Comment by pavlov

Server programming in AppleSoft BASIC, as shown in the manual screenshot from the article:

  10 &WAIT
  20 &HOME:&PRINT"HELLO"
  30 FOR I = 1 TO 2000:NEXT
  40 &PRINT"BYE"
  50 &END

Counting to 2000 must have taken a few seconds in BASIC on the Apple II.