T568A
A legacy twisted pair standard that was used in commercial buildings and cabling systems that support data networks, voice, and video. It further defines cable performance and technical requirements.
T568B
A twisted pair standard that defines the standards for preferred cable types that provide the minimum acceptable performance levels for home-based networks.
TA (Terminal Adapter)
An external appliance or a plug-in card for a PC or compatible router that facilitates an ISDN (Integrated Services Digital Network) connection.
TCP (Transmission Control Protocol)
A protocol in the TCP/IP suite operating at the transport layer to provide connection-oriented, guaranteed delivery of packets.
Hosts establish a session to exchange data and confirm delivery of packets using acknowledgements. This overhead means the system is relatively slow.
TCP/IP Suite
(Transmission Control Protocol/Internet Protocol suite)
The network protocol suite used by most operating systems and the Internet. It is widely adopted, industry standard, vendor independent, and open.
It uses a 4-layer network model that corresponds roughly to the OSI model as follows: Network Interface (Physical/Data Link), Internet (Network), Transport (Transport), Application (Session, Presentation, Application).
telnet
OLD-OUTDATED BY SSH
TCP/IP application protocol supporting remote command-line administration of a host (terminal emulation). Telnet is unauthenticated and has therefore been superseded by SSH or graphical remote configuration utilities. Telnet runs over TCP port 23.
TFT (Thin Film Transistor) Active Matrix Display
The TFT display provides the best resolution of all of the currently available flat-panel Liquid Crystal Display (LCD) designs, although they are also the most expensive. TFT displays offer very high image clarity, contrast ratios of between 150:1 to 200:1, fast refresh rates, and wide viewing angles.
THD (Total Harmonic Distortion)
A sound measurement that is expressed as a percentage that compares input and output audio signals, which indicates the amount of distortion in the output signal.
thermal inkjet print method
Ink delivery system in an inkjet printer that uses thermal shock.
(An ink delivery system where the ink is heated to form a bubble that bursts through the nozzles)
thread
A stream of instructions generated by a software application. Most applications run a single process in a single thread.
throttling
Technology that allows the CPU to slow down if thermal output reaches a critical level or to improve power performance.
Intel's throttling technology is called SpeedStep; AMD's is called PowerNow!.
TLS (Transport Layer Security)
A security protocol that protects sensitive communication from eavesdropping and tampering by using a secure, encrypted, and authenticated channel over a TCP/IP connection.
tone generator and probe
The tone generator is an electronic device that sends an electrical signal through one set of UTP cables. The tone probe (or tone locator) is an electronic device that emits an audible tone when it detects a signal sent by the tone generator in a set of wires.
TPM (Trusted Platform Module)
Essentially, it functions as a smart card embedded on a motherboard.
A specification for hardware-based storage of digital certificates, keys, hashed passwords, and other user and platform identification information.
transfer unit
Roller, corona wire, or belt assembly that applies a charge to the media (paper) so that it attracts toner from the photoconductor. A detac strip then removes the charge to prevent paper curl.
tunneling
A tunneling (or encapsulation) protocol wraps up data from one protocol for transfer over a different type of network.
For example, PPP can carry TCP/IP data over a dial-up line, enabling a remote computer to communicate with the LAN.
TWAIN
Standard "driver" model for interfacing scanner hardware with applications software.
Type 1 hypervisor
Type 2 hypervisor
A bare metal hypervisor in which you install directly on the server's hardware.
A host-based hypervisor in which you install the host operating system first, then install the hypervisor.