Flashcards
3.1.2 Software 2/3
Flashcards do conjunto (14)
- 1What is Custom Written Software?Developed to fit the Clients needs and wants
No part of the software that isn't needed
Suits Clients working methods
More expensive - 2Definition of Custom Written SoftwareOften created for very specialized tasks, when a generic, off the shelf, solution does not already exist
- 3What does a Knowledge Based System contain?A Knowledge base- the store of the systems information
A Rules Base- Rules applied to Knowledge Base
Inference Engine- contains algorithms that are applied to Rules Base
HCI- through the user can ask question and receive answers - 4What is a Batch Operating System?Run in single sessions at regular intervals after all data has been input
Processed the same way
No Human intervention needed
Can be done in machines downtime - 5What is Real time operating System?Data is processed immediately
e.g. Flight booking system online & Hotel room booking - 6What is a single user operating system?Only one person is allowed to log in at once (windows)
- 7What is a Multi-User operating system?Several terminals from one central computer
Users have different permissions
e.g. Supermarket Checkout - 8What is a Multi-Tasking System?Can run more than one application at once
Slice of processor time allocated to each thing
e.g. Windows- Revising and listening to Music - 9What is a Distributed System?User profiles taken from a central server
On logging off the users profile is saved
e.g. School Network - 10What is a Utility?system software used to perform standard operations, as sorting data or copying data from one file to another, for application programs or other system software.
- 11What does Compression Software do?Reduces File Size
Zipped folders can contain more than one file
Useful for video, audio and images
On Email can be sent easier? - 12What is a Hardware Driver?Provides a connection between operating system and new hardware.
e.g. if you get a new printer - 13What does a Anti- Virus Software do?Regularly scans system for threats
Can delete viruses and send virus details to developer - 14What does a File Handler do?Manage or organise data storage
Allows files to be deleted or accessed
Passwords can be used for protection
Informações
- Descrição
- A Level Computing (F451) FlashCards sobre 3.1.2 Software 2/3, criado por Molly Hills em 27-11-2014.
- Criado por
- Molly Hills
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