Computer Input and Output
Select common printer manufacturers: 1) Cannon 2) HP 3) Brother 4)Lexmark 5) Windows
1-4
Which printer? Makes fast single copy color pages Popular for home use Low initial cost Uses ink
Inkjet
To create an image, the technology used by smartphones is called active _____ ______
pixel sensor
Creates imaging using cells of ionized red, blue, and green gas
plasma
microphone touch screen motion sensors front and rear cameras multiple buttons and switches micro USB port power port are all?
smartphone input devices
Receipts are printed on _______ paper
thermal
Thermal printing: Uses ______ paper Paper turns ______ when heated Some use 2 color (_____ and _____) by heating at ______ temperatures Much _____ expensive than using ink or toner Commonly used for printing _____
thermal black red and black , different less receipts
Television displays with resolutions of at least 3840 x 2160 pixels are referred to as ______ HD
ultra
Optical Media: Includes ______'s and ___-____ Data is stored using ______ material housed on a ____ _____ A ____ _____ "reads" the reflected data DVDs use ______ (_____ spectrum) laser Blu-ray technology uses _____ wavelength (___-____ laser) Blu ray players can read _____ ______
DVD and blu ray reflective material , plastic disk laser beam longer (red spectrum) shorter (blue-violet) both spectrums
Which is a short range wireless technology used for data transfer and electronic payment? IrDA RFID Wifi NFC
NFC
Speech recognition uses which of the following characteristics 1) voice frequency 2) linguistics 3) speech rhythms 4) voice pitch
1, 3, 4
Select the features common in DSLR cameras 1) often allow for interchangeable lenses 2) Rarely include optical zoom 3) Typically have larger active pixel sensor arrays 4) Usually have a mirror that allows the photographer to look directly through the lense
1, 3, 4,
CNTRL+P = CNTRL+S = CNTRL+Z= CNTRL+ESC=
CNTRL+P = print CNTRL+S = save CNTRL+Z= undo CNTRL+ESC= start menu
Printer manufacturers advertise the quality of their products by stating how many ___ they produce
DPI
May have a relatively slow refresh rate since it relies on molecular movement
LCD
By efficiently turning electrons into protons, _____ displays can provide very bright screens with very little energy
LED
Which printer? Far faster when printing multiple copies Popular in office Higher initial costs Uses toner
Laser
The technology that allows a computer to serve as a sound studio is known as a _____
MIDI
Has the best possible contrast ratio
OLED
The number of bits describing each pixel is referred to as
color depth
1920 vertical lines of pixel and 1080 horizontal lines of pixel defines a high ______ display
definition
The study of human factors related to the things people use is called ________
ergonomics
Virtual keyboards, buttons, cameras, and microphones are examples of some of the _______ devices found on a typical smartphone
input
Toner is drawn to a drum when creating a hard copy using a ____ printer
laser
Number of times per second a frame in a video is advanced is the definition of frame _____
rate
when discussing digital camera photo quality, one of the most important factors is how many pixels are used to create the photo image. this equals the photo's _____.
resolution
Point and shoot digital cameras use the _____ technology as smartphone cameras
same
Point and shoot cameras: Can have a bigger _____ _____ = higher _____ Can have an extending lens = _____ ______
sensor array = higher resolution = optical zoom
A type of camera that allows you to see directly through the lens is a _____ camera
slr
In photography, there are two ways to zoom-in on distant objects: digital zoom and ____ zoom
optical
Items that can be connected to a digital device are referred to as ______.
peripherals
the accuracy of digital recording is determined by the _____ rate
sampling