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Cards In This Set
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 What does the Internet Protocol TCP/IP stand for? |
Transmission Control Protocol/Internet Protocol
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 TCP/IP organises how data packets are sent and received. It ensures that each data packet carries what information?Think of at least three |
A. SOURCE - where the packet came fromb. DESTINATION - where the packet is going toc. CHECK SUM - to make sure everything has been sent.d. DATA - the content of the packete. SEQUENCE - eg 2 of 5 packets
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 What is a database? |
A collection of data that is organised so that it can be accessed, managed and updated. A relational database has links between tables
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 The UNIQUE IDENTIFIER or a record in a database table is known as the what?Upload Image |
Primary Key
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 When the PRIMARY KEY of a table is placed in another table to make a link it is known as what? |
FOREIGN KEY
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What is SERVER SIDE SCRIPTING?
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What is CSS?
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Cascading Style Sheets
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What is CSS used for?
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To style the web pages. Pages and sites can be changed just by changing the CSS.
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What does HTML stand for?
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Hyper text Mark-up Language. This is used to create web pages
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What does RLE stand for?
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Run Length Encoding Encoded as 2G 5Y 5R instead ofGGYYYYRRRR
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Give two reasons for structuring data in a database.
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Easier / faster to:o Sorto Search (by using queries)o Produce reportso Analyse datao Keep organised
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What is meant by computer modelling?
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Using computers to work out/model the effects of changing something. eg using a spreadsheet to model the effects of a pay rise on household saving
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Three features of a compiled programming language are........
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Give a feature of a Magnetic Hard Drive
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How many different numbers can be represented by an 8-bit binary number?
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256 You can only count up to 255 but 256 includes the 0
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