EECS 1520 Study Guide - Final Guide: Structured Programming, Arpanet, Lotus 1-2-3

• School: York University
• Department: Electrical Engineering and Computer Science
• Course: EECS 1520
• Professor: Gerald Goldberg

Document Summary

Computer hardware: collection of physical elements making up machine and related pieces: boxes, circuit boards, chips, wires, disk drives, keyboards etc. Computer software: collection of programs that provides instructions that computer carries out. Each later has specific role in design of system. Innermost: the way we represent information on the computer (managed by binary digits of 1 and 0) We can manage about 7 pieces of information in short-term (cid:373)e(cid:373)o(cid:396)y at o(cid:374)e ti(cid:373)e (cid:272)alled (cid:862)mille(cid:396)s. Abacus: instrument to record number values for basic arithmetic. Blas pascal: built and sold machines, which performed addition and subtraction. Gottfried wilhelm von leibniz: built first mechanical device to do addition, subtraction, multiplication and division. Joseph jacquard: jacquards loom, punched card. (first to make important form of input) Charles babbage: analytical engine, first to include memory so that intermediate values do not have to be re-entered. William burroughs: produced and sold mechanical adding machine.