| 释义 |
off-board, a. U.S.
[f. off- 4 b + board n. 8 c.]
Of stocks, bonds, etc.: dealt in or sold elsewhere than at the stock exchange; = over the counter adv. (a.) a.
1950in Webster Add. 1968Economist 6 Jan. 56/2 It is suspected in Wall Street that the agency's wily staff goes out of its way to prop up those offboard markets mainly to keep ‘sassy’ Wall Streeters off balance. 1977N.Y. Times 14 Nov. 53/4 Most brokerage and investment banking firms, however, agree that the eventual elimination of what are called ‘off-board trading restrictions’ is inevitable.
▸ That is not situated on board a vehicle, aircraft, etc.; external, remote.
1963Proc. 7th National Convent. Mil. Electronics (IEEE) 447/1 The number of suspensions [considered for a spacecraft motion simulator]..was reduced to five types... 2. Offboard wheel supported sphere. 1973Proc. IEEE 61 644/2 For transportation systems utilizing a large number of vehicles, off-board control systems enjoy a major advantage over on-board control systems. 1991R. A. Brooks in K. VanLehn Architectures for Intelligence viii. 231 Our first robot, Allen, had sonar distance sensors and odometry onboard and used an offboard lisp machine to simulate the subsumption architecture. 2003Aviation Week (Nexis) 3 Mar. 56 Much of the latter capability is due to the fighter's..ability to fuse information gathered by on and offboard sensors.
▸ Of a device: not forming an integral part of a computer, circuit board, etc. Also: relating to or derived from such a device.
1979Microprocessors & Microsystems 3 339 An audio tape cassette interface circuit and bus drivers for the address, data and control bus signals, and provision for off-board dynamic memory refresh. 1988Science 18 Mar. 1396/2 Each paired memory and processor are physically placed on the same printed circuit board... Cooperation is easily achieved by having all the processors operating in lockstep, performing symmetrical memory references when off-board data are used. 1991What Hi-Fi? Oct. 211/2 Most CD players and DAT players have DACs built-in but offboard DACs are also available as upgrades. 2003PC World (Nexis) 1 Jan. The 17 × 17cm EPIA mini-ITX board packs..10/100 Ethernet, USB2 and (with an offboard jack) Firewire. |