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ima
chp 11
46
Other
Not Applicable
11/12/2005

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Term
______ are piplines through which the data travels, either physical or made of energy.
Definition
Line Mediums
Term
A measurement of how much data can pass through a line medium in a certain time fram.
Definition
Throughput
Term
______ is the frequency range between the highest and lowest frequency passed through a component or circuit.
Definition
Bandwidth.
Term
A _____ is made up of 4 to 3,000 pairs twisted together into one cable.
Definition
Twisted Pair
Term
______ can be used with frequencies of up to 10,000 MHz, and transmits at a rate of 10 Mbps.
Definition
Coaxial Cable
Term
There are several types of signals that are transmitted by _____ systems, ranging from 6 MHz bandwidth for TV programs to 43 Mbps for digital data.
Definition
Satellite
Term
______ systems use large antennas to transmit a signal from repeater station to repeater station on the ground.
Definition
Microwave
Term
______ cabling is relatively inexpensive in comparison to metallic cables of the same capacity.
Definition
Fiber Optic
Term
A _____ uses hardware and protocols designed to communicate with computers that are typicaly in the same building or same general vicinity.
Definition
LAN
Term
A ______ typically uses telephone lines and satellites as a medium of communication. Networks can tlak to other networks with the right communications setup.
Definition
WAN
Term
This is an example of a network to which the public can subscribe to.
Definition
AOL
Term
Using a public network for secure information exchange between private computers is called a _____
Definition
VPN
Term
In 1991, the first truly user-friendly interface for the internet, called_____, was developed at the University of Minnesota.
Definition
Gopher
Term
To make the nets even easier to use, a new protocol was proposed for information distribution; this protocol became _______
Definition
The World Wide Web
Term
_______was the first national commercial online service to offer Internet access to its subscribers, opening an email connection in July 1992, and full interent service in November 1992.
Definition
Delphi
Term
In this LAN configuration, all of the devices are connected to a central line medium, know as the backbone.
Definition
Bus Topology
Term
In this LAN configuration, all of the devices are connected to one another, forming the shape of a circle. Each device is connected directly to two other devices, one on each side of it.
Definition
Ring Topology
Term
In this LAN configuration, all of the devices are connected to a central hub, which acts as a traffic cop for all the data transmitted through the network.
Definition
Star Topology
Term
In this LAN configuration, groups of devices are arranged in star topologies but each group is connected to a backbone line medium.
Definition
Tree Topology
Term
This LAN system allows multiple communication signals to travel through one channel by using packets of data that have destination addresses, and redundant check bits to detect transmission errors.
Definition
Ethernet
Term
This LAN interface allows local area networks to be transmitted at rates of up to 100 Mbps. This protocol can only be used with fiber-optic cable.
Definition
FDDI
Term
From one _____ phone line, you can take a phone call and transmit data from your computer at the same time.
Definition
ISDN
Term
A _______ provides 24 channels at 64 Kbps, totaling a rate of 1.536 Mbps with an additional 8 Kbps used as framing information.
Definition
T1
Term
A _____ connection has a total of 672 individual channels, each of which supports 54 Kbps data transfers.
Definition
T3
Term
There are two basic types of this line medium, a symmetric and an asymmetric, both of which utilitze a high-frequency part of the bandwidth on regular phone lines.
Definition
DSL
Term
This connection supplies us with a much wider bandwidth than regular phone lines, with speeds up to 2 Mbps.
Definition
Cable
Term
______is designed to handle voice, video and data in WANs at rates of up to 2,488 Mbps.
Definition
ATM
Term
By 1970, Bell Labs had created the computer code called ______ which was written for the new operating system at the time, which was called UNIX.
Definition
B
Term
Dennis Ritchie of Bell Labs, working on a compiler that could generate executable code, ushered in this modern code that we use today.
Definition
C
Term
_____ is text-based, and is embedded in browseres for the internet. It can't run on its own, it has to be run within another program.
Definition
Javascript
Term
A ______ is fixed at a particular resolution, making them difficult to resize without distortion.
Definition
Bitmapped Image
Term
An ________is a mathematical equation that can be resized and manipulated with the click of a mouse.
Definition
Object-Oriented Image
Term
The ______ file format, commonly used in the printing industry, has variations that include black and white, gray scale, and color.
Definition
TIFF
Term
______was designed for printing purposes, and is an object-oriented file format.
Definition
EPS
Term
The ________ contains data compression for bitmaps that uses only 256 colors, which allows them to be smaller files and ideal for surfing the web.
Definition
GIF
Term
______is often throught of as a file format, but really is a set of standards for compression for bitmapped images.
Definition
JPEG
Term
_____was created to allow for a free and improved version of the GIF format.
Definition
PNG
Term
The _____ format is the standard bitmapped graphics format for Microsoft Windows computers and doesn't utilize any compression.
Definition
BMP
Term
____was created by Microsoft, and is used to save synchronized audio and/or video, for distribution over networks or for use on a local computer.
Definition
ASF
Term
______is just one of several Microsoft's streaming formats, but these files contain audio only.
Definition
WMA
Term
_____is another of Microsoft's streaming formats, which can contain video in addition to audio.
Definition
WMV
Term
_____a common file used in Microsoft Windows in regards to video files, can used different codecs, so the user must have the proper codec to view the file.
Definition
AVI
Term
_____is a video compression that is used to reduce the video file to 1/140th of its original size.
Definition
MPEG 1
Term
_____is used for sudio compression, and is commonly found on the web.
Definition
MP3
Term
______is able to store high-quality video without taking the massive amount of space the original uncompressed video takes. The compression does this by removing redundancies within the motion picture.
Definition
MPEG 2
Term
______was built upon previous file formats, and also provided more standars for ultimedia applications and better audio-video compression.
Definition
MPEG 4
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