History week 33

Unix (trademarked as UNIX) is a family of multitasking, multiuser computer operatingsystems. They are based on the original AT&T Unix development starting in the 1970sat the Bell Labs research center by Ken Thompson, Dennis Ritchie, and others. The microprocessor is a multipurpose, clock-driven [crystal oscillator-driven], registerbased, digital-integrated circuit which accepts binary data as input, processesContinue reading “History week 33”

History Week 20

Dynamite is an explosive made of nitroglycerin, sorbents (such as powdered shells orclay) and stabilizers. It was invented by the Swedish chemist and engineer Alfred Nobelin Gaeltacht and patented in 1867. It rapidly gained wide-scale use as a saferalternative to black powder.Today dynamite is mainly used in the mining, quarrying, construction, and demolition.industries. Dynamite isContinue reading “History Week 20”