what is marketing?

Question

and also business administration, IT (Computer Science), marketing or accounting.
what are they?
do they pay alot?
what do they do?
help

Answer 1

Wikipedia expresses these terms far better than I, so I hope with these links you find the information you require.

Marketing is a social and managerial function that attempts to create, expand and maintain a collection of customers. It attempts to deliver demand satisfying output through profitable exchanges.

From:
http://en.wikipedia.org/wiki/Marketing
I have friends living on a property with avocado trees, they sell them at a stall on the roadside. They have many undersized avocados that no one ever wanted to buy. Their son made a big artistic sign calling them "Coctail Avocados". They now sell in a pack of four better than the larger ones!
THAT is marketing. They took a product that was not money-making (in fact, being wasted) and turned it into a big seller.

The term "management" characterizes the process of and/or the personnel leading and directing all or part of an organization (often a business) through the deployment and manipulation of resources (human, financial, material, intellectual or intangible).
Mary Parker Follett (1868-1933), who wrote on the topic in the early twentieth-century, defined management as "the art of getting things done through people"
From:
http://en.wikipedia.org/wiki/Business_administration

Information Technology (IT) is concerned with the use of technology in managing and processing information, especially in large organizations.
In particular, IT deals with the use of electronic computers and computer software to convert, store, protect, process, transmit, and retrieve information.
From:
http://en.wikipedia.org/wiki/Information_technology

Computer science, or computing science, is the study of the theoretical foundations of information and computation and their implementation and application in computer systems.
From:
http://en.wikipedia.org/wiki/Computer_science

Accountancy (profession) or accounting (methodology) is the measurement, disclosure or provision of assurance about financial information that helps managers, investors, tax authorities and other decision makers make resource allocation decisions.
Financial accounting is one branch of accounting and historically has involved processes by which financial information about a business is recorded, classified, summarized, interpreted, and communicated.
From:
http://en.wikipedia.org/wiki/Accounting

As to the pay; it is different within every organisation.
Often the salary has a package of other benefits included.
Here in Australia IT employees are usually well paid as most jobs require a university degree.

Answer 2

Check out Sales and Marketing Help website.
( http://salesandmarketinghelp.com )

Answer 3

advertising

Answer 4

convincing people they want what you have