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In c. 1050 –771 BC, the south-pointing chariot was invented in ancient China. It was the first known geared mechanism to use a differential gear, which was later used in analog computers. The Chinese also invented a more sophisticated abacus from around the 2nd century BC known as the Chinese abacus. [citation needed]
Piriform Software Ltd. is a British software company based in London, owned since 2017 by Avast which itself became part of Gen Digital in 2022. The company develops cleaning and optimisation tools for Microsoft Windows, macOS and Android operating systems, including CCleaner, CCleaner Browser, Defraggler, Recuva and Speccy.
The first known computer algorithm was written by Ada Lovelace in the 19th century for the Analytical Engine, to translate Luigi Menabrea's work on Bernoulli numbers for machine instruction. [3] However, this remained theoretical only - the lesser state of engineering in the lifetime of these two mathematicians proved insufficient [ citation ...
OpenVMS V1.0 (First OpenVMS AXP (Alpha) specific version, November 1992) OS/2 2.0 (First i386 32-bit based version) Plan 9 First Edition (First public release was made available to universities) RSTS/E 10.1 (Last stable release, September 1992) SLS; Solaris 2.0 (Successor to SunOS 4.x; based on SVR4 instead of BSD) Windows 3.1; 1993 IBM 4690 ...
A 5¼" disk drive was available, along with a cassette storage system which used standard audio cassette tapes. Also available were a number of games, a color plotter which printed on 6 in (152 mm) wide paper tape, and a graphics tablet (the KoalaPad). A TV screen served as the monitor. The VIC-20 became the first computer to sell 1 million ...
However, the more able 8080 also became the original target CPU for an early de facto standard personal computer operating system called CP/M and was used for such demanding control tasks as cruise missiles, and many other uses. Released in 1974, the 8080 became one of the first really widespread microprocessors.
The first computer to use magnetic tape. EDVAC could have new programs loaded from the tape. Proposed by John von Neumann, it was installed at the Institute for Advance Study, Princeton University, Princeton, New Jersey, US. 1951: Australia CSIRAC used to play music – the first time a computer was used as a musical instrument. 1951: US
The first modern analog computer was a tide-predicting machine, invented by Sir William Thomson, later Lord Kelvin, in 1872. It used a system of pulleys and wires to automatically calculate predicted tide levels for a set period at a particular location and was of great utility to navigation in shallow waters.