the 5150 was much smaller — and less expensive — than its predecessors from two decades earlier. “The new IBM PC could not only process information faster than those earlier machines but it could hook ...

(Video embedded, below) As luck would have it, [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 ...