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These 6 elements comprises a computer system
1. Hardware: It consists of the physical modules that make up a computer. Examples are: Processor, Monitor, Keyboard, Mouse etc. The primary function is to receive input commands.
2. Software: This refers to a set of programs that helps a computer perform basic tasks and commands as provided by user. Two main categories of software are: a) System software b) Application Software
3. People: This element comprises of individuals or users that communicate with the system by using software and hardware.
4. Data: The text, numbers and graphics are pieces of information and is known as data in computer parlance.
5. Procedures: It refers to those operations that are designed to be executed in an orderly manner to produce a desired result. It can be of three types: hardware oriented, software oriented and internal.
6. Connectivity: The way in which a computer system gets connected with other devices like phone, printer, modem etc. by different technologies such as internet, Bluetooth or Wi-Fi is called connectivity.
Distinguishing features of computer and manual system are:
1. Accuracy- Calculations and operations performed by a computer system is very accurate. Errors are detected due to wrong input of data or wrong command by user. In a manual system the results created by the humans are prone to more errors.
2. Speed- Computer performs calculation faster as compared to human brain. It executes task in a faster way than manual system.
3. Reliability: A Computer can work on any condition and are very reliable as compared to human beings.
4. Versatility: The computer is created with the purpose of performing variety of tasks simultaneously, whereas human beings cannot match that speed and versatility.
5. Storage: All computers are having storage capacity to store all the information and these information can be accessed anytime, anywhere. In manual system storage of documents is cumbersome and takes long time.