TriX wrote:
Yep, when I started at IBM in the mid 60s, we replaced a giant Univac vacuum tube computer at the Univ of N.C. with a 360 system that took up about 5% of the room (and got rid of most of the A/C plant which was almost as large). Today, I probably have a thousand x the compute power and storage on my phone (the 360 had 32 KB of core storage)
Back in the late 60s and early 70s I worked at Texas Instruments in Dallas. TI had a deal with IBM that TI would get the first of each latest machines. As I recall, in 1968 the IBM 360/?? we had enjoyed 4 MB of memory and was soon upgraded to 8 MB. With about 40,000 employees on site at the time (only several thousand engineers), turnaround time was "just" typically three days. Of course, the accounting department took priority on run scheduling! FWIW, in 1971 and after much fighting with the Computer Dept., I was allowed to install a CDC terminal in my work area and my group then enjoyed 10-30 minute turnaround. As I recall, the CDC network had CDC 7600 machines and was a bit faster than the IBM 360 we had ... but turnaround time was even far more important to us. At that time these machines could do perhaps about 35 MFLOPS. Today, FPGAs and GPUs can run at many teraFLOPS!