What is Computer?
Computer is a machine which converts data in to use full information. Data is a part of information. Data can be anything like numbers of cars in the city with different number plates. It can be age, sex, name weight, height, parts of a group of people.
We can also define the computer in terms of its functions. Following are the special functions of the computer
1.) Accept Data
2.) Store Data
3.) Process Data as Desired
4.) Process Data as Required
5.) Print The result in desired format.
Structure of the computer
The Basic Block Diagram of the computer is shown Below :
The computer performs five major operations
1.) It accepts data and instructions by the means of input devices,
2.) It stores data and information
3.) It processes the data according to the users instruction
4.) It provides the results in the form of output
5.) It controls all the operations inside it
Each block of the computer is explained below.
1.) Input
The process of giving or entering data or instruction to the computer is called input. The process of inputting raw data to the computer in order to process is called input.
2.) Control Unit
Control unit is the most important part of the computer. All the operations like input, output and processing is controlled by this part. It decides when to stop and start reeving data. It also decides when and where to store the data. It controls step by step operations inside the computer.
3.) Arithmetic Logic Unit
All the logical operations are performed by this unit. The mathematical operations like subtraction, addition, multiplication, division, logic and comparison all are performed by this unit.
The Arthematic Logic Unit and Control Unit of a computer system is collectively known as Central Processing Unit (CPU). CPU is also called the brain of the computer.
Computer is a machine which converts data in to use full information. Data is a part of information. Data can be anything like numbers of cars in the city with different number plates. It can be age, sex, name weight, height, parts of a group of people.
We can also define the computer in terms of its functions. Following are the special functions of the computer
1.) Accept Data
2.) Store Data
3.) Process Data as Desired
4.) Process Data as Required
5.) Print The result in desired format.
Structure of the computer
The Basic Block Diagram of the computer is shown Below :
The computer performs five major operations
1.) It accepts data and instructions by the means of input devices,
2.) It stores data and information
3.) It processes the data according to the users instruction
4.) It provides the results in the form of output
5.) It controls all the operations inside it
Each block of the computer is explained below.
1.) Input
The process of giving or entering data or instruction to the computer is called input. The process of inputting raw data to the computer in order to process is called input.
2.) Control Unit
Control unit is the most important part of the computer. All the operations like input, output and processing is controlled by this part. It decides when to stop and start reeving data. It also decides when and where to store the data. It controls step by step operations inside the computer.
3.) Arithmetic Logic Unit
All the logical operations are performed by this unit. The mathematical operations like subtraction, addition, multiplication, division, logic and comparison all are performed by this unit.
The Arthematic Logic Unit and Control Unit of a computer system is collectively known as Central Processing Unit (CPU). CPU is also called the brain of the computer.
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