What is a computer

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 Computer is an electronic mechanical device which is capable of accepting the data, storing the data & processing on that for the giving the output result in the desired format.

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Windows Shortcuts

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F1 Display Help. Ctrl + C (or Ctrl + Insert) Copy the selected item. Ctrl + X Cut the selected item. Ctrl + V (or shift + Insert) Paste the selected item. Ctrl + Z Undo an action. Ctrl + Y Redo an action. Delete (or Ctrl + D) Delete the selected item and move it to the Recycle Bin. Shift + Delete Delete the selected item without moving it to the Recycle Bin first. FZ Rename the selected item. F3 Search for a file or folder. Alt + Enter Display properties for the selected item. Alt + Tab Switch between open items.
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Introduction

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 A computer is a programmable machine designed to perform arithmetic and logical operations automatically and sequently on the input given by the user and gives the desired output after processing. Computer components are divided into two major categories namely hardware and software. Hardware is the machine itself and its connected devices such as monitor, keyboard, mouse etc. Software are the set of programs that make use of hardware for performing various functions.
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