What is environment ?

Meaning Of Environment

The word environment’ has been derived from the French word ‘environer’ meaning to encircle or to surround. The Dictionary meaning of the word ‘environment’ is a ‘surrounding’ ; external conditions influencing development or growth of people, animals or plants; living or working conditions etc.

definition

Environment may refer to the physical and biological factors along with their chemical interactions that affect an organism.

Primarily,the concern of all geographers is with the environment of man. But man cannot exist or be understood in isolation from the other forms of life and from plant life’

-(A.N. Strahler and A.H. Strahler,1976, p.4)

Environment refers to the sum total of conditions which surround man at a given point in space and time’

-(C.c. Park,1980, p.28)

Environment is defined more comprehensively by others “as a holistic view of the world as it functions at any point of time, with a multitude of spatial elemental and socio-economic systems distinguished by quality and attributes of space and mode of behaviour of abiotic and biotic forms’ -(K. R. Dikhshit, 1984)

Thus environment is defined as ‘(1)The circumstances and conditions (physical conditions) that surround (and affect) an organism or group of organisms , or  (2) the social and cultural conditions that affect an individual or community.Since human inhabit the natural world as well as the ‘built’ or technological, social and cultural world, all constitute parts of our environment’

-(W. P. cunnigham and M.A. Cunnigham, 2004)

By: সাদমান On 12:46 PM

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What is Computer ?

Computer

A device that computes, especially a programmable electronic machine that performs high-speed mathematical or logical operations or that assembles, stores, correlates, or otherwise processes information.

A computer is a general purpose device that can be programmed to carry out a set of arithmetic or logical operations. Since a sequence of operations can be readily changed, the computer can solve more than one kind of problem.

Conventionally, a computer consists of at least one processing element, typically a central processing unit (CPU) and some form of memory. The processing element carries out arithmetic and logic operations, and a sequencing and control unit that can change the order of operations based on stored information. Peripheral devices allow information to be retrieved from an external source, and the result of operations saved and retrieved.

The first electronic digital computers were developed between 1940 and 1945. Originally they were the size of a large room, consuming as much power as several hundred modern personal computers (PCs). In this era mechanical analog computers were used for military applications.

Modern computers based on integrated circuits are millions to billions of times more capable than the early machines, and occupy a fraction of the space. Simple computers are small enough to fit into mobile devices, and mobile computers can be powered by small batteries. Personal computers in their various forms are icons of the Information Age and are what most people think of as “computers.” However, the embedded computers found in many devices from MP3 players to fighter aircraft and from toys to industrial robots are the most numerous.

By: সাদমান On 1:40 AM

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