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79 terms

computer discovery 1-3 no terms

STUDY
PLAY
mouse keyboard
name two primary input devices:
true
most keyboards have similar structure so once you are familiar w/ one keyboard you can transfer those skills to other keyboards. true or false
computer
a comp keyboard incudesthe basic typing keypad with keys or buttons with letters or button with letter and numbers as well as several keys with cfharacters and special words to control ________ specific tasks
input commands respond to prompts type the text of documents
for what 3 reasons do you use these special key:
a
b
c
navigation
desktop and notebook comp keyboards include a __________ keypad which you can use to efficiently move the screen-based insertion point.
home end arrow keys
name the keys that most commonly appear in this navigation keypad area:
a
b
c
insertion point
what is another name for the cursor?
flashing vertical bar
the insertion point typically appears on the screen as a ________ ________ ___.
false
to operate a comp, a mouse is required. true or false
pointing
a mouse is a ________ device.
dots per inch
how is the sensitivity and accuracy of a laser mouse measured?
wire wirelessly
the mouse transmits the signals either using a ____ or _________
greater freedom of movement
a wireless mouse provides _______ _______ __ ________.
pointing sticks trackpads trackballs joysticks
list 4 other input devices that are typically used with notebook comps or gaming devices:
a
b
c
d
track point
what is another name for pointing stick?
trackpad
what is another name for touchpad?
touch screen
a _____ _______ is used as an input device on many tablet comps, PDSs, UMPCs, retail store self-checkouts, and info kiosks.
resisitive
touch screen tech is call _________ tech because it is not sysceptible to dust or water
stylus finger
how do you input using touch screen technology?
a
b
scanner
what input device us used for large amounts of text, pictures, articles, etc.?
microphone
a __________ is used as an input device that converts spoken or sound info to a digital format
speech-to-text
there are special application programs that can accept sound accept sound as input. What are these programs called?
graphics card display device
name the 2 key components of a comp display system:
a
b
CRT LCD plasma
display devices use one of three technologies. what are they?
a
b
c
CRT
which display device technology is the most bulky and is becoming outdated?
LCD
most comp monitors today us ___ tech.
display clarity low radiation emission portability compactness
list he 4 advantages of an LCD monitor:
a
b
c
d
flat panel
what is a more common name for LCDs?
LCD
which type of monitor is standard on notebook comps
plasma
which costs more LCD or plasma?
TV or computer
name 2 of the most comon uses of plasma screen technology
graphic card
what is the key to how fast a screen updates the info being displayed?
fast action games, 3D modeling, and graphics-intensive desktop publishing
name several applications for which speed is an important factor:
motherboard
where is the graphics card on a desktop comp located?
motherboard
where is the graphics card on a notebook comp located?
graphics card
what is the key to how images will be displayed inthe monitor?
resolution
the graphics card sends an image to the monitor at a specific ________.
picture element
what does pixel stand for?
supervid graphics array extended graphics array
what are two standard resolutions?
screen size dot pitch resolution color depth
what 4 factors determine image quality?
a
b
c
d
graphics
all of the above 4 factors are controlled by the ________ card.
screen size viewing angle width
what 2 factors should bbe considered in shopping for a monitor?
a
b
13 - 21 inches
what is the range for typical sizes of comp monitor screens?
dot pitch
___ _____ is the distance in millimeters between like-colored pixels, the small dots that form an image, and thus is used to measure images.
smaller
a ________ dot pitch results in a crisper image.
.26mm - .23 mm
what is the typical dot pitch range?
no
when shopping for a monitor, the specifications will include the dot pitch. can you customize this?
color bit
the numver of colors that a monitor and graphics card can display is referred to as _____ depth or ___ depth.
yes using the conrol panel
can the color settings for your monitor be customized? if so, how?
true color
resolution of 24-bit color depth is often referred to as ____ _____ and with this depth photographic-quality images can be displayed.
NTSC HDTV
to be able to use your comp monitor to watch TV, the display system must be equipped with _____ or ____ circuitry which allows it to accept television signals from an antenna or cable.
output hard
a computer printer is an ______ device that producces ____ copy comp-generated text or graphical images.
black ink and color
what two ink cartridges do ink-jet printers use?
small light weight inexpensive good color output
what are the advantages to ink-jet printers:
a
b
c
d
ink cost a lot
what is a disadvantage of ink-jet printers?
good for high-volume output good quality printouts produce more than ink-jet
what are the advantages of laser printers?
a
b
c
expensive
what is a disadvantage of laser printers?
no color
are black and white cartridges the same price for laser printers? Which cost more?
pro-quality images
what is an advantage of photo printers?
slow ink is expensive
what is a disadvantage of photo printers?
a
b
solid dot
at normal reading distance, a resolution of 900 dpi appears _______ to the human eye but when you get closer you can see the ___ pattern
2400-4800 dpi
what is the dpi for good quality printers?
2400 or higher
for magazine quality printouts, what should be the minimum dpi?
color printouts take longer
pages with text are quicker
what 2 factors should be considered when evaluating printer speed?
color
which takes longer to print- black and white or color
text
which prints faster? text or graphics
15-30 ppm
what is the rating for most printers used for personal or small business?
graphics
which takes more memory to print? text or graphics
64 mb and 120 mb
what is a typical amount of memory for a laser printer?
enviromentally friendly
what is the main advantage of duplex printers?
slow
what is a disadvantage of the duplex printer?
pages per month
a printer's duty cycle is usually measured in _____ ___ ______
shorter
a printer with a higher duty cycle will have a _______ life-span
3000 pages per month
what is the duty cycle for an average personal laser printer?
shorten the life of you printer
if you print beyond the specified duty cycle, what could happen?
USB port serial port paralell port network port
what are the for options for connectiong your printer to your comp?
a
b
c
d
you have to have a network
under what circumstances can you share one printer with other comps?
wired wireless
a netword printer connection can be ____ or _______.
can be placed in a location convenient or all netword users
what is the key advantage of a netword-ready printer?