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Welcome to the interactive glossay at Inside Computers. This glossary allows members of Inside Computers to post new definitions, allowing for collective information sharing.
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| U | Unicast :
A networking term for a packet which has a single specific target. The oposite of multicast.
Unified Memory Architecture (UMA) :
A feature used with some low cost or integrated video cards, where all video data including the frame buffers resides in main system memory. This is a severe bottleneck in performance because every frame the frame buffer has to be read, along with all of the textures for rendering. If the RAM is needed for other devices, than available bandwidth will be reduced producing very slow, and unstable frame rates.
Uniform Resource Locator (URL) :
The alias for IP addresses which are converted by DNS servers. They save the user from having to remember the IP address for servers, instead using a URL alias which is user friendly. Internic is responsible for all URL binds.
Universal Serial Bus (USB) :
A hot swappable connection interface which can connect up to 127 devices to one port. The USB 1.0 standard has 12.5MB of bandwidth which is shared between all of the connections. The USB 2.0 standard will increase bandwidth up to 480MB/sec making it more competitive with FireWire.
Unshielded Twisted Pair Cabling (UTP) :
Electrical signal wiring which consists of pairs of wires, a signal wire and a ground wire, which are twisted together to reduce the magnetic fields which are created when electrical signals pass through them. They are unshielded because, unlike coax cable, there is no metal casing around them for a ground.
User Friendly :
The term used to describe how easy and automated a software product is. Being user friendly usually means hiding the complexity and advanced processing from the user.
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