Final Exam Flashcards
a large wide-area network created by the United States Defense Advanced Research Project Agency (DARPA)
ARPANET
a software application that enables computer users to access information on the World Wide Web
browser
piece of information sent by a web server and stored by the browser as text strings on a computer; the browser returns the cookie to the server the next time the page is referenced
cookie
used interchangeably with the word “component,” a device can be a drive, a scanner, or any computer-related object that acts as a tool to perform work
device
a device that modulates outgoing digital signals from a computer or other digital device to analog signals
gopher
(GUI) an interface that relies on visual clues, such as icons, to help users interact with electronic devices
graphical user interface
computer text accessed by users with a stylus, touch screen, keyboard strokes, or mouse
hypertext
a device that modulates an analog carrier signal and encodes it for digital information; it also demodulates carrier signals
modem
two or more computers connected to one another to form a network so that information can be shared
network
multimedia digital files that can be downloaded from the Internet
podcasts
a computer program that processes requests from another set of programs, called “clients”; the server serves the clients performing work for them; clients may run on the same computer as the server or connect to it through a network
server
a part of a larger whole (the CPU and hard drive, for instance, can be referred to as a computer components; components can also be much smaller than a drive and include integrated circuits, switches, and extremely small transistors)
component
a wireless local network that uses high frequency radio signals to transmit an Internet signal from a wireless router; often found in coffee shops and other public places
Wifi
a pen-like instrument used to access screen options on a PDA
stylus
the range of an area where users can access the Internet via high frequency radio signals that transmit an Internet signal from a wireless router
hotspot
a wireless technology standard for exchanging data over short distances
bluetooth
information processed or stored by a computer; examples include text documents, images, audio clips, and software applications; all are stored in files and folders on a computer’s hard, DVD, or CD drives
data
the theory that such computing characteristics as processing speed, memory capacity, and sensors double every two years; a rate described as exponential
Moore’s Law
a measure of data storage that is one thousand gigabytes in size
terabyte
software that prevents unauthorized users from accessing a private network
firewall
a production line that can extend around the entire world and involve hundreds of companies
supply chain
a multiple of a byte; eighty billion bytes
gigabytes
a multiple of a byte; one million bytesf
megabytes
