Chapters 1-2 Computer Review
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An____ is any hardware component that conveys information to one of more people near the computer (i.e. not over a network).
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Output device
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In order to send data across the Internet, the information is broken down into small pieces call____ that can then be transmitted. By breaking the data into these small chunks, multiple users can make use of a single communication line.
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Packets
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The major carriers of network traffic on the Internet are collectively known as the________.
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Internet backbone
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An_____ is the numerical address of a single computer attached to the Internet. It takes the form of 4 period separated numbers such as 122.68.11.23. Without this address it is impossible to either send or receive information
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IP address
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Notebook computers generally are more expensive than desktop computers with equal capabilities.
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True
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________ software consists of programs designed to make users more productive and/or assist them with personal tasks, and include Web browser, word processing software, and spreadsheet software.
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Application
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_____ is the process of transferring data in a continuous and even flow, which allows users to access and use a file while it is transmitting.
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Streaming
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- search tool that runs a query against a large database of pages automatically indexed form the web
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Search Engine
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- agency credited with creating the early Internet
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ARPA
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- geographically limited computer network that spans a room or a building
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LAN
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- Language consisting of tags that make up a webpage.
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HTML
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- Search tool that presents a variety of categories the user can browse to find what they want
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Directory
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- Informational website consisting of time stamped articles.
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Blog
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- computer network that connect together a campus of company, it is usually built from smaller networks within the company or school.
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WAN
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- website that offers a variety of Internet services from a single convenient location.
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Portal
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- computer that functions as a component in a larger product.
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Embedded
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- Clickable text that can take one to a resource on the web.
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Hyper text
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- server on the Internet that translates domain names such as google.com into their numerical equivalent for transmission across the Internet.
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DNS
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- unmanned aircraft used by the air force for reconnaissance and basic strike missions.
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Predator
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-specialized computer that sends information along the proper path across the Internet based on numerical Internet addresses.
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Router
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Many search engines use a program, called a ______, to build and maintain lists of words found on websites.
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Spider
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Usually open to modification by the public
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A wiki
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A computing phrase---- known as______ points out that the accuracy of a computer's output depends on the accuracy of the input.
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Garbage in, garbage out
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The______ is the main part of the computer that contains the components responsible for most of the computer's processing. It typically includes the chassis, power supply, motherboard, processor, hard disk drives, optical drives, and any expansion cards.
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System unit
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A _____ provider is a business that provides individuals and companies access to the Internet for free or for a fee.
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Access
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A web _____ is a collection of related webpages and associated items, such as documents and pictures, stored on a web server
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Site
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______ is an unsolicited e-mail message or newsgroup posting sent to many recipients or newsgroups at once.
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Spam
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______ consists of a series of instructions that tells the computer what to do and how to do it
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software
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With weights that exceed 100 tons, desktop computers can store more than 20,000 times the data and info than an average supercomputer.
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False
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Cameras small enough to swallow- sometimes called cochlear implant- take pictures of the inside your body
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False
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The components of a domain name are separated by
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Periods
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Application software serves as the interface between the user, the system software, and the computer hardware.
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False
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_____Enables users to actually speak to other users over the Internet.
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VoIP
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A computer contains many electric, electronic, and mechanical components known as ______.
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Hardware
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No single person, company, institution, or government agency controls or owns the Internet.
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True
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The difference between a wiki and a blog is that users cannot modify original posts made by the blogger.
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True
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A_____ is a program that extends the capability of a browser.
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Plug-in
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You interact with a program through its_____, which controls how you enter data and instructions and how information is displayed on the screen.
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User interface
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Although it is an inexpensive way for users to connect to the Internet,____ is slower speed technology.
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A dial up connection
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A_____ is an electronic device, operating under the control of instructions stored in its own memory, that can accept data, process the data according to certain rules, produce results, and store the results for future use.
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Computer
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A____ is a special search tool in which al the sites in the tool's database have been evaluated and added by experts. An example of this kind of site would be http://www.ipl2.com where librarians have organized a variety of Internet resource.
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Virtual library
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On a network, the major differences between the server and the client computers are that the server ordinarily has_______.
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More power, more storage space, and expanded communication capabilities
