Flashcards
Operating system concepts: processes, buffers, multitasking
Flashcards do conjunto (9)
- 1What jobs does an OS have?-executing application software
-managing resource allocation
-Deciding which physical location to store data
-Maintaining drivers
-Networking
-security - 2What is a batch system?Designed to carry out set tasks with little human input. eg updating bank details of millions of people
- 3What is a standalone system?A simple one device system with one user
- 4What is a multi-user systemThis allows multiple users to access system resources at the same time
- 5What is multitasking?where the processor switches between many tasks
- 6What is disk partitioning?Splitting a memory disk into distinct areas for certain things. This allows multiple operating systems to be present, to store common files together and bucking up areas
- 7What is a buffer?A temporary memory storage set aside to allow data to be held between two devices with different transfer speeds
- 8What are the three states a process can be in?ready
running
blocked - 9What is polling?This is hwere a computer sends a signal to a device such as a printer to ask if it is ready. If it is a signal is sent back
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- FlashCards sobre Sem título, criado por will.jones0104 em 19-02-2016.
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