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Computer - 7

Intranet: A private computer network that uses Internet protocols and network connectivity to securely share a part of an organisation's information or operations with its employees

Extranet: A network or internetwork that is limited in scope to a single organisation or entity but which also has limited connections to the networks of one or more trusted organisations

Personal Area Network(PAN): A computer network used for communication among computer devices close to one person

Local Area Network(LAN): A network covering small geographic area, like a office or a building

Wide Area Network(WAN): A network covering relatively broad geographic area(i.e one city to another, one country to another)

Network Topology: Signifies the way in which intelligent devices in the network see their logical relations to one another

Ethics: Core values essential to acceptable online behaviour

Copyright: Exclusive right to produce or reproduce, to perform in public, or to publish an original literary or artistic work

Hacking: An act of penetrating computer systems to gain the knowledge about the system and how it works

Crackers: People who try to gain unauthorised access to computers

Economic Terms and their Meaning

Demand

According to Prof.Benham "Demand for anything, at a given price is the amount of it which will bought per unit of time at that price"

Kinds of Demand
Price Demand, Income Demand and Cross Demand
Demand Schedule
A tabular statement of price-quantity relationship
Demand Curves
Graphical representation of demand schedules
Law of Demand

According to Dr.Marshall, "the amount demanded increases

with a fall in price and decreases with a rise in price"

Supply
The quantity which a seller is prepared to sell at a given price and at a given time
Supply Curve
The relationship between market prices and the amount which producers are prepared to bring to the market
Law of Supply
The relationship between the price of a commodity and its supply
Production
The process of creating various goods and services, which are consumed by the people of the country
Main Factors of production
Land, Labour, Capital and Entrepreneur