Basic Terminology Flashcards
3D Printer
Printer that allows one to create physical three-dimensional objects from designs
created on a computer using CAD or 3D modelling software.
Accelerometer
Input device in smartphones and tablets, used to detect which way around the
device is held or how it is being moved. This allows it to change the orientation of
the screen depending on how you hold it.
Access control
The operating system asks for your permission before any software can be
installed. The purpose is to try to make it impossible for malware to be installed on
your computer without your knowledge.
Algorithm
Step-by-step solution used to solve a problem (used in programming).
Application software
A group of programs that perform specific tasks for us as users, for example word
processing programs.
Archiving (files)
Making copies of files, where the copies are not meant to be accessed regularly
but are kept for reference when needed.
Aspect ratio
The relationship between the width and height of the display, e.g. 16:9
Backup
Making copies of files with the aim of having extra copies of the files in case the
originals get lost or become damaged for one or another reason.
1 Beta software
Preliminary (pre-sale) versions of software, released by developers to be tested by
the general public. Programmers try to fix all the reported errors before the final
version of the software is released.
1 Biometric
identification
The use of technology that measures/scans something biologically unique to each
person, such as a fingerprint or the pattern of the iris of an eye, for identification
purposes.
1 Bluetooth
A wireless technology that allows devices such as mice, printers and smartphones
to communicate over a relatively short distance,
1 Blu-ray
An optical disc format designed to enable recording, rewriting and playback of
high-definition video (HD), as well as storing large amounts of data (more than
DVD).
1 Boot
The term used to describe a computer’s start-up process. Restarting a computer is
called ‘rebooting’ it.
1 Bug (software)
Mistake made by accident when the programmers wrote the software. (Not a
virus.)
1 Byte
Each single character we store, such as ‘4’ or ‘A’ or ‘%’, takes up space which we
refer to as a byte.
Cache memory
A high-speed memory used to hold recently or frequently accessed data, in order
to be able to retrieve that data faster.
1 Card reader
Device into which a memory card is inserted. Data can then be transferred
between the memory card and the computing device attached to the card reader.
1 Carpal tunnel
syndrome (CTS)
A painful compression of the nerves in the wrist caused by repetitive manual action
such as typing.
1 Clipboard
Area in memory (RAM) where copied or moved objects – both text and graphics –
are temporarily stored. They are kept there until they are pasted somewhere (or
until the program is closed or the computer is shut down).
1 Cloud computing
A general term that refers to the sharing and use of resources and applications
offered as services over the internet.
1 Cloud storage
The online storage of files.
1 Colour depth
The number of bits used to represent the colour of each pixel in an image.
1 Contrast ratio
The relationship between the darkest black and the brightest white that a display
device can produce. Higher values are better.
1 Convergence
The trend where separate technologies and functions that required different
devices in the past are combined into one single device, e.g. the smartphone and
the tablet.
1 Core
A single physical processor. Chips that are ‘dual core’ have 2 processors, ‘quad
core’ have 4 processors, etc.
1 CPU
Central Processing Unit – hardware component that processes all data and carries
out all instructions.
Dedicated device
Devices that are designed to perform just one specific task, such as Automatic
Teller Machines (ATMs), GPS devices and household appliances like microwave
ovens and washing machines.
1 Default printer
The printer that printing will be sent to unless otherwise specified by the user.
1 Defragmentation
The defragmenter utility program rearranges and consolidates the scatted parts of files on disk so that they can be retrieved more quickly.
1 DIMM
Dual Inline Memory Module – a standardized ‘stick’ of RAM designed to fit into a DIMM slot on the motherboard.