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______ are piplines through which the data travels, either physical or made of energy. |
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A measurement of how much data can pass through a line medium in a certain time fram. |
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______ is the frequency range between the highest and lowest frequency passed through a component or circuit. |
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A _____ is made up of 4 to 3,000 pairs twisted together into one cable. |
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______ can be used with frequencies of up to 10,000 MHz, and transmits at a rate of 10 Mbps. |
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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. |
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______ systems use large antennas to transmit a signal from repeater station to repeater station on the ground. |
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______ cabling is relatively inexpensive in comparison to metallic cables of the same capacity. |
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A _____ uses hardware and protocols designed to communicate with computers that are typicaly in the same building or same general vicinity. |
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A ______ typically uses telephone lines and satellites as a medium of communication. Networks can tlak to other networks with the right communications setup. |
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This is an example of a network to which the public can subscribe to. |
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Using a public network for secure information exchange between private computers is called a _____ |
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In 1991, the first truly user-friendly interface for the internet, called_____, was developed at the University of Minnesota. |
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To make the nets even easier to use, a new protocol was proposed for information distribution; this protocol became _______ |
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_______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. |
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In this LAN configuration, all of the devices are connected to a central line medium, know as the backbone. |
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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. |
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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. |
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In this LAN configuration, groups of devices are arranged in star topologies but each group is connected to a backbone line medium. |
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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. |
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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. |
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From one _____ phone line, you can take a phone call and transmit data from your computer at the same time. |
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A _______ provides 24 channels at 64 Kbps, totaling a rate of 1.536 Mbps with an additional 8 Kbps used as framing information. |
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A _____ connection has a total of 672 individual channels, each of which supports 54 Kbps data transfers. |
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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. |
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This connection supplies us with a much wider bandwidth than regular phone lines, with speeds up to 2 Mbps. |
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______is designed to handle voice, video and data in WANs at rates of up to 2,488 Mbps. |
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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. |
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Dennis Ritchie of Bell Labs, working on a compiler that could generate executable code, ushered in this modern code that we use today. |
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_____ 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. |
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A ______ is fixed at a particular resolution, making them difficult to resize without distortion. |
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An ________is a mathematical equation that can be resized and manipulated with the click of a mouse. |
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The ______ file format, commonly used in the printing industry, has variations that include black and white, gray scale, and color. |
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______was designed for printing purposes, and is an object-oriented file format. |
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The ________ contains data compression for bitmaps that uses only 256 colors, which allows them to be smaller files and ideal for surfing the web. |
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______is often throught of as a file format, but really is a set of standards for compression for bitmapped images. |
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_____was created to allow for a free and improved version of the GIF format. |
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The _____ format is the standard bitmapped graphics format for Microsoft Windows computers and doesn't utilize any compression. |
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____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. |
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______is just one of several Microsoft's streaming formats, but these files contain audio only. |
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_____is another of Microsoft's streaming formats, which can contain video in addition to audio. |
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_____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. |
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_____is a video compression that is used to reduce the video file to 1/140th of its original size. |
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_____is used for sudio compression, and is commonly found on the web. |
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______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. |
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______was built upon previous file formats, and also provided more standars for ultimedia applications and better audio-video compression. |
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