FBLA TECHNO : Technology Concepts:1:@3
A collection of related data that is
stored in a manner enabling information to be
retrieved as needed; in a relational database,
a collection of related tables.
database
Application software that
allows the creation and manipulation of an
electronic database.
database software
The numbering system
that represents all numbers using 10 symbols.
decimal numbering system
The part of a CPU core that translates
instructions into a form that can be processed
by the ALU and FPU
decode unit
A personal computer designed
to fit on or next to a desk.
desktop computer
A program that enables an operating
system to communicate with a specific
hardware device; often referred to simply as a
driver.
device driver
A type of Internet connection in
which the computer or other device must dial up
and connect to a service provider's computer via
telephone lines before being connected to the
Internet.
dial-up connection
An input device that takes pictures
and records them as digital images.
digital camera
A group of electronic data that
can be used to verify the identity of a person
or organization; includes a key pair that can
be used for encryption and digital signatures.
digital certificates
A type of signal where the data is
represented by 0s and 1s.
digital signal
A unique digital code that can be
attached to a file or an e-mail message to verify
the identity of the sender and guarantee the file
or message has not been changed since it was
signed.
digital signature
A type of Internet connection
in which the computer or other device is
connected to the Internet continually.
direct connection
A type of Internet search in which categories are selected to locate information on the Internet.
directory search
The time it takes to locate and
read data from (or position and write data to) a
storage medium.
disk access time
Memory used in conjunction with
a magnetic hard drive to improve system
performance.
disk cache
An output device that contains a
viewing screen.
display device
A display device built into a
notebook computer, netbook, UMPC, or other
device.
display screen
A learning environment in which
the student is physically located away from
the instructor and other students; commonly,
instruction and communications take place via
the Web.
distance learning
A text-based Internet address used
to uniquely identify a computer on the Internet.
domain name
An act of sabotage that attempts to flood a network server or a Web server with so much activity that it is unable to function.
DoS (denial of service) attack
The operating system designed for and widely used on early IBM and IBM-compatible PCs
DOS (Disk Operating System)
A fraud or scam carried out through the
Internet
dot con
Fast, direct Internet access via standard
telephone lines.
DSL (Digital Subscriber Line) Internet access
A CPU that contains two separate
processing cores.
dual-core CPU
A mobile phone that can be used
with more than one communications network,
such as with both a cellular and Wi-Fi network
dual-mode phone.
A medium capacity (typically 4.7 MB or
8.5 MB) optical disc that is often used to deliver
software and movies, as well as to store user
data.
DVD disc
Recordable DVDs
DVD-R/DVD+R discs
A DVD that can be read from, but
not written to, by the user
DVD-ROM disc
Rewritable DVDs
DVD-RW/DVD+RW discs
Changing the content of a document, such
as inserting or deleting words
editing
A group of electronic slides
that are displayed one after the other on a
computer monitor or other display device
electronic slide show
Electronic messages sent
from one user to another over the Internet or
other network.
e-mail (electronic mail)