Embedded systems are:
Easy to design because they only perform one task
Difficult to design because the one task they complete is detailed
Power supply, case cooling fan, CPU heat sink, CPU, Optical Drive, RAM, HDDs, graphics card and motherboard are all components of a computer