The computer comes from the Latin Computare which means counting (in English to compute with the same meaning). A computer is an electronic device or machine that can be programmed to receive data and process it into useful information. Data processing using computer also known as Electronic Data Processing (PDE) or Elektronic Data Processing (EDP). In order to be used to process data into useful information, a computer system must have elements consisting of hardware (hardware), software (software), and human (humanware / brainware).
Computer hardware (hardware) is the equipment on a computer system that is physically visible and touchable. Computer software (software) is a program that contains commands to perform data processing.
This software consists of three types / sections namely: System software or commonly called the operating system (operating system) that controls how the computer works. Such as setting the configuration and control the use of computer memory, monitor, disk drive, keyboard, mouse, printer, and others.
Human (humanware / brainware) is the person involved in operating and managing computer systems. This Brainware may consist of; Computer Operator, which is in charge of the operation of the computer as a whole; Data Entry Operator, assigned for data input; Librarian, responsible for the storage and organizing of files and programs; Computer Programmer, assigned to manufacture program based on specification of system analyst; Network manager (system manager), responsible for the smoothness of the computer network system as a whole..
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