Operating Systems

📌 Topics

• Process
• Scheduling
• Deadlock
• Memory Management

📘 CPU Scheduling

Concept

CPU scheduling decides which process gets CPU time.

Types

• FCFS
• SJF
• Round Robin
• Priority Scheduling

Key Points

• SJF → Minimum waiting time
• Round Robin → Time quantum

PYQ

Which scheduling algorithm gives minimum average waiting time?
Answer: SJF

Quick Revision

FCFS → Simple
SJF → Optimal
RR → Time-sharing