Glossary O & P

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• Peer-to-Peer Network:

  The computers on the network have equal status and can act as both servers and clients.
  Connection to the computers may be through a wireless access point as well as wired connections. The security data base for each computer resides on that computer.

  Click here for more detail. (Select the window close button to return).

  Port (software port):

  Is a virtual channel (data connection) through which data passes directly to program without first going to a temporary storage location (ie: a buffer).

  Click herefor more detail. (Select the window close button to return).

  Processes:

  Is a collection of computer resources used to execute an instance (occurrence) of a program.
  Comprises;

  - executable program code.
  - memory space.
  - pointers to system resources, files, communications ports, displays,
  keyboards, etc.
  - a unique identifier (process ID).
  - at least one thread of executing program code.

  Program:

  Is a static sequence of instructions, usually stored on a CD type disk or your hard drive.
  It contains a list of ingredients (variables) and a list of directions (statements) telling the computer what to do.
  A number of languages are used to create programs, but they must be translated into machine language before the computer can act on it.

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