問題一覧
1
this code number is represented on the product label by a pattern of vertical marks,or bars,called bar codes
bar codes
2
it can be as creative as an animated cartoon
video graphics
3
delivering input to a computer simply by looking,it responds to movements of the eye
looking
4
it means reducing the number of intermediate steps required between the organization of data and its processing
efficient data
5
there are many ways to produce and interact with screen graphics
graphics input devices
6
printer that places the image on a page without physically touching the page
non impact printers
7
types of non-impact printers
laser, inkjet, thermal, photo, plotters
8
it is by far the most common type of source input ,appearing in variety of ways
optical recognition
9
it is a device that produce printed paper
printers
10
most crt screens use a technology called?
raster scan technology
11
personal computers have occasionally sent primitive musical messages
music output
12
another source of input where you talk to the computer
voice input
13
it is designed to produce several kinds of output
computer system
14
types of impact printers
line printers, domatrix printers
15
one way of getting input directly from the source is to have a human to point a selection
touch screens
16
there are many different ways to output graphics
graphics output devices
17
write types of scanner
flatbed scanner, sheet fed scanner, handheld scanner, drum scanner, photo scanner, film scanner, portable scanner
18
it might seem wasteful to use color graphics to display what could more inexpensively be shown to managers as numbers in standard computer printouts
business graphics
19
abbreviated OCR, it also use a light source to read special characters and convert them into electrical signals to be sent to the cpu. can be read by both humans and machines
optical character recognition
20
write types of imaging devices
microscope with digital camera, whole slide scanner, robotic microscopes, image analysis system
21
abbreviated OMR, it is sometimes called. mark sensing ,because a machine senses marks on a piece of paper
optical mark recognition
22
it may be the users first interaction to input
screen response
23
it lets you create your own images,this devic4 has a special stylus that you can use to draw or trace images
digitizing tablet
24
It is usually part of a personal computer or part of a terminal that connected to a computer somewhere
keyboard
25
it uses optical recognition systems that have a light between beam to scan input data to convert it into electrical signals,which are sent to the computer for processing
scanners
26
abbreveiated MICRA,is a method of machine-reading characters made of magnetized particles
magnetic ink character recognition
27
in this area computers are used to create two and three dimensional picturesnof everything from hand tools to tractors
computer aided design
28
it uses some sort of physical contact with the papers
impact printers
29
it is an jnput device with a ball on its underside that is rolled on a flat surface
mouse
30
it is the process of enabling machines to talk to people
speech synthesis
31
it consists if an input device,an output device,and a communications link to the main computer
terminal
32
it may be located in a warehouse or factory wherever the activity that is generating the data is located
data collection devices