Using Information Technology: A Practical Introduction to Computers and Communications, 5/e

Brian K. Williams
Stacey Sawyer

TELECOMMUNICATIONS: Networks & Communications: The "New Story" in Computing

Chapter 7 Fill in the Blanks


1		A(n) is a set of conventions governing the exchange of data between hardware and/or software components in a communications network.


2		A(n) is a device that merges several low-speed transmissions into one high-speed transmission.


3		A(n) - is a type of multiplexer consisting of a small computer connected to a larger computer; it is used to assist with communications functions.


4		A(n) is a fixed-length block of data for transmission.


5		In , electronic messages are divided into packets for transmission over a wide area network to their destination, through the most expedient route.


6		is a measure of the number of packets that are lost on the way from a computer to its destination computer.


7		The is an often nonpermanent and mobile office run with computer and communications technology.


8		connections are characterized by very high speeds.


9		Satellite systems may occupy one of three zones in space: GEO, MEO, and .


10		is a short-range wireless digital standard aimed at linking cellphones, PDAs, computers, and peripherals up to distances of 30 feet.

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