Theme: Basic terms in it

Printer: Printer is one of the most commonly used output device which produces output in the form of a hard copy i.e. on the paper.

Ring Topology: In ring topology, each node is connected to another node in such a fashion that they form a ring structure. The data is transmitted in the form of tokens through the ring infrastructure.

Scanner: Scanner is used to input the data which works in a similar fashion as a photocopy machine does. It scans a full page with laser light but instead of printing copies, It transmits the image to the computer as digital code, which can be saved as a file.

Secondary Storage: Secondary storage is more permanent than main memory, as data and programs are retained when the power is turned off.

Server: The devices that assign the various resources for a network are called servers.

Simplex Mode: In simplex mode of communication, the data is sent in only one direction.

Software: Software is defined as a collection of computer programs that manages the functioning of a computer system.

Speaker: By means of speaker we can receive the information in terms of voice.

Star Topology: In star topology, each node is connected directly to a central device called hub. There is no direct communication link between the nodes. The nodes thus transmit the data only via hub.

Synchronous Mode: In synchronous mode of data transmission, at a time group of any number of bytes of data can be sent or received.

System Software: Software that manages the overall distribution and usage of hardware resources is called system software.

Topology: The topology defines the layout of the arrangement of various devices and peripherals involved in a network. By means of topology, it can easily be visualized how various components in a network are connected to each other.

Truth Table: The relationship between a function and its binary variables can be represented in the truth table.

Universal Automatic Computer (UNIVAC-I): It was the first digital computer designed in 1951.

Wide area network (WAN): Wide area network constitutes a geographical area which is even larger as compared to that of WAN. It facilitates the transmission of data over very long distances.