T-1 (also T-2, T-3):
Commercial connections to the Internet. T-1 connections offer approximately 25 times the bandwidth of 56.6 Kps telephone modems.

Tag:
A code within a data structure that gives instructions for formatting or other actions. HTML documents are set up using HTML tags, which serve various functions, such as controlling the styling of text and placement of graphic elements and providing links to interactive programs and scripts.

T & E Card:
Travel and entertainment card issued by a private, non-bank company that deals directly with the cardholder and the merchant and typically requires full payment on a monthly basis.

Terminal:
An end-use device (usually with display monitor and keyboard) with little or no software of its own that relies on a mainframe or another computer (such as a PC server) for its "intelligence." A variation of this kind of terminal is being revived in the idea of the thin client or network computer. The term is sometimes used to mean any personal computer or user workstation that is hooked up to a network.

T & E Merchant:
An airline, lodging, restaurant or card rental company whose main function is to provide travel/entertainment related services.

Terminal Based:
A system that captures credit card transactions and holds them until settlement.

Terminal Capture:
Type of software in which transaction information is stored in software, not at the host computer. Merchants using terminal capture must initiate SETTLEMENT at the end of each day or shift. Compare to HOST SETTLE.

Terminated Merchant File (TMF):
A file listing the names of merchants and their principals whose bankcard relationship has been terminated by the acquirer.

Thin Client:
A simple client program (not required to know how to interpret and display objects much more complex than menus and plain text ) or hardware device that relies on most of the function of the system being in the server.

Third Party Processor:
A non-member agent, employed by an acquiring bank, which provides authorization, settlement, and merchant services to a merchant.

Ticket Size:
The monetary value of an order placed by credit card.

Transaction:
Action between cardholder and merchant that results in activity on a cardholder account.

Transaction Date:
The actual date on which a transaction occurs.

Transaction Fee:
A per transaction charge incurred by merchants. This is in addition to the percentage DISCOUNT fees.

Transaction Fees:
Service fees charged to the merchant on a per transaction basis.

Truncation:
An anti theft mechanism in which the complete credit card number and expiration date does not appear on the sales receipt. The last four digits of the credit card number will appear on the sales receipt.

Turnkey Application:
Software that requires little or no modification when inserted into a Web site. In e-commerce, many MAPs (merchant account providers) and ISOs offer turnkey applications for processing credit card orders online.