You had lights & Switches? You wus lucky............

We had to write it down on pre-printed paper and give it to the girls to punch the tape and wait a week to find the mistakes. Ours usually. In 1969 we had access to a mainframe with 16K of core (cf RAM now at 8 & 16 Gb) & we thought we wus luckky until 32K came along...........

Then in 1972 ish we got to program the old 8080 on a developement system with switches and a teletype and punched tape. I learned my first programming lesson in never letting go of the remainders when I found a simple first order filter couldn't get to the asymptote. With a capacitor & resistor the remainder remains on the capacitor, but with integers..................... you still have to carry the remainder for the next iteration. And you know, when I worked for Smiths Industries (aircraft instrumentation) they reported the same problemo and they were gobsmacked when I asked (in a fraction of a second) "what they did with remainder"!

Nothing new under the sun - is there?