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- Closed System
- A system that is entirely self-contained and does not respond to changes in the environment. Most of this type of system eventually fail due to entropy.
- Collision
- Arises when two computers attempt to broadcast messages at the same time. The network protocols need to identify the situation and determine which machine will go first.
- Common Business-Oriented Language (COBOL)
- An early programming language designed to handle typical transaction processing tasks. Its death has been predicted for years, but it is hard to throw away billions of lines of code.
- Competitive Advantage
- Something that makes your company better or stronger than your rivals. Examples include lower costs, higher quality, strong ties to loyal customers, and control over distribution channels.
- Column
- A vertical part of a table that holds data for one attribute of an entity in a database or spreadsheet.
- Closed Loop
- A system or piece of computer code in which every step in a control mechanism is contained inside the system, and does not utilize external input.
- Cold Site
- A facility that can be leased from a disaster backup specialist. This type of site contains power and telecommunication lines but no computer. In the event of a disaster, a company calls the computer vendor and begs for the first available machine to be sent to the this kind of site.
- Common Object Request Broker Architecture (COBRA)
- A model largely developed in the Unix community that will enable objects to communicate with each other across networks. In particular, it is designed to enable users to combine different data types from various software vendors into a single compound document. The data could reside on any server on the network.
- Command-line Interface
- A method of controlling the computer by typing commands. The user must generally memorize specific commands.Some people prefer this type of interface because it is faster to type one or two commands than to manipulate an image on the screen.
- Coaxial Cable
- A cable used to transmit data. Cable television is a widespread application. The inner cable is surrounded by a plastic insulator, which is surrounded by a wire mesh conductor and an outer casing. The wire mesh insulates the internal signal wire from external interference.
- Compound Document
- A document that incorporates different types of data: text, graphics, sound, and video. The different objects might be transmitted across a network to be included in a final document.