Free Download Operating Systems Notes in pdf – Bca 3rd Semester. High quality, well-structured and Standard Notes that are easy to remember.
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Operating Systems Notes Unit 1 – 12
Unit 1: Operating System as a Resource Manager
An “Operating System” (OS) functions as a resource manager by efficiently managing a computer’s hardware and software resources.
Unit 2: CPU Scheduling
“CPU scheduling” is the process by which an operating system determines the order in which processes access the CPU for execution.
Unit 3: Memory Management
“Memory management” is a crucial function of an operating system that oversees the allocation, use and release of a computer’s memory resources.
Unit 4: File Systems
A “file system” is a method used by an operating system to organize, store, retrieve, and manage data on storage devices such as hard drives or SSDS.
Unit 5: Security and Protection
“Security and protection” in operating systems refer to mechanisms that safeguard the system’s data, resources and processes from unauthorized access, misuse or malicious threats.