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test 1 ch. 3
comp. science
24
Computer Science
Undergraduate 2
02/06/2008

Additional Computer Science Flashcards

 


 

Cards

Term
adware
Definition
programs that download on your computer when you install a freeware program, game, or utility.  enables sponsored advertisements to appear in a section of your browser window or a pop-up
Term
aggregator
Definition
software programs that go out and grab the latest update of web material (podcasts)
Term
boolean operators
Definition
words used to refine logical searches.  for internet searches these words--AND, NOT and OR-- describe the relationships between keywords in the search
Term
broadband connections
Definition
high-speed internet connections, including cable, satellite, and digital subscriber line
Term
cable Internet connection
Definition
data transmission line that ransmits data at high speeds along coaxial or fiber-optic cable
Term

cable modem

 

Definition
device that enables a computer to send data over cable lines.  a modem modulates and demodulates the signal into digital data and back again
Term
client
Definition
a computer that requests information from a server in a client/server network (such as your computer when you are connected to the Internet)
Term
client/server network
Definition
a network that consists of client and server computers, in which the clients make requests of the server and the server returns the response
Term
cookies
Definition
small text files that some Web sites automatically store on a client computer's hard drive when a user visits the site
Term
data transfer rate
Definition
max. speed at which data can be transmitted between two nodes on a network, usually measured in meagabites per second
Term
domain name
Definition
part of a Uniform Resource Locator (URL).  domain names consist of 2 parts: site's host and a three-letter suffix that indicates the type of organization (ex: popsci.com)
Term
internet backbone
Definition
main pathway of high-speed communications lines over which all Internet traffic flows
Term
Internet Protocol Address (IP)
Definition
means by which all computers connected to the internet identify each other.  consists of a unique set of 4 numbers (123.45.178.91)
Term
internet service providers (ISPs)
Definition
companies that connect individuals, groups, and other companies to the internet
Term
Large Scale Networking
Definition
program created by the US govt., objective of which is to fund the research and development of cutting-edge networking technologies.  Major goals of the program are the development of enhanced wireless technologies and increased network throughput
Term
malware
Definition
software that is intended to render a system temporarily or permanently useless or to penetrate a computer system completely for purposes of info. gathering.  examples include spyware, viruses, worms, and Trojan horses
Term
phishing
Definition
process of sending email messages to lure internet users into revealing personal info. such as credit card or social security numbers
Term
spider (or crawler or bot)
Definition
a program that constantly collects info. on the Web, following links in Web sites and reading web pages.  spiders get their name bc they crawl over the wbe using multiple 'legs' to visit many sites simultaneously
Term

File Transfer Protocol

Definition
a protocol used to upload and download files from one computer to another over the Internet
Term
Internet 2
Definition
an ongoing project sponsored by more than 200 universities to develop new Internet technologies and disseminate them as rapidly as possible to rest of Internet community.  Internet2 backbone supports high-speed communications
Term
wiki
Definition
type of Web site that allows anyone visiting the site to change its content by adding, removing, or editing the content
Term
Uniform Resource Locator (URL)
Definition
web site's unique address
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