Title :
The Philips Computer PASCAL
Author :
Heijn, H.J. ; Selman, J.C.
Author_Institution :
Philips Res. Labs., N. V. Philips´´ Gloeilampenfabrieken, Eindhoven, The Netherlands.
fDate :
6/1/1961 12:00:00 AM
Abstract :
PASCAL is a binary parallel computer with a word length of 42 bits, a clock-pulse repetition time of 1¿ ¿sec, performing, on the average, 60,000 operations per second. Wired-in floating-point facilities are provided. Core storage is backed by a drum and by magnetic tape. There are modification versions for indexing as well as for stepping-up purposes. Special instructions include count and repeat instructions, jumps on the result of an earlier comparison, and two kinds of link instructions for facilitating the use of subroutines and interpretative programs. Transfer instructions enable a simultaneous bidirectional data flow between drum and cores or between tape and cores while computations are going on.
Keywords :
Circuits; Clocks; Computer aided instruction; Concurrent computing; Data flow computing; Indexing; Magnetic cores; Plugs; Registers; Switches;
Journal_Title :
Electronic Computers, IRE Transactions on
DOI :
10.1109/TEC.1961.5219187
