An electronic device that stores, retrieves, and processes data, and can be programmed with instructions. A computer is composed of hardware and software, and can exist in a variety of sizes and configurations.
Hardware
There are several components that work together to run your computer. Hardware are the devices/parts which you can touch and see such as your monitor, Keyboard, mouse etc.
Software
Software are programs which has set of instructions that get hardware working for you. Ex: Windows, MS Word, MS Excel
Below sub pages contains more coverage on computer basics.
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