Type
Image input
device
Description
Image
scanner
A device that captures photographs, pictures, printed materials, and handwritten characters as digital
data. There are “flatbed”, “sheet feeder”, and “portable” scanners.
Digital
camera
Similar to a regular camera, it photographs scenery
and people, but captures the images as digital data.
Barcode
reader
A device that optically reads barcodes placed on
products and other items. Used as an input device
for POS terminals. There are “stationary” and “portable” barcode readers.
A device that optically reads handwritten characters
and printed characters. OCR for personal computers read images with an image scanner, and use
OCR software for character recognition.
OMR (Optical
Mark Reader)
device
A device that optically reads marks that are darkened with a pencil on an answer sheet.
Sound input
device
A device that uses a microphone to input data or
operate a personal computer by voice.
Handwritten
character
input device
A device that reads characters that are handwritten
on a flat device. Can also be used in place of a
mouse to input positional information. Used on
electronic personal organizers and notebook computers.
Magnetic
card reader
A device that reads information from magnetic
stripes attached on magnetic stripe cards such as
credit cards and debit cards.
OCR
Abbreviation for “Optical Character
Reader.”
Reference
OMR
Abbreviation for “Optical Mark Reader.”
Reference
CCD
A “CCD” is a semiconductor device that
converts the intensity of light called a
“light-sensitive element” or “pixel” into
an electrical signal. Devices such as
digital cameras use an array of multiple
CCDs to convert and store changes in
light, into independent electrical signals
for each pixel. CCDs with a higher
number of pixels produce more detailed
images. Abbreviation for “Charge Coupled Device.”
Computer system
OCR (Optical
Character
Reader)
device
Reference
Chapter 8
Other input
devices
Nam
Barcode reader
Image scanner
OCR
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