I'm so old I remember when the internet didn't have commercials.
@kibcol1049 I remember dialup to connect to an ad free internet, worse than that I remember punch cards .
@harrymuzz At my first job, the computer room temperature was controlled with double door air lock to enter. The computer was huge with punch card operators typing and huge floor to ceiling reel to reel tapes. The print outs were on large sheets of paper and took several runs for all the errors to be corrected. With programmers, inputters and clerks, there were about 8 staff. Nowadays a kid of 8 or 9 could do it all and more on a smartphone and 30 times quicker! Hard to believe but true.
@kibcol1049 @harrymuzz and if you went into the computer room (normally only to show a visitor round and impress them) you had to put a drawing pin into a cork board at the door, one for each person. So that in the event of a fire and the room being flooded with halon gas, they would know that there were unconscious people inside needing rescued quickly.
@outinthehills @kibcol1049 @harrymuzz
Really? I just read a murder mystery that included halon gas in a computer room in its plot. I thought it seemed far fetched, but what do I know. 🙃
@Barbramon1 @outinthehills @kibcol1049 @harrymuzz Halon gas in computer rooms was real. If the klaxon goes off you'd better hold your breath as you get out.

@TimWardCam @Barbramon1 @outinthehills @kibcol1049 @harrymuzz

Totally real concern, we didn’t remove the Halon system where I worked until late-1990s. The DEC minicomputer cost more than the building and had to be protected! (Was still running the original COBOL too…)

I think they got a SUN UNIX box and replaced it around Y2K.

@Barbramon1 @outinthehills @kibcol1049 @harrymuzz

Ah, "The Grid" by Philip Kerr.
AKA "The Tower (1985) , but as a book."

@wakame @outinthehills @kibcol1049 @harrymuzz It was a Michael Connelly mystery. The title escapes me at the moment. Have been reading a lot of Connelly.
@Barbramon1 @outinthehills @kibcol1049 @harrymuzz I saw that plot-line updated recently, with an energy efficient house being used as a murder weapon.