reviews shortcuts
|
List of netowrking, wireless, broadband, satellite, telephony, general computing and other technical terms used throughout the site.
|
| All
| # | A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z | |
| Term |
Description |
| UAC |
UAC (User Account Control) is a Windows Vista/2008 feature intended to provide aditional security by reducing user access.
It is intended to prevent access to core Windows components, prompting the user for access to perform any administrative tasks.
As a result from UAC, local administrative accounts run as standard user accounts by default, with their administrative priviledges disabled until they attempt to run an application or task that requires administrative token. When attempting to start such applications, the user is prompted to consent to running the application with elevated priviledges.
Applications can be configured to always run as elevated, or UAC can be reconfigured from from Control Panel > User Accounts > Turn User Account Control On or Off.
See Also: How to change Vista UAC settings |
| UAC |
UAC (User Account Control) is a Windows Vista/2008 feature intended to provide aditional security by reducing user access.
It is intended to prevent access to core Windows components, prompting the user for access to perform any administrative tasks.
As a result from UAC, local administrative accounts run as standard user accounts by default, with their administrative priviledges disabled until they attempt to run an application or task that requires administrative token. When attempting to start such applications, the user is prompted to consent to running the application with elevated priviledges.
Applications can be configured to always run as elevated, or UAC can be reconfigured from from Control Panel > User Accounts > Turn User Account Control On or Off. |
| UDP |
UDP (User Datagram Protocol, RFC 768) is a communications protocol, an alternative to TCP (Transmission Control Protocol), and uses the Internet Protocol (IP) to actually get a data units (datagrams) from one network node to another.
UDP does not provide the service of dividing a message into packets (unlike TCP) and reassembling it at the other end. Specifically, UDP doesn't provide sequencing of the packets that the data arrives in.
UDP is a stateless protocol, meaning it doesn't acknowledge that packets being sent have been received. For this reason, the UDP protocol is typically used for streaming media, where a lost packet should not stop the transmission of data, or for simple applications where very little processing power is a requirement. TFTP (Trivial File Transfer Protocol) uses UDP as well. |
| UMTS |
UMTS (Universal Mobile Telecommunications System) is a third-generation (3G) broadband, packet-based data transmission technology with data rates up to 2 Mbps. UMTS is based on the GSM communication standard. |
| uncap |
Uncapping refers to the concept of somehow lifting the bandwidth cap many cable modem service providers (MSO's) impose. Some users want to do this in order to improve the speed of their cable modem, obviously circumventing the service provider and may be considered theft of service.
Some early pre-DOCSIS cable modems could be hacked to remove upstream limitations, however, those days are long gone.
Note that speed tweaks (changing TCP Receive Window, etc.) to improve speed are not considered "uncapping" and are absolutely legal way of fixing/tuning your OS to improve network performance. |
| Unicode |
Unicode is a 16 bit ISO 10646 character set. It can accommodate way more characters that ASCII, thus allowing for easier internationalization. |
| UPnP |
UPnP (Universal Plug and Play) is a standard that defines a connected environment, an automatic network of different, self-configuring devices, such as PCs, peripherals, wireless devices, and intelligent appliances. In a UPnP environment, all those devices would be able to configure themselves, aquire IP address automatically, announce their presense and location on the network (using HTTP), and be able to communicate using Internet and Web protocols. |
| upstream |
upstream (or upload, uplink) is a transmission from the end user to a server and downstream/download is a transmission toward the user. Data rate can differ in the downstream and upstream directions. |
| UTM |
UTM (Unified Threat Management) is a newer type of network security appliance, considered an evolution of the traditional firewall into an all-inclusive security product able to perform multiple security functions within one single device.
UTM is an all-inclusive network gateway that typically includes a firewall, gateway antivirus/anti-malware/anti-spam, web content filtering, IPS (Intrusion Prevention System), VPN, load balancing, and some type of data loss prevention. |
| UTP |
UTP (Unshielded Twisted Pair) is a popular standard cable that consists of pairs of unshielded wires twisted areound each other. UTP cabling is commonly used for Ethernet networks and telephone connections because of its low cost and ease of use. |
| Term |
Description |
|
| All
| # | A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z | |
|
|
|
