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language usage explained
Glossary clarifies words and terms used at AbleStable®
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Single Page Glossary
Hacking involves unauthorised
access to a computer, its files and programs. It is highly
unlikely a private individual will be the target of a
The method of producing
a range of tones, such as a photograph or tinted area,
by dividing the image into a series of dots. Dark areas
have relatively big dots, close together. Light areas
have small dots surrounded by white space. The number
of dots used determines the quality of the image produced.
In a newspaper the halftone dots are easily visible to
the naked eye - the screen used can often be as coarse
as 60 dpi (dots per inch). A colour magazine would typically
use a screen of 150 dpi - An art book, 175 dpi or finer.
A halftone screen can be applied to a solid colour in
order to produce tints of that colour.
(CR32 or MD5 values)
A hash function is a function that converts an input
from a (typically) large domain into an output in a (typically)
smaller range (the hash value, often a subset of the
integers). Hash functions vary in the domain of their
inputs and the range of their outputs and in how patterns and
similarities of input data affect output data.
A cyclic redundancy check (CRC) is a type of hash function
used to produce a checksum, which is a small number of
bits, from a large block of data, such as a packet of
network traffic or a block of a computer file, in order
to detect errors in transmission or storage. A CRC is
computed and appended before transmission or storage,
afterwards to confirm that no changes occurred.
In cryptography, MD5 (MessageDigest algorithm 5) is a
widelyused cryptographic hash function with a 128bit
hash value. As an Internet standard, MD5 has been employed
in a wide variety of security applications, and is also
used to check the integrity of files.
Values of Red, Green,
and Blue, where each component has a hexadecimal value
from 00 to FF. 00-00-00 is black and FF-FF-FF is white.
A company that rents
out space on the Internet to allow you to place web pages
keyboard shortcut (also known as an accelerator key,
shortcut key, or hotkey) is a set of keyboard keys that
when pressed simultaneously, perform a predefined task.
Such a task could be done with the
mouse (or other analog input such as a trackball), but
would require much longer. Hence, they are a shortcut
in that they save the user time.
Values of Hue, Saturation, and Brightness, where Hue has
a value from 0 to 360 degrees, and Saturation and Brightness
have a value from 0 to 100%.
'Hue, saturation, luminance.' An alternative to the RGB
scheme for specifying colours, in which the hue, saturation
and luminance are given. 'Hue' relates to the primary
colour content of the colour, and a number which specifies
how close it is to red, green or blue. Saturation is the
'whiteness' or the colour; for example a highly saturated
red is pink. Luminance is the intensity of the colour.
HTML stands for HyperText
Markup Language, the common language of documents on the
Hypertext Transfer Protocol
is the protocol standard for regulating the way computers
transmit data on the Internet. Many Internet addresses
begin http, for example: http://www.ablestable.com.
Hypertext Transfer Protocol
Secure is the required protocol for pages that require
a SSL connection.
A hypertext link is a
special word or phrase in a web page that 'points' to
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