Basic Terminology & Definitions: System, kernel, shell, program, hardware, software, system software, user applications, elements of computing system, operating systems, main memory, secondary memory, system call, multiprogramming, multiprocessing, timesharing, uniprocessor system, multiprocessor systems, file, process, interrupt, batch processing systems

Operating System Objectives and functions, issues in resource management

Operating system Structure: Monolithic and layered structure, microkernel architecture, UNIX system architecture, block diagram of system kernel, OS design hierarchy, General structure of OS control tables, characteristics of     modern OS, SMP

Summary of System calls: System calls for process management, device management, file    management, time management, signaling, protection