Science and Technology in Pakistan  In Pakistan, science and technology serve as an important part of national politics, practices, and ext...

"COMPUTER ARCHITECTURE" Arrangements and connections of various components of computer system is called computer architecture. ...

"DISPLAY SCREEN"  Display screens are used for inputting the data or displaying the information after processing. "TYPES OF D...

"PLOTTERS" A plotter is used to produce high quality graphics in many colors and used for specialized applications such as archite...

POINTING DEVICES Pointing devices are use to control the position of the cursor on the screen. They included the following: 1:  Mouse 2: Poi...

COMPUTER A computer is a machine that can be programmed to accept data , process it into useful information and store it away for safekeepin...

DEFINITION OF  MODEM Modem is a device that converts digital signals into analog signals (a process known as modulation) to send over phone ...

                                            "MODES OF DATA COMMUNICATION" The way in which  data is transmitted from one location ...

NETWORK TOPOLOGIES In networking, the term network topology refers to a layout of connected devices on a network. One can think of a topolo...