Os introduction
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The operating system acts as an intermediary between the user and computer hardware, executing programs and making the computer convenient to use. It controls and coordinates hardware resources like the CPU, memory and I/O devices among application programs for various users. Key functions of the OS include providing an execution environment through processes, files, interrupts and I/O, as well as error handling, protection, failure recovery, and managing resources like time, space, synchronization and accounting.
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Os introduction
- 2. Introduction Operating system is a program that acts as an intermediary between a user of a computer and the computer hardware. Operating system goals: 1. Execute user programs and make solving user problems easier. 2. Make the computer system convenient to use.
- 4. Hardware – provides basic computing resources (CPU, memory, I/O devices). Operating system – controls and coordinates the use of the hardware among the various application programs for the various users. Applications programs – define the ways in which the system resources are used to solve the computing problems of the users (compilers, database systems, video games, business programs) Users - (people, machines, other computers).
- 5. Functions of an OS •Execution environment - process management, file manipulation, interrupt handling, I/O operations, language. • Error detection and handling • Protection and security • Fault tolerance and failure recovery
- 6. Resource Management Time management Space management Synchronization and deadlock handling Accounting and status information