cgs2100 chapter 3 quiz

which of the following refer to ultra-high-definition television displays?

-4K UHD -8K UHD -Ultra HD

Select the acronyms that describe a type of computer monitor

-LED -LCD

select input devices often found at a point-of-sale station

-bar code or UPC reader -keypad -UPC scanning wand

which are true regarding a display's refresh rate?

-describes how fast each pixel in a display is updated -the higher the refresh rate, the smoother the video -videos play best with refresh rates at even multiples of the frame rate

which are true regarding a screen's resolution?

-equals the number of pixels in a display -measures image quality

select characteristics of a plotter

-prints large graphic designs -mechanically moves a pen over a large sheet of paper

which of the following are true regarding high definition displays?

-typically have aspect rations of 16:9 -typically have 1,080 horizontal lines of pixels

how can you attach a mouse or other pointing device to your computer?

-with a bluetooth connection -with and IrDA connection -with a wire through a USB port

though currently expensive, curved and paper-thin displays are possible using __ display technology

OLED

printer speed is described using which acronym

PPM

RFID stands for

Radio Frequency Identification

smartphone cameras work by focusing incoming light onto what type of array that captures images?

active pixel scanner

the art and science of creating output that provides info in the most useful manner is called

ergonomics

number of times per second a frame in a video is advanced is

frame rate

because of their compact size, touchpads are most often used with _____ computers.

laptop

using reflective material to store data that can be read using a laser is called __ media storage

optical

with optical zoom, resolution ____ when focusing on distant objects.

remains the same

the accuracy of a digital recording is determined by the device's __ rate

sampling

the distance between two adjacent sub-pixels on a display is referred to as

dot pitch

select advantages of a point-and-shoot camera over a smartphone camera

-point-and-shoot cameras often have larger pixel sensor arrays, providing higher resolution -point-and-shoot cameras use a more highly developed photo technology

MEMS chips are used in which of the following?

-smartphones -hearing aids

qualities that make a trait useful for biometic recognition

-the trait must not change over time -everyone must have the trait -the trait must be measurably different with each person