1. The Definition
2. It different Units
3. It Characteristics
4. It Functions
5. Ways of maintaining it, etc.
1. DEFINITION OF A COMPUTER SYSTEM
A computer is a programmable machine design to sequentially and automatically carry out a sequence of arithmetic or logical operations. The particular sequence of operations can be changed readily, allowing the computer to solve more than one kind of problem.
Conventionally a computer consists of some form of memory for data storage, at least one element that carries out arithmetic and logic operations, and a sequencing and control element that can change the order of operations based on the information that is stored. Peripheral devices allow information to be entered from external source, and allow the results of operations to be sent out.
A computer's processing unit executes series of instructions that make it read, manipulate and then store data. Conditional instructions change the sequence of instructions as a function of the current state of the machine or its environment.
But in a lower language, Computer can be define as an electronic device or machine that can accept data, access the data, process the data, and sent out information from the output unit
a. Input Unit
b. Output Unit
c. ………….