28 May
2015
28 May
'15
6:42 p.m.
On 05/28/2015 05:08 PM, js at cimmeri.com wrote:
Wow. Are common machines now really *billions* of
times faster??
From imb1401.info:
Thus, the average time to add two 10-digit numbers is 40 cycles, or
about a 2.2 kHz add rate. Adding two 20-digit numbers is 70 cycles, or
an add rate of 1.2 kHz. Compare that to a modern superscalar
microprocessor with a peak add rate of two 64-bit add instructions per
cycle at 3-GigaHertz, or an add rate of 6 Ghz; the modern microprocessor
is 6,000,000,000 / 1,000 = 6,000,000 times faster!
So, no, not for the common ones of today.
The surplus stores during the 1960s used to sell 1401-style SMS cards by
the crateful. I used to disassemble them for the transistors.
--Chuck