ENIAC took ~1/3 of a second to compute a square root.
when and where computer first time inveted
The first time it was switched on
An operation which when performed multiple times, has no further effect on Its subject after the first time it is performed. - Nacolepsy
why are you asking what is the longest question ever asked when you could be spending time doing something better than sitting on the computer typing what is the longest question ever asked? How do you pronounce Taumatawhakatangihangakoauauotamateaturipukakapikimaungahoronukupokaiwhenuakitanatahu?
no but it was the longest and most complete at the time
No, it is not. It can perform an instruction fetch and data operation at the the same time and so, by definition, it is not.
It's difficult to determine the longest amount of time someone has stayed on a computer as this can vary greatly among individuals. However, prolonged computer use without breaks can lead to health issues such as eye strain, repetitive strain injuries, and mental fatigue. It is important to take regular breaks and practice good ergonomics when using a computer for extended periods of time.
aryabhatta
The Longest Time was created in 1983.
The Z1 Computer, the first actual programmable computer.
Ray Holt
1971