TAPI Telephony Application Programming Interface
By Microsoft (MICROSOFT) and Intel (INTEL) driven by a common API specification, will enable WINDOWS application, either directly or through a network (NETWORK) to control the phone-related equipment, such as a modem (MODEM), wearing a phone (HEADSET), Switch (PBX) and so on. TAPI goal is to establish a standard specification to control from a simple dial-up to the call center (CALL CENTER) of the control, operate on a similar specification NETWARE called TSAPI.

TCG Trusted Computing Group
Originally composed of TCPA organization (Trusted Computing Platform Alliance) technology giant restructured and renamed as TCG: Trusted Computing Group. Organization of the more original TCPA standards / development-oriented, more marketing structure of the new organization. TCPA specifications established by the Group will continue to become the core part of the TCG, in addition, the new group also increased the RAND (reasonable cum-equality) the license terms, as well as a symbol (logo) program. The new group also will make the future of technology, promote the expansion of the devices and applications.
Do not be divided into five founding members AMD, HP, IBM, Intel and Microsoft. While the other 10 manufacturers, which include: Nokia, Phoenix Technologies, Sony, etc. have also been applied to join.
The establishment of the new organization symbolizes industry, intends to push for the digital device to the hardware architecture-based security technology. Whether the next generation of chip or hardware, security features have become a major marketing tool. Future upcoming technologies, including Intel's LaGrande, VIA's Padlock, Phoenix Division send a Core Managed Environment, as well as the Transmeta chips under a Crusoe.

TCL Tool Command Language
A library can be applied (LIBRARY) extension of the literal programming languages (INTERPRETED PROGRAMMING LANGUAGE), usually used to develop a prototype program (PROTOTYPING) or CGI.

TCO (Total Cost of Ownership)
 Use a cost of IT products, the cost calculations include the use of hardware and software maintenance / upgrades, in-house staff training, and provide technical support consultant.
TCO full name is the total cost of ownership, mainly to provide consumers and enterprise managers in making procurement to assess the effectiveness of certain IT products, as well as direct and indirect costs. Finally the data presented by adding a variety of factors may reflect the actual purchase cost.
TCO analysis was first used from the Gartner Group began to take the lead, then gradually rise to several sets of different calculation methods and software tools. TCO analysis will extend to all costs are taken into account, these are collectively referred to as "full of the costs."
Consumers purchasing a computer, the full burden of costs will include the purchase price, maintenance, upgrades, etc.; corporate procurement of computer, the full burden of costs including service and support, networking, security, staff training, software licenses and so on. TCO is usually longer and the ROI (return on investment) and TBO (wholly owned strengths) for comparison, we can see that the procurement is feasible.