| 释义 |
cursor|ˈkɜːsə(r)|
[a. L. cursor runner, agent-n. from currĕre, curs- to run: cf. courser.
The Latin word occurs in the title of ‘Þe tretis þat men cals Cursor Mundi’ (Gött. MS.), ‘The Cursur o the world’ (Cott. MS), of which it is said, l. 267,
Cursur [v.r. Cursor, Coarsur] o werld man oght it call,
For almost it ouer-rennes all.]
†1. A runner, running messenger. Obs.
[a1300: see above.] 1566T. Stapleton Ret. Untr. Jewel iii. 125 He went apace like a Cursor that telleth good news. a1632T. Taylor God's Judgem. ii. iv. (1642) 53 He also kept cursors and messengers..to ride abroad.
2. a. A part of a mathematical, astronomical, or surveying instrument, which slides backwards and forwards.
1594Blundevil Exerc. vii. xii. (ed. 7) 666 Every one of these Transames or Cursours must be cut with a square hole..so as they may be made to run iust upon the staffe to and fro. 1641W. Gascoigne in Rigaud Corr. Sci. Men (1841) I. 43 The lowest part of the cross is jointed, to separate it from the cursor on the ruler. 1736R. Neve City & C. Purchaser, Cursor, a little brass Ruler representing the Horizon: a Label. 1793Wollaston in Phil. Trans. LXXXIII. 139 The cursor, or moveable wire, in the micrometer-microscopes. 1874in Knight Dict. Mech.
b. A distinctive symbol on a VDU display (e.g. a flashing underline or rectangle) that indicates the position at which the next character will appear or the next action will take effect, and which is usu. under keyboard control.
1967Stotz & Cheek Low-Cost Graphic Display for Computer Time-Sharing Console (MIT Technical Memo.) 13 For graphical input, one would like to be able to move a pointer or ‘cursor’ over a stored picture and yet not store the image of the cursor. Ibid., The cursor on the screen ‘follows’ the motion of the ‘mouse’. 1972L. W. James in J. F. Slater Computer-Aided Typesetting 78/1 The cursor..can be moved vertically a line at a time or horizontally a character at a time to indicate the positions where we wish to make changes in the text. 1983Austral. Personal Computer Aug. 141/3 It can set the cursor to be visible or invisible, blinking or steady, block or underline. 1983Times 16 Aug. 16/6 Once the cursor has located the correct screen character a button on the mouse is pressed to execute the command. 1985P. Laurie Databases i. 13 In a word processor, for instance, Control F might mean move the cursor forward one character.
‖3. In mediæval universities, a bachelor of theology giving the courses of lectures upon the Bible which formed one of the necessary preliminaries to the doctorate.
4. Special Comb.: cursor (control) key, any of a set of keys on a VDU keyboard for controlling the movement of a cursor on the screen.
1979A. Cakir et al. VDT Man. i. 19 The cursor control keys are usually located in a separate block..on one side of the main keyset. 1981Electronics 8 Sept. 115 (caption) The cursor keys, right of center, choose menu parameters. 1984Which Micro? Dec. 20/3 With the cursor key cluster on the right, the Plus 4 looks very like an MSX computer. 1985Personal Computer World Feb. 145/2 The MZ-800..has an identical 69-key keyboard which features a standard qwerty layout, five function keys and a cluster of cursor control keys. 1986Your Computer Oct. 36/1 Using the cursor keys or a joystick, you can create your shape and then rotate, invert or produce a mirror image of it before saving it in the program files. |