John V Atnasol
arithmetic machine
ENIAC , the first Electronic computer was made by some programmers in the U.S Army, if you are talking about the first calculating machine then it was built by Charles Babbage
The first which built by Charles Babbage used as calculating machine rather than a computer machine, but the first electronic computer which made by the U.S Army was built to be used in some kind of military business.
The first electronic digital computer built was the ABC (Atannasof Berry Computer), from 1937 to 1942. It was a special purpose machine designed for the sole purpose of solving systems of simultaneous equations having up to 29 variables. It was one of the first calculating devices to use binary number representation (50 bit words). It was the first calculating machine to use dynamic memory requiring refresh (capacitors), to separate arithmetic circuits from memory circuits, and to do array/vector processing (30 word arrays/vectors processed in parallel). It was a little bit bigger than an office desk.
he filed the patent for his first calculating machine in 1885 then improved one in in 1892
Modern electronic calculators are small, digital, and usually inexpensive devices to perform the basic operations of arithmetic. Before we had calculators we had slide rules. In 1632, the circular and rectangular sliderule was invented by W. Oughtred. In 1885, Burroughs filed his first patent for a calculating machine. However, his 1892 patent was for an improved calculating machine with an added printer. William Seward Burroughs invented the first practical adding and listing machine.
The very first calculating "machine" was human hands and fingers. The abacus was next in about 300 BC.
Theodore Simpson built the first automatic calculator called the "Calculating Clock" in 1623. Another machine was built by French Mathematician Blaise Pascal in 1642. However , it was William Seward Burroughs who received the first patent for adding machines in August of 1888.
abacus
ibligo
nobody built a time machine yet but nothing is impossible you could be the first to do so
Electronic voting machines were first introduced in Kerala.