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A logical machine or logical abacus is a tool containing a set of parts that uses energy to perform formal logic operations through the use of truth tables. Early logical machines were mechanical devices that performed basic operations in Boolean logic .
Eventually, the concept of numbers became concrete and familiar enough for counting to arise, at times with sing-song mnemonics to teach sequences to others. All known human languages, except the Piraha language, have words for at least the numerals "one" and "two", and even some animals like the blackbird can distinguish a surprising number of items.
The history of computer science began long before the modern discipline of computer science, usually appearing in forms like mathematics or physics. Developments in previous centuries alluded to the discipline that we now know as computer science. [ 1 ]
A History of Computing in the Twentieth Century. Academic Press. ISBN 0-12-491650-3. {}: |author3= has generic name ; Nash, Stephen G., ed. (1990). A History of Scientific Computing. Addison-Wesley. ISBN 0-201-50814-1. (see also Herb Grosch's review inIEEE Annals of the History of Computing vol.15.1 1993) Norman, Jeremy M. (2005).
History of computing hardware (1960s–present) ... Open system (computing) P. ... History of programming languages; Programming Languages: History and Fundamentals ...
Timeline of computing presents events in the history of computing organized by year and grouped into six topic areas: predictions and concepts, first use and inventions, hardware systems and processors, operating systems, programming languages, and new application areas.
A Brief History of Computing, by Stephen White. An excellent computer history site; the present article is a modified version of his timeline, used with permission. The Evolution of the Modern Computer (1934 to 1950): An Open Source Graphical History, article from Virtual Travelog
The memory of the Atanasoff–Berry computer was a system called regenerative capacitor memory, which consisted of a pair of drums, each containing 1600 capacitors that rotated on a common shaft once per second. The capacitors on each drum were organized into 32 "bands" of 50 (30 active bands and two spares in case a capacitor failed), giving ...