Input/output - CGS 2100 Midterm

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

Active pixel scanner

Select the characteristics of thermal printing

Commonly used for printing receipts, Paper turns black when heated

Select the characteristics of audio output

Converts electrical impulses into air movement, Digital devices use digital-to-analog converters

Printer manufacturers advertise the quality of their products by stating how many ________ they produce

DPI

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 is true regarding the length of a USB cord?

In general, the more data being transmitted, the shorter the cord should be

Entering text in a word documenT

Input

Most laptops, tablets, and smartphones use a(n) ________ display

LCD

The technology that uses the reflection of a laser of the graphite left by a #2 pencil to determine if a bubble has been filled in is called

OMR

Select the features common in DSLR (Digital Single-Lens Reflex) cameras

Often allow for interchangeable lenses, Usually have a mirror that allows the photographer to look directly through the lens

Printer speed is described using which acronym?

PPM

Using cells of ionized gas to create images, ________ displays are actually becoming less popular

Plasma

Select the characteristics of a projector

Usually requires a darkened environment, Allows large audiences to view digital output, Usually used with a screen

Which of the following are output?

a YouTube video displayed on a screen, an anti-lock brake system applying brakes

When discussing digital cameras or smartphone cameras with APS CMOS, APS stands for ________

active pixel sensor

MEMS chips are used in which of the following?

hearing aids, smartphones

Lower range tones generally require ________ speakers

larger

Examples of input devices include

mouse, keyboard, speaker

Select the advantages of a point-and-shoot camera over a smartphone camera

often have larger pixel sensor arrays, providing higher resolution, being thicker often come with optical zoom capability

A printout of a spreadsheet

output

Select the current uses for RFID tags

pet identification, package tracking, inventory tracking

The number of pixels in a display is called the display's ________

resolution

The number of pixels in an image is called the image's ________

resolution

Data from the hard drive reaches the CPU ________ than data from the RAM

slower

Select the output devices

televisions, printers

To create an image with a laser printer ________ is(are) drawn to the drum

toner

Most smartphones and tablets produced today use a ________ keyboard

virtual

A camera that takes photos or streams video into a computer or over the Internet is called a ________

webcam

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

Bluetooth, USB, IrDA connection

A port that allows the transfer of high quality video and audio signals is called a(n) ________ port

HDMI

This technology allows musicians to create written sheet music simply by playing an instrument

MIDI

Apple Pay uses ________ for payment transfer

NFC

Commonly used for receipts

Thermal printer

What type of port do most digital devices use to attach peripherals?

USB

The technology that allows any text, even handwritten scrawls, to be digitized is known as optical ________ recognition

character

Uses ink cartridges

inkjet printer

Saving a file to the cloud

storage

Select the smartphone input device

touchscreen or keyboard

Which statements refer to a display's contrast ratio?

Describes the difference in brightness, Luminance of white pixels compared to black pixels

Also known as additive manufacturing (AM), ________ printing sprays successive layers of material to create an object.

3D

Select the statements that refer to color depth

Also known as "bit depth", A measure of the accuracy of the color of each pixel, Specifically, the number of bits of data describing each pixel in a display

Select the popular video teleconferencing applications

Apple Facetime, Microsoft Skype, Google+ Hangouts

Select the true statements regarding an LED display

Can be extremely thin, Great for well-lit areas, Extremely energy efficient

Though currently expensive, curved and paper-thin displays are possible using ________ display technology

OLED

Television displays with resolutions of at least 3840 x 2160 pixels are referred to as ________

UltraHD

Most touch pads use ________ to sense when a finger has moved across the pad.

capacitance

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

dot pitch

The machine cycle consists of which four steps?

fetch, decode, execute, and store

The smallest controllable element of an image is called a(n) ________

pixel

A combination input and output device that allows users to interact with large computer displays that is sometimes found in classrooms is called an interactive whiteboard or a ________

smartboard

RFID stands for which of the following?

Radio Frequency Identification

Select the traits that are currently used for biometric identification

fingerprints, irises, stride

Recording a song using MIDI

input

Uses toner cartridges

laser printer

Select the peripherals

monitor, printer

With ____ recognition technologies, frequency, pitch, speech rhythms, and other characteristics are charted and compared to existing records

voice

Playing a song from Spotify

output

Select the technologies used by facial recognition software

skin texture analysis, feature charting, 3-D mapping

Select the acronyms that describe a type of computer monitor

LED, LCD

Select the characteristics of a plotter

Prints large graphic displays, Mechanically moves a pen over a large sheet of paper

Select the statements that refer to the term "dot pitch"

The distance between two adjoining sub-pixels in a display, The closer the spacing (the smaller the dot pitch) the sharper the image

Which of the following are true regarding high-definition displays?

Typically have aspect ratios of 16:9, Typically have 1080 horizontal lines of pixels

Select the input devices often found at a point-of-sale station

UPC scanning wand, keypad, bar code or UPC scanner

The width of a screen compared to the height of a screen is referred to as ________

aspect ratio

A device commonly used for checkout in stores, that measures the reflection of a laser beam, is called a ________ reader

barcode

This technology provides short-distance wireless communication between electronic devices using extremely low power radio signals

bluetooth

Using a stylus and touch pad to map the signature and also measure pressure, pen angle, pen up/down, speed, etc., is known as what type of signature recognition?

dynamic

The number of times per second a frame in a video is advanced is the definition of ________

frame rate

This type of analysis or walking stride identification is valuable because it can be used at night or through walls with infrared cameras or even with satellite imagery

gait analysis

Relatively rugged, water-resistant video cameras that allow users to film high-definition video under harsh conditions, such as on ski mountains, in the ocean, or at high altitudes are called extreme-action video cameras or simply a ________

gopro

These facilitate getting data and information into your computer

input devices

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

optical

An input, output or storage device connected to a computer is known as a(an) ________

peripheral

Used for drafting or blueprints

plotter

Select the factors that should be considered when purchasing external speakers for a digital device

sound quality, portability, price

Devices allowing data to be retained when your computer is shut down are called ________ devices

storage