Introduction of Computers
Introduction of Computers
What is Computer. Computer is an electronic machine, which accepts instructions, commands and information, based on the information process the given information at Ultra High Speed and produce the result on the screen and printer.
Qualities of Computer. Possess the following:- a. Ultra High Speed b. Accuracy c. Huge Capacity for Storage d. Decision Making Ability
Main Parts of Computers. Following are the main parts of Computers:- a. CPU (Central Processing Unit). b. Monitor / Screen. c. Key Board. d. Printer. (1) CPU. It is the brain of Computer. It is the main part of the Computer, which consists of following parts:-
CPU
ALU CONTROL UNIT MEMORY
(a) ALU (Arithmetic Logical Unit). This section of CPU process arithmetic and Logical operations. All calculations are performed and decisions are made in ALU. ALU does Arithmetic, i.e Division, Multiplication subtraction and addition . (b) Control Unit. It control all the flows of directions / commands / orders of the CPU. Also control the traffic of different Data flow, process them through appropriate location within the computing process. It also check the presence of IN PUT / OUT PUT units. (c) Memory. It is like brain which can store different information’s/instructions/programmes and execute them as directed. There are two kinds of memory:- i. RAM (Random Access Memory). (Temporary Memory). ii. ROM (Read Only Memory) (Permanent Memory).
Kinds of Computers. There are three kinds of computers being used friendly:- a. Digital. A computer which performs arithmetic, logical function i,e Division, Multiplication, Subtraction and Addition are called digital
What is Computer. Computer is an electronic machine, which accepts instructions, commands and information, based on the information process the given information at Ultra High Speed and produce the result on the screen and printer.
Qualities of Computer. Possess the following:- a. Ultra High Speed b. Accuracy c. Huge Capacity for Storage d. Decision Making Ability
Main Parts of Computers. Following are the main parts of Computers:- a. CPU (Central Processing Unit). b. Monitor / Screen. c. Key Board. d. Printer. (1) CPU. It is the brain of Computer. It is the main part of the Computer, which consists of following parts:-
CPU
ALU CONTROL UNIT MEMORY
(a) ALU (Arithmetic Logical Unit). This section of CPU process arithmetic and Logical operations. All calculations are performed and decisions are made in ALU. ALU does Arithmetic, i.e Division, Multiplication subtraction and addition . (b) Control Unit. It control all the flows of directions / commands / orders of the CPU. Also control the traffic of different Data flow, process them through appropriate location within the computing process. It also check the presence of IN PUT / OUT PUT units. (c) Memory. It is like brain which can store different information’s/instructions/programmes and execute them as directed. There are two kinds of memory:- i. RAM (Random Access Memory). (Temporary Memory). ii. ROM (Read Only Memory) (Permanent Memory).
Kinds of Computers. There are three kinds of computers being used friendly:- a. Digital. A computer which performs arithmetic, logical function i,e Division, Multiplication, Subtraction and Addition are called digital