Operating System Fundamentals and Process Management: Process Life Cycle (New, Ready, Running, Waiting, Terminate), CPU and Memory Virtualization, Process Control Blocks (PCB, TCB, Context-Switching), Multi-Programming, Scheduling Algorithms (SJF, SCTF, R

Operating System Fundamentals and Process Management: Process Life Cycle (New, Ready, Running, Waiting, Terminate), CPU and Memory Virtualization, Process Control Blocks (PCB, TCB, Context-Switching), Multi-Programming, Scheduling Algorithms (SJF, SCTF, Round Robin, Multi-Level Feedback Queues), Turnaround and Response Time Calculations, Threads and Concurrency, Direct vs Limited Execution, OS Policy vs Mechanism, Memory Management (Virtual Address Space, Physical Memory, Memory Protection), Stack and Heap Organization, File Systems and Device Drivers, Von Neumann Model, Persistence, Standard Libraries, and Efficient Utilization of Hardware and Software Resources for High-Performance Computing Environments Exam Questions Verified and Provided with Complete A+ Graded Rationales Latest Updated 2026 Process Life Cyle 1. New (Created) 2. Ready (Waiting to be assigned by scheduler) 3. Running (Processor execution) 4. Waiting (Waiting on user I/O) 5. Terminate (exit process) Operating System Controls and coordinates use of hardware among various applications and users. Serves as intermediary between user and hardware Goals of the Operating System 1. Execute user programs and make problem solving easier 2. Convenient use of machine 3. Use hardware in an efficient manner Hardware Provides basic computing resources: CPU, RAM, I/O Devices, etc... Application programs Defines the ways in which the system resources are used to solve the problems of the user Users People, machines, and other computers Bit Most basic memory unit Byte 8 bits Kilobyte(KB) 1024 bytes(2^10 bytes) Megabyte(MB) 1024^2 (2^10 KB)