CPU · RUNNING
A3 service left
Process A
3 ticks of CPU service remaining
✓COMPLETED0
TIME0/ 20
←→ step space play
AT THIS TIME BOUNDARY · t=0
1A arrived and joined the ready queue.
2A was selected: first in FIFO order, with arrival at t=0. It runs until completion.
READY STATE
Ready queue
4 future processes · 0 waiting processes
HEADQueue emptyTAIL
CPU HISTORY
Execution timeline
20
ABCDEIdle