Arvind joshi sharma

       Full form of CPU

Central Processing Unit

                                                                Full form of WWW

World Wide Web

                                                                Full form of ALU

Arithmetic Logic Unit

                                                                Full form of GUI
Graphic User Interface

                                                                Full form of LAN

Local Area Network

Graphical User Interface

                                                                Full form of Computer
C = Commonly

O = Operating

M = Machine

P = Particularly

U = Used for

T = Training

E = Education

R = Research.