Data Input 2
A microphone is an input device that converts sound into data.

Data Input 2

This Computer Science quiz is called 'Data Input 2' and it has been written by teachers to help you if you are studying the subject at middle school. Playing educational quizzes is a fabulous way to learn if you are in the 6th, 7th or 8th grade - aged 11 to 14.

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A QWERTY keyboard is an input device for data. In the world of Computer Science, inputting data to a computer is a crucial starting point and there are many ways to go about it.

See how much you have learned in your classes by trying our second quiz on the subject of Data Input.

1.
Which device converts images into digital data?
Microphone
Monitor
Pixelator
Scanner
2.
Which device converts sound into data?
DVD player
Loudspeaker
Microphone
MP3 player
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
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 stops fraud
these cards make credit card fraud impossible
These cards are more secure but cannot stop fraud
6.
Microphones can input sound, however .......
the microphones must have a 'Digital' sticker
the microphones must have optical inputs
the microphones need digital to analog converters
the sound needs converting to digital via a soundcard
Microphones produce analog 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
Magnetic ink is used to record data on bank checks
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
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
Author:  Duncan Daish

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