| 释义 |
scratch pad
Also scratch-pad, scratchpad.
[f. scratch n.1]
1. A scribbling block. Also attrib. and fig. colloq. (orig. and chiefly U.S.).
1895Montgomery Ward Catal. Spring & Summer 111/2 Desk or Scratch Pads, made from white laid, smooth finish paper for pen or pencil. 1906Dialect Notes III. 155 Can you let me have a nickel to get a scratch-pad? 1931W. G. McAdoo Crowded Years xv. 220 He called it a ‘scratch-pad draft’..that..was not to be taken as final. 1939R. Chandler in Dime Detect. Fict. Aug. 48/1 The paper was from a scratch pad. It would have been very nice if it had had a message on it. 1960News Chron. 4 Feb. 6/4 Desk and telephone and scratch-pad and paper-clips. 1966Listener 9 June 838/3 A boy in bellbottoms lamented (or was it bragged?) he had a ‘scratchpad memory’. 1970‘W. Haggard’ Hardliners iii. 26 She struck out a line from her scratch-pad and the editor watched her. 1978W. F. Buckley Stained Glass xix. 190 Blackford sat on the couch and made motions requesting a scratch pad.
2. Computers. A small, very fast memory for the temporary storage of data or for indirect addressing of the main memory; usu. attrib.
1965Proc. Conf. Amer. Federation Information Processing Societies XXVII. i. 667/2 General-purpose commercial processors with scratchpad memories did not appear on the market until 1959. Ibid. 676/2 The magnetic core scratch⁓pad has an access limitation of one register per cycle. 1970O. Dopping Computers & Data Processing x. 135 The small, fast memory, which is well suited for data and instructions that are going to be used very often, is sometimes called a scratch pad memory. 1977Design Engin. July 77/2 It incorporates a 2k×8-bit mask-programmable read-only memory, a 64×8-bit scratchpad random-access memory, four 8-bit input/output ports and a binary timer. 1979Personal Computer World Nov. 83/2 The user program runs in a stack whose pointer is extracted from TGTSTK (FOFA in the scratchpad RAM). |