Operating System Core Concepts
Classified in Computers
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Operating System (OS)
Software that manages hardware resources and provides a high-level abstraction for the user.
Process
A program currently executing.
Multitasking System
An OS allowing multiple programs to run concurrently.
Multiuser System
An OS allowing simultaneous access for multiple users.
Command Interpreter (Shell)
A user interface program that executes commands.
System Calls
Interfaces (APIs) used by programs to request services from the OS.
Single-Tasking System
Allows only one job in memory at a time. The CPU is idle during I/O operations, as it cannot be used by another process when the current one accesses system resources.
Time-Sharing System
Allows multiple terminals connected to a central computer. Enables multiple processes to use the... Continue reading "Operating System Core Concepts" »