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The Manager of the Machine · Theory

Ch 2 · The Operating System's Jobs — card 1 of 2.

The operating system (OS) manages the computer's resources so programs can run. Its main jobs:

Memory management — deciding which program uses which part of RAM
Processor (process) management — scheduling which task the CPU runs next
File management — organising files and folders on storage
Device/peripheral management — controlling printers, disks, screens
Providing a user interface — a way for people to interact (GUI or command line)
Security — user accounts, permissions, passwords