DC 15 ï¼ D.C. Code Â§ 42-1904.02(b) Purchaser may cancel 15 days after the date of execution of. the contract for the disposition, or within 15 days after. delivery of the current POS, whichever is later.
We could argue that the first computer was the abacus or its descendant, the slide rule, invented by William Oughtred in 1622. But the first computer resembling today's modern machines was the Analytical Engine, a device conceived and designed by British mathematician Charles Babbage between 1833 and 1871.
1 1946 - ENIAC-World's first electronic, large scale, general-purpose computer, built by Mauchly and Eckert, and activated at the University of Pennsylvania in 1946. 2  ENIAC recreated on a modern computer chip.3  See an explanation of ENIAC on a Chip by the Moore School of Electrical Engineering, University of Pennsylvania. 1946 - ENIAC-World's first electronic, large scale, general-purpose computer, built by Mauchly and Eckert, and activated at the University of Pennsylvania in 1946. 2  ENIAC recreated on a modern computer chip.