Key words flash cards

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Client-server
A network where several computers are connected to one or more servers
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Peer-to-peer network
A network arrangement where each computer is of equal status
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Hotspot
A region where the Internet can be accessed wirelessly
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Wi-Fi
A trademark for the certification of products that meet certan standards for transmitting data over wireless networks
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Log-in
Identifying yourself to the network in order to gain access
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Log-out
Informing the network you want to close access to the network facilities until the next log-in
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Password
A sequence of characters (which is kept secure from others) that the user enters to gain access to the network
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Username
A unique series of characters the user or the network manager chooses. Quite often it will be the users name or perhaps a nickname.q
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FTP (file transfer protocol)
A standard Internet protocol (way of doing things) providing a simple way of transferring files between computers using the Internet
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URL (Uniform Resource Locator)
The web address used to locate a webpage or website
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Search engine
Software that can be used to search for information on the Internet
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Distributed computing
Where a series of computers are networked together and they each work on solving the same problem. Each computer shares data, processing, storage and bandwidth in order to solve a single problem
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Bandwidth
A measure of the speed at which data can be transferred along a communication channel, which could be cable or wireless. Broadband has a much higher bandwidth than dialup
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Dialup
A method of connecting to the Internet which makes use of a modem and telephone line. This offers a slow connection.
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Broadband
A fast connection to the Internet which doesn't use a modem
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Telecommuting
Means performing job-related tasks by using telecommunications to send and receive data to and from a central office without having to be physically present
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Teleworking
Means using communications to save a journey, e.g. you could save a journey abroad by videoconferencing
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Hacker
A person who tries to or succeeds in breaking into a secure computer system
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Hacking
The process of trying to break into a secure computer system
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UPS (Uninterruptible power supply)
A backup power supply (generator and battery) which will keep the computer running should the mains power supply fail
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Password
A series of characters chosen by the user that are used to check the identity of the user when they require access to an ICT system
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User-ID
A name or number that is used to identify a certain user of the network or system
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Firewall
A piece of software, hardware or both that is able to protect a network from hackers
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Backup
Copies of software and data kept so that the data can be recovered should there be a total loss of the ICT system
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Encryption
The process of coding files before they are sent over a network to protect them from hackers. Also the process of coding files stored on a computer so that if the computer is stolen, they cannot be read
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Risk analysis
The process of assessing the likelihood of certain events happenning and estimating the cost of the damage they could cause and what can be done at reasonable cost to eliminate or minimise the risk
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Disaster recovery programme
A plan that restores ICT facilities in as short a time as possible in order to minimise the loss caused by the complete or partial loss of an organisations ICT facilities
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Relational database
A large collection of data items stored in tables containing links between the tables so that the data can be accessed in many different ways and by a range of different applications programs
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Data independence
The data and the programs used to access it are separate
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Data integrity
The correctness of the data
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Data warehouse
A huge database specifically structured for information access and reporting
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SQL (structured query language)
A special language used for extracting specific infomation from databases
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Data dictionary
A central store of information about data such as tables, field names, field types, field length, validation used on the field etc
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Distributed database
A single database that is under the control of a database management system (DBMS) where the storage devices are not all attached to a common processor. Instead, the data is stored in storage devices attached to multiple computers
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Other cards in this set

Card 2

Front

A network arrangement where each computer is of equal status

Back

Peer-to-peer network

Card 3

Front

A region where the Internet can be accessed wirelessly

Back

Preview of the back of card 3

Card 4

Front

A trademark for the certification of products that meet certan standards for transmitting data over wireless networks

Back

Preview of the back of card 4

Card 5

Front

Identifying yourself to the network in order to gain access

Back

Preview of the back of card 5
View more cards

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