Ορισμός:

Ο Υπολογιστής είναι μία πολύπλοκη ηλεκτρονική συσκευή

που με τη βοήθεια του υλικού και λογισμικού, μας επιτρέπει την

αποθήκευση, ανάκτηση και επεξεργασία δεδομένων, ώστε να

εξάγουμε από αυτά, πληροφορίες.

Comput er

Basic operations of a computer

Input OutputProcess

Storage

is an electronic device which capable of storing, retrieving, and process data

into a meaningful information

What is a computer?

Parts of computer•Monitor

•System Unit•Keyboard

•Mouse•Printer

Types of Computer•Microcomputer•Minicomputer

•Mainframe

HardwarePhysical parts of a computer

Peripherals I/OInput and output devices

Input DevicesKeyboard

MouseLight PenJoystickScanner

Bar Code ReaderDigital Camera

Webcam

Output DevicesMonitorPrinterPlotter

ProjectorSpeakers

•Input: enters data

•Process: process/manipulate data

•Output: produce information

Application SoftwareSoftware programs that perform specific tasks

System SoftwareSet of programs that allow the hardware

And application programs to work

SoftwareA set of instructions, tells computer

what to do