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Keyboard data entry
the most common input device
suitable for a wide range of applications
­ entering programs
­ typing all kinds of documents using a word processor
­ entering personal details of customers or patients at a
hospital, etc.…read more

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Keyboard data entry ­
Disadvantages
Data entered at a keyboard is commonly copied
from a source document, and as such
­ It is easy to make transcription errors ­ that is, copy
the data wrongly from the document
­ It is time-consuming
­ Data entry operators who enter data all day every day
are prone to repetitive strain injury (RSI), a condition
which renders them unable to do any further data
entry…read more

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Key-to-disk systems
keyboard
Supervisor's
console
Computer
keyboard Disk storage
keyboard
Magnetic
tape
storage
keyboard…read more

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Voice data entry
The user speaks the text into a microphone
Special software interprets the text and
displays it on a screen
Text may be edited using the keyboard and
exported to a word processing package
such as Word.…read more

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Scanners and OCR
An optical scanner can be used to scan
graphical images and photographs
Software can then be used to edit or touch
up the images
Scanners can also be used to read typed or
even hand-written documents…read more

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Scanners and OCR (continued)
OCR (Optical Character Recognition)
software can then be used to interpret the
text and export it to a word processor or
data file
Scanners are also used to input large
volumes of data on preprinted forms such
as credit card payments, where the
customers account number and amount
paid are printed at the bottom of the
payment slip.…read more

Page 8

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Magnetic Ink Character
Recognition (MICR)
All banks use MICR for processing cheques.
Along the bottom of a cheque the bank's sort code,
customer account number and cheque number are
encoded in special characters in magnetic ink.
The amount of the cheque is encoded in magnetic
ink when it is handed in at a bank.
The cheques can then be processed extremely fast
by high-speed MICR devices that read, sort and
store the data on disk.…read more

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MICR(continued)
MICR has several advantages for processing
cheques:
­ It is hard to forge the characters
­ The characters can be read even if the cheque is
crumpled, dirty or smudged
­ The characters are readable by humans, unlike bar
codes…read more

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Other data capture methods
Magnetic stripe
Smart cards
Optical Mark Recognition (OMR)
Bar code reader or scanner
Hand-held input devices
Digitiser (Graphics tablet)…read more

Comments

Mr A Gibson

If you know your stuff about Data Capture then this would prove a useful detailed prompt for revision - download it to your mobile device for easy access..!

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