Flashcards
Chapter 1
Cards in this deck (8)
- 1Operating System (Def)A program that acts as an intermediary between a user of a computer and the computer hardware
- 2Operating system goals:Execute user programs and make solving user problems easier
Make the computer system convenient to use
Use the computer hardware in an efficient manner - 3InterruptThe occurrence of an event is usually signaled by an
- 4Fxn of Interrupt1. os preserves the state of the CPU by storing the registers & program counter
2. Determines which type of interrupt has occurred & transfers control to the interrupt-service routine.
3. Interrupt architecture must save the address of the interrupted instruction. - 5Cachingcopying information from “slow” storage into faster storage system
ex: Main memory can be viewed as a cache for secondary storage - 6Device Driverfor each device controller to manage I/O
Provides uniform interface between controller and kernel - 7storage-device hierarchy
- 8—
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- Principles of OS Flashcards on Chapter 1, created by Erika Hairston on 08/03/2017.
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- Erika Hairston
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