misy160 practice ch6/7/8

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HDTV

most advanced form of digital TV

SXGA

video standard has a typical resolution of 1280 x 1024

color depth

graphic processing unit's ___ is # of bits used to store info about each pixel

plasma monitor

display that uses gas plasma technology, which sandwiches a layer of gas between two glass plates

basic thermal printers

inexpensive over time, but the print quality is low and the images tend to fade

toner

printers creates images using a laser beam and powdered ink called ___

postage printer

special type of label printer that may have a built-in digital scale and prints postage stamps

20

21-inch monitor like the one in the accompanying figure may have a viewable size of ____ inches

DTV

what users are turning to for crisper, higher-quality output than they can achieve with analog television

pixel

single point in an electronic image

laser printer

a high-speed, high-quality nonimpact printer

Braille printer

alternative for blind users, outputs info in braille on paper

flat-panel display

lightweight display device with a shallow depth, such as an LCD monitor or plasma monitor, that does not use CRT technology

subwoofer

users can add it to boost the low bass sounds

most likely to use 30 inch monitor

power user

what uses internal miniature hard disks

media players, digital cams, smart phones
NOT laptops

microfiche

small sheet of film, usually about 4 inches by 6 inches, that stores microscopic images of documents

1-320BG

range of minitature hard disks storage capacities

single session disc

standard CD-ROM bc manufacturers write all items on disc at one time

storage

holds data, instructions, and information for future use

48X-75X

range of Current CD-ROM drives transfer rates

form

On desktop computers, platters have a(n) ____ factor, or size, of approximately 3.5 inches in diameter

disk controller

consists of a special-purpose chip and electronic circuits that control the transfer of data, instructions, and information from a disk to and from the system bus and other components in the computer.

capacity

number of bytes (characters) a storage medium can hold

current SSDs

have storage capacities of 16 GB to 256 GB and more

disk cache

Some computers improve hard disk access time by using a ____, which consists of memory chips that store frequently accessed items

kodak picture CD

type of CD-ROM that stores digital versions of a single roll of film using a jpg file format

DVD-ROM

type of optical disc that users can read from but not write to or erase.

3-12 mins

range for the access time of todays hard disks

reasons users subsrcibe to cloud storage service

save time by storing large files instantaneously, allow others to access files, store offsite back ups of data

screen saver

causes a monitor's screen to display a moving image or blank screen if no keyboard or mouse activity occurs for a specified period of time.

page

With virtual memory, which is illustrated in the accompanying figure, a ____ is the amount of data and program instructions that can swap at a given time.

kernal

core of an operating system that maintains the computer's clock, starts applications, and assigns the computer's resources, such as devices, programs, data, and information

stand-alone operating system

complete operating system that works on a desktop computer, notebook computer, or mobile computing device

windows phone 7

operating system that includes functionality, applications, and a user interface designed for specific types of smart phones.

CMOS chip

During a cold boot on a personal computer, the POST (power-on self test) results are compared with data in a ___

recovery disk

usually a CD that contains a few system files that will start the computer that computer can be booted from is hard disk is damaged

image viewer

utility that allows users to display, copy, and print the contents of a graphics file

queue

multiple documents line up in a(n) ____ in the buffer.

operating systems and utility programs

2 types of system software

UNIX

multitasking operating system developed in the early 1970s by scientists at Bell Laboratories

swap file

area of hard disk used for virtual memory bc it exchanges data, information, and instructions between memory and storage

restore program

reverses process and returns backed up files to original form in the event a backup file is used

hacker

someone who tries to access a computer or network illegally

fault-tolerant comp

a computer that continues to operate when one of its components fails, ensuring that no data is lost

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