Computer-Aided design CAD
)Acronym for computer-aided design. A CAD system is a combination of hardware and software that enables engineers and architects to design everything from furniture to airplanes. In addition to the software, CAD systems require a high-quality graphics monitor; a mouse, light pen, or digitizing tablet for drawing; and a special printer or plotterfor printing design specifications.
CAD systems allow an engineer to view a design from any angle with the push of a button and to zoom in or out for close-ups and long-distance views. In addition, the computer keeps track of design dependencies so that when the engineer changes one value, all other values that depend on it are automatically changed accordingly.
Until the mid 1980s, all CAD systems were specially constructed computers. Now, you can buy CAD software that runs on general-purpose workstations and personal computers.
- Computer-Aided Design and Drafting (CADD)
Acronym for computer-aided design and drafting. CADD systems are CAD systems with additional drafting features. For example, CADD systems enable an engineer or architect to insert size annotations and other notes into a design.
Acronym for computer-aided design/computer-aided manufacturing, computer systems used to design and manufacture products. The term CAD/CAM implies that an engineer can use the system both for designing a product and for controlling manufacturing processes. For example, once a design has been produced with the CADcomponent, the design itself can control the machines that construct the […]
Abbreviation of computer-aided engineering, computer systems that analyze engineering designs. Most CAD systems have a CAE component, but there are also independent CAE systems that can analyze designs produced by various CAD systems. CAE systems are able to simulate a design under a variety of conditions to see if it actually works.
Short for customer average interruption frequency index, in smart grid technology it is a measure of electricity reliability.
(1) Short for channel access method, a protocol for how data is transmitted in the bottom two layers of the OSI model. CAMs describe how networking systems put data on the network media, how low-level errors are dealt with, and how the network polices itself. Polling, contention and token passingare three examples of CAMs. (2) […]