IBM's second successful commercial computer (the first was the 650 ... There was no display screen. In 1960, IBM introduced the larger 1410 with 80KB of memory, which also ran 1401 programs.

[Oli] owns a 40-year-old IBM PC 5150 as well as the matching IBM 5151 monitor, so it was a simple matter to implement the effect in 8088 assembler to create falling sequences of characters.