Main parts of a Computer System
Computers come in many varieties, from tiny Computers to very large super computers. But no matters how complex it is or how big it is, every Computer is part of a system. A complete Computer system consists of four main parts as follows.
- Hardware
- Software
- Data
- User ( Live ware)
Hardware
Computer hardware is a collective term used to describe any of the physical components of an analog or digital computer. The term hardware distinguishes the tangible aspects of a computing device from software, which consists of written, machine-readable instructions or programs that tell physical components what to do and when to execute the instructions.
Software
Software is a set of instructions, data or programs used to operate computers and execute specific tasks. It is the opposite of hardware, which describes the physical aspects of a computer. Software is a generic term used to refer to applications, scripts and programs that run on a device. It can be thought of as the variable part of a computer, while hardware is the invariable part.
Data
Data is a collection of facts, such as numbers, words, measurements, observations or just descriptions of things.
Data can be defined as a representation of facts, concepts, or instructions in a formalized manner, which should be suitable for communication, interpretation, or processing by human or electronic machine.
Data is represented with the help of characters such as alphabets (A-Z, a-z), digits (0-9) or special characters (+,-,/,*,<,>,= etc.)
User (Liveware)
Liveware is used to describe people that are responsible for working on the computer. They can be analysts or programmers. They are the computer user that works on the computer and are needed for it to work.
