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Data Input 02
A microphone is an input device that converts sound into data.

Data Input 02

Data input is how facts get into a computer system. Explore forms, input devices, and checks that help keep data accurate and useful.

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(quiz starts below)

Fascinating Fact:

Many cards also use a microchip because it can store encrypted data and reduce counterfeiting, although it cannot stop fraud completely.

In KS3 ICT, data input is about getting information into a system in a reliable way. This includes manual entry, scanning, card readers, and sensors, plus checks that spot errors before data is saved and used.

Key Terms

  • Input device: Hardware that sends data into a computer, such as a keyboard, scanner, card reader, or microphone.
  • Validation: An automatic rule that checks data is sensible, for example a range check for age or a format check for a postcode.
  • Verification: A way to reduce mistakes by checking data has been entered correctly, such as double entry or proofreading.

Frequently Asked Questions (Click to see answers)

What is the difference between validation and verification?

Validation checks whether data follows rules, such as being in the right range or format. Verification checks whether the data was entered correctly, for example by typing it twice and comparing.

What are common data input devices in KS3 ICT?

Common input devices include a keyboard and mouse, scanners for paper documents, microphones for voice input, cameras for images, and sensors or data loggers for readings like temperature and light.

How does a bank card reader use data input?

A card reader inputs data from the card so a system can identify the account and process a transaction. Using the correct format and security checks helps reduce errors and unauthorised copying.

Try These Related Quizzes

1 .
Which device converts documents and images into digital data?
Microphone
Monitor
Pixelator
Scanner
It uses a moving strip of light to build up the copy of the document or image
2 .
Which device converts sound into data?
DVD player
Loudspeaker
Microphone
MP3 player
Software can then be used to turn it into a digital recording, a voice command or text in a word processor
3 .
Credit cards have a magnetic stripe on the back .......
to record how much money is left in the account
to stop the wrong person using the card
to store fingerprint details of the account holder
to store information to identify the account holder
Swiping the card in a reader transfers the information to the computer system where it can be processed as needed
4 .
The magnetic stripe on a credit card is read by a .......
magnetic card reader
magnetic domain reader
magnetic stripe reader
stripe reader
The stripe stores basic identifying information
5 .
Credit cards have a microchip added because .......
chips can hold much more data about the customer
the chips store encrypted data reducing counterfeiting
the chips store encrypted data which completely stops fraud
the chips hold information about the bank
These cards are more secure but cannot stop fraud totally
6 .
Microphones can input sound, however .......
the microphones must have a 'Digital' sticker
the microphones must have optical inputs
the microphones need digital to analogue converters
the sound needs converting to digital via a soundcard
Microphones produce analogue electrical signals
7 .
Banks often use a MICR device. This stands for .......
Magnetic Ink Character Reader
Micro Ink Computer Reader
Micro Interface Computer Reader
Multi Intelligent Core Responder
One use of magnetic ink is to record data on bank cheques
8 .
Sensors are hardware devices which .......
detect real-world properties and converts them to data
detect what is happening in the software
flash when there is an error detected
make sure that any input data is valid
Examples of sensors are light and temperature sensors as used in science or geography datalogging experiments and investigations
9 .
Which of these is not an input sensor?
Life-form sensor
Light sensor
Moisture sensor
Photo-transistor
A 'life-form' sensor is purely sci-fi - at the moment!
10 .
Computers with MIDI can input data from .......
car engine diagnostic sensors
digital radio broadcasts
Met Office weather sensors
musical keyboards
MIDI - Musical Instrument Digital Interface
You can find more about this topic by visiting BBC Bitesize - Data and databases

Author:  Duncan Daish
ICT Play this quiz again

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