+ I was still in high school, not even thinking about trading, but I remember how many ordinary folks were suddenly "rich" for no reason.
Here is a girl working on a teletype one of the KSR series, notice the two Ultronic's and the high speed 900 series ticker. (900 characters per minute) Those were the last ever ticker machines built. Oh and back in the days you had different tapes then in the mid 1970s and up you had the consolidated tape but you still had the last sale tape and the bid and ask tape.
This is what we used back in the day---- First was charting from newspaper quotes, next was following the ticker on FNN, and finally the quotrek and a leased quotron machine --- I use to trade options from this thing---- LOL !