Computer, we can define or we can say that it is an electronic device which work like human brain and called programmable devices. The main goal of this technology is, studying about structures of digital computers, digits, logics and symbols etc.
Input Unit: In this unit devices are connected externally to entering data into the computer. It is medium for making connection between user and interface. It transfer data, which is made by human being and make them understandable form for computers. Examples of input devices: Keyboard, mouse, scanner, card reader, OMR and OCR etc.
Central Processing Unit: It consist of three main parts
Memory: It is term, which is used in data storage, and also stored important information of data for future use and also transfer to another device when needed. We can say that it is primary type of storage or internal memory. Internal memory is executed through two types of memory technology
Arithmetic and logical unit: Arithmetic means process like addition, subtraction, multiplication & division and all these operation is done by Arithmetic unit. It solves any type of complex arithmetic operation. And in Logical part, all type of logical operations like comparing, selecting, etc. It have few storage for an example registers, and which are basically made-up of electronic circuits. Which having capacity to perform operations like addition, subtraction, multiplication etc.
Control Unit: It defines by controlling all operation of all parts of computer. It takes information from memory and determines where is to be taken. It gives result in the output form in memory section.
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