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What Is A Computer ?

Computer is a device composed of hardware and software. Computer is an electronic device that used to manipulate information or data. Computer has ability to store and process data. The computer can solve more than one kind of problem and it's used to help human work such us typing documents, sending email, surfing the internet, managing or handling spreadsheets, database, presentations, games, etc.
3 important components :
Hardware
Hardware is physical components that make up a computer system. There are many kinds of hardware that can be installed and connected to the computer. Some common computer hardware components in modern computer case:
  • CPU 
  • Monitor/Screen
  • Keyboard
  • Mouse
  • Hard drive
  • Memory etc
Software
Software is machine instructions that directs a CPU (computer's processor) to do specific operations. Software is computer instructions or data. data can be process on software and stored electronically on storage device. Software is divided into two categories.  Systems software and Application Software. System software manage the computer resources includes the operating system and utility programs. Systems software includes compilers, loaders, linkers, and debuggers. Operating system is base software to connect user and hardware. Applications software includes many kind of programs that do work for users and designed for an end user. Such us  word processors,  Accounting program, etc.
Brainware

Brainware is the user who operate, use the computer. Basically, the user must know how to use mouse, keyboard and basic function of computer.

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