Quick Pattern Recognition for Disk Scheduling
⚠️ Added for clarity (not directly from source)
- - FCFS: serve exactly in request order.
- - SSTF: always jump to nearest pending track.
- - SCAN: sweep to end boundary then reverse.
- - LOOK: sweep only till last request then reverse.
- - C-SCAN/C-LOOK: one-way servicing with jump back to start side.