Computer

Parts of Computer Monitor Modem CPU DVD/CD rom Drive Speaker Printer Keyboard Mouse Head-Phone USB port Mother Board Hard disk Floppy disk Drive Pen Drive Web Cam          These device are divided into three types Input device, Output Device and Central Processing Unit.   INPUT DEVICE       Input device send commands to the CPU through the input device like keyboard, mouse etc. Keyboard Mouse Web Cam Speaker   OUTPUT DEVICE      Output device display the result through output device like monitor and printer after getting command and instruction though CPU. Printer Monitor Speaker Projector Head set CPU        It is the Center Processing Unit. It is the heart of the Computer. CPU is attached to the Mother board of Computer. and other peripheral also connect with Mother Board. Cpu is divided into three parts they are - 1) MU (Memory Unit) -       Ram and Rom are Memory Unit, The function of Memory unit is to saves data temporary and Permanently.   2) CU (Control Unit) -      Control Unit control the command and instruction through the input device and give output according to the command to printer and monitor.   3) ALU (Arithmetic and Logical Unit)       ALU unit works arithmetic +, -, ÷, × etc and logical =, <= >=< work into the computer.   Characteristics of Computer : Accuracy Speed Automatic Versatile Diligent Storage - Capacity of storage units are measures as following- 1 bit = 0.125 bytes 1 nibble = 0.5 bytes 2 nibble = 1 bytes 1 bytes = 1 alphabet or number 1 bytes = 8 bits 1024 alphabet or number without space = 1 kb   Application of Computer Education Banking Hotel Airlines Security Health Tele communication Industry etc

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