স্বাগতম. Junior instructor(computer) What is a computer? What is the weakness of computer?

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Presentation transcript:

স্বাগতম

Junior instructor(computer)

What is a computer? What is the weakness of computer?

Topic in the presentation is Block diagram of a computer

At the end of this session, the learner will be Able to: Draw and explain a block diagram of computer Identify input device Identify output device

Input Unite Arithmetic logic unit(ALU) CPU Output Unite MEMORY Block diagram of a computer

This is the process of entering data and programs in to the computer system.

Input device Mouse Scanner Keyboard

Webcam Microphone Joystick

CentralProcessingUnit: The control unit and ALU of the computer are together known as the Central Processing Unit (CPU).TheCPUis like brain performs the following functions

CPU Microprocessor

Storage Unit: The storage unit of the computer holds data and instructions that are entered through the input unit, before they are processed.

Harddisk RAM Portable harddisk

OutputUnit: The output unit of a computer provides the information and results of a computation to outside world. Printers, Visual Display Unit (VDU) are the commonly used output devices.

Output device Monitor Speaker Ploter

Printer Projector Line printer

1.Is mouse a output device? 2.Write the abbreviation of ALU ?

1.Draw a block diagram of a computer 2.List the name of input and output device of a desktop computer

Next Topics: Types of computer