(ACE FOR 2024/2025 EXAM REVIEW) Operating Systems for Programmers WGU - C191. Questions and answers, 100% Accurate.

Operating Systems for Programmers WGU - C191. Questions and answers, 100% Accurate. OS - -a program that acts as an intermediary between a user of a computer and the computer hardware. Goals: Execute user programs, make the comp. system easy to use, utilize hardware efficiently. Computer system - -Hardware ↔ OS ↔ Applications ↔ Users (↔ = 'uses') resource allocator - -decides between conflicting requests for efficient and fair resource use control program - -Controls execution of programs to prevent errors and improper use of computer Kernel - -the one program running at all times on the computer Bootstrap program - -loaded at power-up or reboot. Stored in ROM or EPROM (known as firmware), Initialized all aspects of system, loads os kernel and starts execution I/O and CPU - -can execute concurrently Device controllers - -inform CPU that it's finished w/ operation by causing an interupt interrupt vector - -Interrupt transfers control to the interrupt service routine generally, through the _________, which contains the addresses of all the service routines disabled - -Incoming interrupts are _________ wh