Internet marketing, also known as web marketing, online marketing, or e-marketing, is referred to as the marketing (generally promotion) of products or services over the Internet. iMarketing is used as an abbreviated form for Internet Marketing. wikipedia.org

Medical billing & coding is the process of submitting and following up on claims to insurance companies in order to receive payment for services rendered by a healthcare provider. The same process is used for most insurance companies, whether they are private companies or government-owned. wikipedia.org

A call centre or call center is a centralised office used for the purpose of receiving or transmitting a large volume of requests by telephone. wikipedia.org

Data mining is the process of discovering new patterns from large data sets involving methods at the intersection of artificial intelligence, machine learning, statistics and database systems. wikipedia.org

A data entry clerk, sometimes called a typist, is a member of staff employed to type data into a database using a keyboard. The keyboards used can often have specialist keys and multiple colours to help them in the task and speed up the work. wikipedia.org

Customer support is a range of customer services to assist customers in making cost effective and correct use of a product. It includes assistance in planning, installation, training, trouble shooting, maintenance, upgrading, and disposal of a product. wikipedia.org

Accounts receivable also known as Debtors, is money owed to a business by its clients (customers) and shown on its Balance Sheet as an asset. wikipedia.org