OS objectives, OS services, Kernel, Linux
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each of the black spaces below before clicking
on it to display the answer.
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| What is an Operating System? | >A program that controls the execution of
application programs
>An interface between applications and
hardware
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| What are the Operating Systems objectives? | >Convenience
>Efficiency
>Ability to evolve
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| What is Convenience? | Makes the computer more convenient to use
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| What is Efficiency ? | Allows computer system resources to be
used in an efficient manner
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| What is Ability to Evolve? | Permit effective development, testing, and
introduction of new system functions
without interfering with service
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| Whats the Layers of Computer System in order (top to bottom)? | 1. Application Programs
2. Utilities
3. Operating System
4. Computer Hardware
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| What is the layer of computer systems that end users use? | Application Programs
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| What is the layer of computer systems that programmers use? | >Utilities
>Operating System
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| What is the layer of computer systems that operating system designers use? | computer hardware
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| What are the services provided by the operating system? | >Program development
>Program execution
>Access to I/O devices
>Controlled access to files
>Memory management
>System access
>Network support
>Error detection and response
>Accounting
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| what are examples of program development services? | Editors
debuggers
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| What happens during error detection and response ? | Operating system cannot grant request of
application
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| what are the types of errors? | >Internal and external hardware errors
>Software errors
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| What are causes of Internal and External hardware errors? | >Memory error
>Device failure
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| What are causes of Software errors? | >Arithmetic overflow
>Access forbidden memory locations
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| What is accounting ? | >Collect usage statistics
>Monitor performance
>Used to anticipate future enhancements
>Used for billing purposes
>check out the log files of a unix system
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| What is the Operating System informal definition | >An OS is just a program that is executed
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| what is an operating system responsible for? | managing resources
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| What is a kernel? | >Portion of operating system that is in
main memory
>Contains most frequently used functions
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| What is another name of a kernel? | the nucleus
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| Why does an OS need to evolve? | >Hardware upgrades
>new types of hardware
>New services
>Fixes
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Created by:
ToriOverholtzer
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