scanning devices Flashcards
(42 cards)
it reads the strange-looking numbers printed at the bottom of bank checks
MICR (Magnetic-Ink Character Recognition)
it reads pencil marks
OMR (Optical Mark Recognition)
it reads special preprinted characters
OCR(Optical Character Recognition)
it scans an image and sends it as an electronic signal over telephone lines
Fax Machine (Facsimile Transmission Machine)
it converts text, drawings, and photographs into forms
Imaging Systems/Image Scanner/ Graphics Scanner
they contain a microprocessor and a memory chip.
smart cards
It’s a plastic, laser-recordable card used with an optical card reader.
optical reader
they convert human speech into digital code.
Voice Recognition Systems
they record or play analog sounds
Audio- Input Device
signals that come from a VCR or a camera recorder
Video- Input Devices
they capture images in electronic form
electronic cameras
they collect specific kinds of data directly from the environment
sensors
It temporarily or permanently stores data used for processing and the output of such processing.
storage hardware
use a laser beam to pack information densely on are movable disk
optical storage
refers to storage devices that retain data and instruction in a relatively permanent (non-volatile) form.
secondary storage
sequential file storage represented by various arrangements of magnetized spots along the width of the tape
magnetic tapes
a metal plotter where data is represented by magnetized spots on the tracks.
magnetic disks
a recording of a data cell device capable of storing 400 million of data
magnetic strip
a continuous strip of paper wound on a reel where data is represented by holes punched on the paper.
paper tape
a recording medium of data represented by magnetized spots that are coated with a magnetically sensitive material divided into tracks.
drum
It provides a means for the user to view information produced by the computer system.
output hardware
long sheets of paper where data is represented through printouts.
continuous form
it is when an output is temporarily displayed on the screen
softcopy
two forms of ouput hardware
hardcopy and softcopy
