Explain block diagram of computer

Introduction to Computer A computer can process data, pictures, sound and graphics. They can solve highly complicated problems quickly and accurately.

Explain block diagram of computer

They can solve highly complicated problems quickly and accurately. Computers need to receive data and instruction in order to solve any problem. Therefore we need to input the data and instructions into the computers. The input unit consists of one or more input devices.

Keyboard is the one of the most commonly used input device. Other commonly used input devices are the mouse, floppy disk drive, magnetic tape, etc. All the input devices perform the following functions. The storage unit of the computer holds data and instructions that are entered through the input unit, before they are processed.

It preserves the intermediate and final results before these are sent to the output devices. It also saves the data for the later use. The various storage devices of a computer system are divided into two categories. Stores and provides very fast.

This memory is generally used to hold the program being currently executed in the computer, the data Explain block diagram of computer received from the input unit, the intermediate and final results of the program.

The primary memory is temporary in nature. The data is lost, when the computer is switched off. In order to store the data permanently, the data has to be transferred to the secondary memory. The cost of the primary storage is more compared to the secondary storage. Therefore most computers have limited primary storage capacity.

Secondary storage is used like an archive. It stores several programs, documents, data bases etc. The programs that you run on the computer are first transferred to the primary memory before it is actually run.

Whenever the results are saved, again they get stored in the secondary memory. The secondary memory is slower and cheaper than the primary memory. Some of the commonly used secondary memory devices are Hard disk, CD, etc.

All digital computers use the binary system, i. Each character or a number is represented by an 8 bit code.

Block Diagram of Computer System | Components & Functions

The set of 8 bits is called a byte. A character occupies 1 byte space. A numeric occupies 2 byte space. Byte is the space occupied in the memory.

Explain block diagram of computer

The size of the primary storage in a typical PC usually starts at 16MB. The output unit of a computer provides the information and results of a computation to outside world. Other commonly used output devices are floppy disk drive, hard disk drive, and magnetic tape drive.

It also does comparison and takes decision. Whenever calculations are required, the control unit transfers the data from storage unit to ALU once the computations are done, the results are transferred to the storage unit by the control unit and then it is send to the output unit for displaying results.

It controls all other units in the computer. The control unit instructs the input unit, where to store the data after receiving it from the user. It controls the flow of data and instructions from the storage unit to ALU. It also controls the flow of results from the ALU to the storage unit.

The control unit is generally referred as the central nervous system of the computer that control and synchronizes its working. TheCPUis like brain performs the following functions: It is responsible for directing and coordinating most of the computer system activities.

It does not execute instructions by itself.Block Diagram of Computer System:: The Computer system consists of mainly three types that are central processing unit (CPU),Input Devices, and Output regardbouddhiste.com Central processing unit (CPU) again consists of ALU (Arithmetic Logic Unit) and Control Unit.

The set of instruction is presented to the computer in the form of raw data which . basic block diagram of computer ppt Binary is used in computers because its easy to regardbouddhiste.comomputer Block Diagram.

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John Von Neumann Block Diagram. John Von Neumann Model using a block diagram. John von Neumann Block Diagram John von Neumann Block Diagram John von Neumann is known as “The Father of the Computer” or subsequently as the “von Neumann architecture”.

Explain block diagram of computer

Block diagram of computer Block Diagram of Computer and its Explanation. Block Diagram of Computer. A computer can process data, pictures, sound and graphics. *InputUnit: Computers need to receive data and instruction in order to solve any problem. Storage Unit: The storage unit of the computer holds data and instructions.

COMPUTER ARCHITECTURE. BLOCK DIAGRAM OF A COMPUTER: Computer contains five basic units. 1) Memory Unit 2) Arithmetic Logic Unit (ALU) 3) Input Unit 4) Output Unit 5) Control Unit (CU) CENTRAL PROCESSING UNIT (CPU): CPU is the brain of a .

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