you will find a comprehensive glossary of Internet and Computer terms with definitions that are helpful and easy to understand.
To find a term, click the letter of which the word begins with and scroll
alphabetically to find your term. For example, to find the definition for the
word "Media", click the letter "M", then scroll the list
alphabetically until you find "Media".
This computer term describes the main line or series of
connections in a network. The backbones are connection points where
high-speed data on the Internet connects to networks.
To copy files to a second source or media in an effort to safeguard the
original version. When computer, the first rule is to backup your files
regularly. Even if you think you have the most reliable of computers, you
just never know when its time is up. It is recommended that you keep your
backup copy in a separate place from the original.
A measurement of how much data
that can be sent through a connection. The measurement is usually in bits
A method of transmission that sends a digital or analog signal in its
original form, not changed by modulation. While this form of transmission
can be much more reliable than its Broadband counterpart, it is much slower.
A file that has the .BAT extension. This file usually contains a sequence
(or batch) of commands. A batch files set of commands can be executed all at
once by the batch file name rather than by each individual command name.
Pronounced bawd>. This term is named after J.M.E. Baudot
who invented of the Baudot telegraph code. Commonly, the baud rate of a modem is how many bits it can send or receive per second. Technically, baud
refers to the number of times per second that the carrier signal shifts value.
As an example, a 1500 bit-per-second modem actually runs at 375 baud, but it moves 4 bits per baud (4 x 375= 1500 bits per second).
designed to bring people together where they can carry on discussions and
download files where all of the other members of the service can monitor
these transmissions in real time.
stage for products (both hardware and software) that are being developed. It
is referred to as the "beta version".
System. The BIOS gives the computer a little built-in starter kit to run the rest of softwares from floppy disks
(FDD) and hard disks (HDD). The BIOS is responsible for booting the computer by providing a basic set of instructions.
basic numbering system that consists of ones and zeros.
This refers to a single digit number. It is either a 1 or a zero. The binary
digit is the smallest unit of computerized data.
Bit Depth can be referred to as Color Depth or Pixel Depth. It refers to a
method of measurement where using the number of bits to define each pixel in an image
to determine its color range. The larger the Bit Depth, the larger number of
tones (grey scale or color) are available to properly display the digital
A file format used for digital imagery. This format maps an image pixel (or bit).
All computer systems use this file format. Some of the common types of
bitmap file formats would be:
(Slang term for a Weblog)
A blog is a person journal that can be accessed publicly and allow people to
comment on the previously posted comments. When someone posts a comment to a
blog this is called "blogging". The person that owns the blog is called a "blogger".
Most typically, blogs are updated on a daily basis and use the most basic of
formats so that a person with very little background in computing can easily
figure out how the blogging system works.
Also known as Blu-ray Disc. This is an optical disc format
that was developed to enable recording, playback, and rewriting of high-definition
(HD) video. This technology has a storage capacity far greater than that of
traditional DVDs. A single-layer disc can hold up to 25GB while a dual-layer
disc can hold up to 50GB. DVD disc technologies use a red laser to read and
write data. Blu-ray uses a blue-violet laser (hence the name). The benefit
of the blue-violet laser over the red laser is its ability to focus the
laser spot with greater precision because of its shorter wavelength. A red
laser's wavelength is 650nm while the Blu-ray's wavelength is 405nm.
Radio technology that connects electronic devices without using a cable.
Data and voice can be exchanged at ranges of up to 10 meters
without the need for devices to be lined up together.
It is a Microsoft Windows image file format known as bitmap.
computing, a Bayonet Network Connector is commonly used in the CCTV
industry, usually installs on coaxial cable. The benefit of this connector
is its ease of installation and its ability to produce a very reliable video
A type of mathematical logic named after its designer George Boole. This
binary algebraic system is used primarily in switching circuits and database
searches. Search engines use logical operators called, Boolean Operators
(AND, OR, NOT).
- AND: Narrows a keyword
search by collecting all terms present in the same document.
- NOT: Prevents retrieval of
unwanted documents containing a keyword.
- OR: which broadens a
keyword search by linking related terms.
- Boot Disk:
refers to a diskette that is formatted to actually boot your computer from.
They were created as a backup tool in case the normal boot method (hard
disk) has failed.
A bridge is a computer networking device used to make a connection and pass
along packets of data between two networking computers using the same
A browser is the software used for viewing pages on the web.
Two examples are Microsoft Internet Explorer and Netscape Navigator.
A place, especially in RAM, for the temporary storage of data for the purpose of speeding up an operation such as printing or disk access. Data from a buffer is available more quickly than data from where the buffer got it. Typically buffers get data before it is needed so it will be ready quickly when it is needed. Similar to cache.
Using a buffer to isolate the memory from the controller reduces the load on
the chipset. This allows for more memory chips to be used.
A bus is a grouping of wires that allow the flow of data from one area of
the computer to another. It is thought of that a bus represents a highway
that the data travels through in the computer system. In personal computing,
some refer to a bus as the Internal bus which connects all of the devices to
the CPU and memory. Also, you may hear the term expansion bus, which
connects the expansion board with the CPU and memory.
All buses are made up of two parts:
The data bus is responsible
for the actual data transfer whereas the address bus will route the data to
the proper place.
The size of the bus, which is measured in width is the amount of data that
it is able to transmit. For instance, a 16 bit bus will be able to transfer
16 bits of data and a 32 bit bus can transfer 32 bits a data.
Another thing that all buses have in common is that they all have a clock
speed. This clock speed is measured in MHz (megahertz). The faster the clock
speed of the bus the faster the application will run. In older PC's the bus
that was used was the ISA bus. These older buses are quickly being replaced
by the speedier PCI bus.
Most PC's today require a speedy bus that can transfer data very rapidly.
This is what a "local bus" will do. It is a high-speed information highway
that connects directly to the processor.
Lastly, you may hear the term "bus" used in networking. This refers to cable
that connects all of the internal devices on a local area network (LAN) also
referred to as the "backbone".
- Bus Mastering:
A technique that allows
certain advanced bus architectures to delegate control data transfers between the CPU and associated peripheral devices to an
add-in board. This gives greater system bus access and higher data transfer rates than conventional systems.
A byte is a computer data transfer or data
storage measurement. One byte equals 8 bits.