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Software timekeeping systems vary widely in the resolution of time measurement; some systems may use time units as large as a day, while others may use nanoseconds.For example, for an epoch date of midnight UTC (00:00) on 1 January 1900, and a time unit of a second, the time of the midnight (24:00) between 1 January 1900 and 2 January 1900 is represented by the number 86400, the number of ...
Apple Computer: Pascal 1986 PROMAL: C 1986 Erlang: Joe Armstrong and others in Ericsson: PLEX, Prolog 1987 Ada ISO 8652:1987: ANSI/MIL-STD-1815A unchanged Ada 83 1987 Self (concept) Sun Microsystems Inc. Smalltalk 1987 occam 2: David May and INMOS: occam: 1987 HyperTalk: Apple Computer: none (unique language) 1987 Clean
In computer programming languages, a switch statement is a type of selection control mechanism used to allow the value of a variable or expression to change the control flow of program execution via search and map. Switch statements function somewhat similarly to the if statement used in programming languages like C/C++, C#, Visual Basic .NET ...
The very first time a stored-program computer held a piece of software in electronic memory and executed it successfully, was 11 am 21 June 1948, at the University of Manchester, on the Manchester Baby computer. It was written by Tom Kilburn, and calculated the highest factor of the integer 2^18 = 262,144. Starting with a large trial divisor ...
An early proposal for a high-level programming language was Plankalkül, developed by Konrad Zuse for his Z1 computer between 1942 and 1945 but not implemented at the time. [ 7 ] The first functioning programming languages designed to communicate instructions to a computer were written in the early 1950s.
Helped establish and taught the first graduate course in computer science (at Harvard); invented the APL programming language; contributions to interactive computing 1801 Jacquard, Joseph Marie: Built and demonstrated the Jacquard loom, a programmable mechanized loom controlled by a tape constructed from punched cards 1206 Al-Jazari
The A-0 high-level compiler is invented by Grace Murray Hopper. April 1952: US IBM introduces the IBM 701, the first computer in its 700 and 7000 series of large scale machines with varied scientific and commercial architectures, but common electronics and peripherals. Some computers in this series remained in service until the 1980s.
This is an accepted version of this page This is the latest accepted revision, reviewed on 21 February 2025. English mathematician, philosopher, and engineer (1791–1871) "Babbage" redirects here. For other uses, see Babbage (disambiguation). Charles Babbage KH FRS Babbage in 1860 Born (1791-12-26) 26 December 1791 London, England Died 18 October 1871 (1871-10-18) (aged 79) Marylebone, London ...