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Published byPamela Long Modified over 9 years ago
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স্বাগতম
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Junior instructor(computer)
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What is a computer? What is the weakness of computer?
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Topic in the presentation is Block diagram of a computer
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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
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Input Unite Arithmetic logic unit(ALU) CPU Output Unite MEMORY Block diagram of a computer
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This is the process of entering data and programs in to the computer system.
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Input device Mouse Scanner Keyboard
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Webcam Microphone Joystick
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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
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CPU Microprocessor
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Storage Unit: The storage unit of the computer holds data and instructions that are entered through the input unit, before they are processed.
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Harddisk RAM Portable harddisk
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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.
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Output device Monitor Speaker Ploter
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Printer Projector Line printer
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1.Is mouse a output device? 2.Write the abbreviation of ALU ?
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1.Draw a block diagram of a computer 2.List the name of input and output device of a desktop computer
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Next Topics: Types of computer
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