understanding of computer

A. Definition of ComputerThe computer comes from latinComputare, which means a count, then in English disebutTo Computeyang mean count. So the computer is a tool used to calculate. The main function of a computer is to process the data. This process is called data processing melaluikomputer denganSistem Computerization.So from some of the above definition can be concluded that:The computer is a set of electronics that operate under a control system capable of processing data in accordance with the program, and can store and generate the desired information.B. Basic Computer ComponentsComputers generally consists of 5 parts. The components include:1. CPU (Central Processing Unit)In a computer the most important equipment for the processing of data known by the name of the CPU, the CPU is an IC (Integratet Circuit / processor), where the function of the IC or CPU is the Main Data Processing Center, this is all there is to be processed, controlled and calculated and eventually the data will be displayed through the output.In a CPU, there are 3 main parts:a. CU (Control Unit) functions to control data input and control data processing results.b. ALU (Aritmatic And Logical Unit) function to calculate the ratio, the logic.c. Memory is a place to store / recall data.In a CPU there are two kinds of memory:1). ROM (Read Only Memory)2). RAM (Random Access Memory)The parts that are outside of the CPU:a. Disk Drive / Floppy Drive, functions to process data stored in the floppy disk.b. Power function to make the process of turning on and off.c. Reset to make the process repeated reading of data from beginning to emerge a new worksheet. This process is known as the "Boot".d. CD ROM (Compact Disc Read Only Memory) tool is only found on a computer with Multimedia.2. Screen Monitor Output is equipment that serves display the results of a computer process.3. Printer Output is equipment that is used to print the results of data processing on paper (Hard Copy)there are 3 types of printers:a. Dot Matrix Printersb. Ink Jet Printerc. Laser Jet Printer4. Mouse, is the equipment used to help select the form of icon or menu command.5. Keyboard, which is an input device that is used for typing letters, numbers, symbols and commands.Devices on the computer, adaPerangkat InputdanPerangkat Output.Input Devices (Input Device) role is to pass information and commands us to a computer, among other things:1. Mouse2. Keyboard3. Modem and Network Card4. Scanner5. Multimedia InputOutput devices, output means the results of data processing, other Outputantara devices:1. Monitor2. Printer3. Speaker