Flashcards
Operating System Definitions
Flashcards do conjunto (25)
- 1Access LogA record of what each user has done on a computer.
- 2AdministratorA user who has full rights on a multi user system. They can create and modify other users accounts.
- 3ADSLA system of sending data over telephone lines by using a number of modulated carrier waves.
- 4AppletA small program, written in java, runs within a web page. Machine independent.
- 5ASPActive server pages. Web pages written on request for example the page presented when searching on a search engine.
- 6BasebandA transmission that does not use modulation. Eg in a copy cable where 0 and 0 are represented as 5v and 0v.
- 7Biometric TestSecurity test that identifies the the user by measuring a characteristic of their body eg fingerprint.
- 8BookmarksIn a browser it is a short cut to a page.
- 9BridgeJoins two networks with the same protocol on each side.
- 10BrowserDisplays world wide web written in HTML.
- 11BuffersTemporary storage (RAM) used to deal with speed differences between two devices.
- 12CacheFast storage (RAM) containing a copy of frequently used data.
- 13Circuit SwitchingDescribes the process where the route through a network is negotiated and allocated before transmission starts.
- 14CollisionIn a hash file, collision occurs when the hash function gives the same record position for two records.
- 15Collision domainsAn area of a network that can only transfer one data packet at a time.
- 16CookiesSmall data files stored by a web site on a browser so it can remember when the user goes back to the site.
- 17CSMA/CDThe collision avoidance and detection system generally used on a LAN.
- 18Device DriversSoftware that converts OS instructions into the actual commands needed by a piece of hardware such as a printer.
- 19Distributed databaseA database where different parts of the database are stored in different computers joined by a network.
- 20Domain namesThe name representing a host computer on the internet.
- 21Double BufferingThe use of two or more buffers so one can be read while the other is being written.
- 22DuplexTwo way, simultaneous communication.
- 23Dynamic Name ServerConverts domain names into IP addresses.
- 24E-CommerceThe carrying out of commercial operations using the internet.
- 25File EncryptionScrambling the contents of a file in order to make it unreadable by anyone who does not know how to unscramble it.
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- A-Level Computing FlashCards sobre Operating System Definitions, criado por elliot9678 em 10-04-2016.
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- elliot9678
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