Discovering Computers
the _____ is an alternative to DVI that also supports HDML (310)
DisplayPort
______ is a technology that sends resistance to a device in response to actions of the user (326)
Force feedback
USB hub (234)
a device that plugs in a USB port on the system unit and contains multiple USB ports in which you plug cables from USB devices
head-mounted display (HMD) (308)
a display in a helmet, goggles, or glasses
pointing stick (266)
a pressure-sensitive pointing device shaped like a pencil eraser that is positioned between keys on a keyboard
processor (213)
a single chip with two or more separate processor cores.
heat sink (219)
a small ceramic or metal component with fins on its surface that absorbs and disperses heat produced by electrical components such as a processor.
flash memory (228)
a type of nonvolatile memory that can be erased electronically and rewritten, similar to EEPROM
Windows ReadyBoost (227)
allocates available storage space on removable flash memory devices as additional cache.
display device (306)
an out put device that visually conveys text, graphics, and video information
the processor is also called the ________ . (213)
central processing unit (CPU)
audio output device (323)
component of a computer that produces music, speech, or other sounds, such as beeps
backside bus (237)
connects the processor to the cache
memory (223)
consists of electronic components that store instructions waiting to be executed by the processor, data needed by those instructions, and the results of processing the data
The _______ is the component of the processor that directs and coordinates most of the operations in the computer. (214)
control unit
video capture card (275)
converts analog video signal into a digital signal that a computer can process.
aspect ratio (310)
defines a display's width relative to its height
gaming keyboard (261)
designed especially for people who enjoy playing games on the computer.
LCD monitor (307)
desktop monitor that uses a liquid crystal display to produce images
a CRT monitor's viewable size is the ______ measurement of the actual viewing area provided by the screen in the monitor (313)
diagonal
a(n) _______, which is an external device that attaches to a mobile computer or device, contains a power connection and provides connections to peripherals; it usually also includes slots for memory cards, optical disc drives, and other devices. (236)
docking station
ink-jet printer resolution is measured by the number of _____ a printer can print (316)
dpi -dots per inch
a(n) _______ has a design that reduces the chance of wrist and hand injuries. (262)
ergonomic keyboard
SAS (serial-attached SCSI) is a newer type of SCSI that transmits more reliably, but at slower speeds, than parallel SCSL. (235)
false - SAS transmits faster than parallel SCSL
brightness describes the difference in light intensity between the brightest white and the darkest black that can be displayed on an LCD monitor (310)
false - contrast ratio describes the differenece
An HDMI port combines s-video with high-definition (HD) television and video (310)
false - it combines DVI with high-definition HD
an impact printer forms characters and graphics on a piece of paper without actually striking the paper (322)
false - it does strike the paper often making it noisy.
a headset is a device that functions as both headphones and a Web cam (324)
false - it functions as headphones and microphones
The processor holds data waiting to be processed and instructions waiting to be executed (213)
false - it interprets and carries out the basic instructions that operate a computer.
Hi-Speed USB is a more advanced and faster USB, with speeds 100 times higher than that of its predecessor. (234)
false - it is 40 times higher than that of its predecessor.
resolution is the smallest element in an electronic image (273)
false - it is the number of horizontal and vertical pixels in a display device
a whiteboard is a meeting between two or more geographically separated people who use a network or the Internet to transmit audio and video data (276)
false - it is video conferencing not whiteboard
a printout in landscape orientation is taller than it is wide (313)
false - it is wider than it is tall
with bluetooth printing, a computer or other device transmits output to a printer via infrared light waves (314)
false - it transmits output via radio waves
the command associated with a function key performs the same task within each program with which you are interacting. (260)
false - the function keys change or vary between programs
touch-sensitive pads typically contain buttons and/or wheels that are operated with a thumb or finger. (267)
false - they contain buttons only
most mobile computers and devices do not integrate the display and other components into the same physical case (306)
false - they do integrate the display and other components into the same case.
an LCD projector uses tiny mirrors to reflect light, which produces crisp, bright, colorful images that remain in focus and can be seen clearly even in a well lit room (326)
false - they use liquid crystal display technology, attaches directly to a computer and uses its own light source to display.
to capture a signature, a user speaks his or her name into a signature captured pad (268)
false - user writes his or her name on the captured pad and it is transferred to the computer
ROM chips, called _____, contain permanently written data, instructions, or information (228)
firmware
nonimpact printer (315)
forms characters and graphics on a piece of paper without actually striking the paper
kiosk (266)
freestanding computer, usually includes a touch-screen
a(n)_______ is part of the motherboard and connects the processor to main memory. (237)
front side bus
with ____, the computer will detect human motions. (286)
gesture recognition
architects, mapmakers, designers, artists, and home users create drawings and sketches on a _______ (268)
graphics tablet (268)
gamepad (270)
held with both hands, controls the movement and actions of players or objects in video games or computer games
the primary disadvantage of multifuntion peripherals is that ____ (320)
if the multifunction peripheral breaks down, all functions are lost
ergonomics (262)
incorporate comfort, efficiency, and safety in the design of the workplace.
insertion point (261)
indicates where the next character you type will appear
a(n) _____ is a touch-sensitive device, resembling a dry-erase board, that displays the image on a connected computer screen (326)
interactive whiteboard
access time (229)
is the amount of time it takes the processor to read data, instructions, and information from memory.
examples of output that primarily contain text-based documents are ____ (304)
letters reports and email messages
supercomputers use ______ for applications such as artificial intelligence and weather forecasting (220)
massively parallel processing
touch screens that recognize multiple points of contact at the same time are known as ____ (266)
multi-touch
______ allows users to record, compose, mix, and edit music and sounds (274)
music production software
data collection device (282)
obtains data directly at the location where the transaction or event takes place
a(n) ______ is an external device that provides connections to peripherals through ports built into the device. (236)
port replicator
some phones use ____, where you press one key on the keypad for each letter in a word and software on the phone predicts the word you want (262)
predictive text input
hard copy (313)
printed information that exists physically and is a more permanent form of output
vPro technology (217)
provides the capability to track computer hardware and software, diagnose and resolve computer problems, and secure computers from outside threats.
tactile output (327)
provides the user with a physical response from the device
RFID is a technology that uses _____ to communicate with a tag placed in or attached to an object, and animal or a person. (280)
radio signals
a processor contains small, high-speed storage locations, called _____, that temporarily hold data and instructions. (216)
register
candela (310)
standard unit of luminous intensity
trackball (265)
stationary pointing device with a ball on its top or side
game controller (270)
the input device that directs movements and actions of on-screen objects.
motherboard (212)
the main circuit-board of the system unit.
A byte is the smallest unit of data the computer can process (221)
true
Both USB 2.0 and USB 3.0 are backward compatible, which means they do not support older USB devices. (234)
true
Current processors include advanced transfer cache (ATC), a type of L2 cache built directly on the processor chip (227)
true
Read-only memory refers to memory chips storing permanent data and instructions. (228)
true
Replacing a motherboard is a fairly complicated process, whereas replacing a processor is much simpler. (218)
true
The speed of the system clock is just one factor that influences a computer's performance.
true
The system unit is a case that contains electronic components of the computer used to process data. (210)
true
USB 3.0 is more than 10 times faster than USB 2.0 (234)
true
When computers power is turned off, volatile memory loses its contents. (223)
true
a DVD kosk is a self-service DVD rental machine that connects to a host computer through a network (285)
true
a flatbed scanner works in a manner similar to a copy machine except it creates a file of the document in memory instead of a paper copy (278)
true
a keyguard is a metal or plastic plate placed over the keyboard that allows users to rest their hands on the keyboard without accidentally pressing any keys. (286)
true
a touchpad is a small, flat, rectangular pointing device that is sensitive to pressure and motion (265)
true
an all-in-one device is a single device that looks like a printer or a copy machine but provides the functionality of a printer, scanner, copy machine, and perhaps a fax machine (320)
true
an input device is any hardware component that allows users to enter data and instructions into a computer (260)
true
information on a display device sometimes is called soft copy (306)
true
once data is in memory, the computer interprets and executes instructions to process the data into information (258)
true
scanners capture data from a target document, which is the original form of the data (277)
true
the form of output generated by a computer varies depending on the hardware and software being used and the requirements of the user (304)
true
widescreen LCD monitors are wider than they are tall (307)
true
with game consoles, the output device often is a television (312)
true
nit (310)
unit of visible light intensity equal to one candela per square meter
______ is the computers capability of distinguishing spoken words. (274)
voice recognition
_____ uses organic molecules that produce an even brighter, easier-to-read display than standard TFT displays (308)
OLED
