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ICT key terms

Terms

undefined, object
copy deck
oparating systems
The task of co-ordinating all of the software and hardware
html
hypertext markup language - the language of web pages
Teleworking
working from home using computers
Bit
8 bits make up a byte
WAN
wide area network- conects computers over large disatnces
relational database
a database with linked tables
RAM
Random acses memory
CAM
computer aided manufacture
flat file
a database using one file
HEX code
used in HTML as a colour code in the form (#??????)
import
bring information from one document into another
hyperlink
the links between documents on the internet
encryption
changing information into code to make it secure
Storage
stores things- eg- memory stick, cd rom, flopy disk
ROM
Read only memory-Also know as non-volotile memory
Byte
1024 bytes make up 1 kilobyte
search engine
a means of searching for information on the internet
CAL
Computer aided learning
macro
an automatic timesaving series of commands
Output
puts something out eg- speakers, moniter, printer
Terabyte
1 trillion bites
key field
the identifying field in a database table
verification
ensuring the data is accurate
Input
put into the computer eg-keyboard, scanner, mouse, camara
browser
software to access the internet
formatting
changing the appearance of text or number
real-time processing
processing data straight away
data flow diagram
a diagram showing the design of a system
batch processing
processing data all in one go
CAD
computer aided design
validation
checking that the data is the right type
wysiwyg
what you see is what you get
computer misuse act
the law which copes with hackers and viruses
crop
removing unwanted bits from an image
Field
one thing eg-hair colour, DOB
bitmap
graphics based on pixels
Gigabite
1024 megabytes
GIGO
Garbage In Garbage Out
interactive processing
processing where you respond to prompts
template
a standard document containing pre-set formats
header
information at the top of a document
RSI
repetitive strain injury
Kilobyte
1024 kilobytes make a meagbite
Record
Name of all the realted fields put together
data protection act
the law which governs what information can be held by people
Mega bite
1024 megabytes make a gigabyte
ATM
automatic telling machine (bank cash machine)
compressed/zip file
a file that takes up less room than a normal one
transaction processing
processing data as a one off special
hacker
someone who breaks into a computer system
spell check
automatic checking of spelling in a document
footer
information at the bottom of a document
vector
graphics based on coordinates and equations
LAN
Local area network- conects PCs in the same building

Deck Info

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