Computer Science 1032A/B Lecture Notes - Lecture 4: Microcomputer, Rotational Speed, Software

• School: Western University
• Department: Computer Science
• Course: Computer Science 1032A/B
• Professor: Louis Magguilli

Document Summary

The year 2000 problem (y2k problem: came about because computer memory was so expensive in the early days of computing. The first patent on a digital computer was filed on june 26, 1947: presper eckert and john mauchly who developed eniac computer. Complex and expensive; single person interacted with computer and only one program runs at a time. Moth found trapped between points at relay #70, panel f, of the mark ii aiken relay calculator while being tested at harvard university. Operators affixed the moth to the computer log. Put out word that machine"s been debugged , introducing the term debugging . Mainframes: first commercial digital computers: large/room-sized, used by business and government. First and second generation machines were often sold without software companies themselves would develop programs they wanted to use on the computer. Third generation introduced in mid-1960s included operating systems and multiprocessing.