Monday, October 25, 2010

terms 8

  1. Active-Matrix. The technology used in high quality computer monitors. Consists or diodes layed over a grid of ultra small wires. Transitors are used to keep it either on or off.
  2. Boolean. A logic used by computers to determine whether a statement is true or false. Made up of four main operators: AND, NOT, OR an XOR.
  3. Cluster. Can refer to two things- either a group of sectors on a disk, where it is used for organization and identification. It can also refer toa  group of connected computers, all performing similar functions. 
  4. Database. A data sctructure that stores information. Made up of linked tables and fields.
  5. Fiber-Optic Cable. A cable made up of transparent, glass like filaments. Light is sequenced through it, allowing for data to be transferred at the speed of light. When the computer recieves the fiber optic sequences it translates them.
  6. Cat 5. A type of cable, often used for connecting to LAN networks. If yor ona network, your most likely on a category 5 cable.
  7. HDMI. Stands for high deinition multimedia interface. A digital interface that allows for transfer of audio and video through a single cable. It is used in HDTVs, DVDs, digital cable boxes, video games, etc.
  8. ISDN. Stands for integrated services digital network. It is a much faster way of tarnsferring data that dial up modems, but new DSL technology is much faster and easier to maintain.
  9. Jumper. Made up of a piece of metal and two cabes. When the cables are connceted to the metal, the circuit is complete and the jumped is online. When the metal is disconnected, the circuit is not complete at the jumped is offline.
  10. Cloud. Refers to applciationsa and services that are offered over the internet.