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Data Input 01
The most common input device is a 'QWERTY' keyboard.

Data Input 01

Data input is how information gets into a computer system. Learn about fields, data types, and simple checks so data is stored correctly and ready to use.

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Fascinating Fact:

Data can be entered in different formats, such as numbers, text, dates, and Boolean values like true or false.

In KS3 ICT, data input is about entering data into the right place and in the right format. Good input uses clear field names, suitable data types, and sensible checks so mistakes are spotted before data is saved.

  • Field: A single category of data in a record, such as surname, postcode, or date of birth.
  • Data type: The kind of data a field can store, such as whole numbers, text, or a yes or no value.
  • Validation: An automatic check that data follows rules, such as a range check for age or a format check for an email address.
What is data input in ICT?

Data input in ICT is the process of entering raw facts into a computer system. This can be done by typing, importing a file, or using an input device such as a scanner or microphone.

What is a data type in a database?

A data type is a rule that controls what kind of data a field can hold. It helps the system store and process data correctly, for example keeping numbers as numbers instead of letters.

What does Boolean mean in ICT?

Boolean means a value that has only two possible states. In ICT, it is often used for questions with two outcomes, such as on or off, yes or no, or true or false.

1 .
Input devices are .......
firmware
hardware
software
Tupperware
Hardware is the word used to describe any of the physical parts of a computer system
2 .
An input device can be classed as .......
manual or automatic
semi-automatic or fully electronic
manual or hydraulic
none of the above
Examples of automatic input devices are a magnetic stripe reader and optical mark readers. You may think these are manual as a person needs to move the magnetic stripe or the sheet of paper but they are not - the device inputs the data to the computer, not the person holding the magnetic stripe or paper
3 .
The most common input device is a .......
concept keyboard
GKOS keyboard
MIDI keyboard
QWERTY keyboard
The QWERTY keyboard layout was developed during the 1870s when mechanical typewriters were first made
4 .
Which is not a computer input device?
Barcode reader
Flatbed scanner
Joystick
Laser printer
A printer is an output device
5 .
QWERTY keyboards are so called because .......
it is the order of the keys on the first row of letters
it had to be called something
QWERTY means typewriter in Spanish
they were named after James Qwerty their designer
This was the best way to avoid the keys of a mechanical typewriter sticking together when they were pressed quickly. There is no reason why QWERTY keyboards should be used for computers other than people are used to them
6 .
Touch screens are used for input at cash machines .......
because they are cheaper than keyboards/keypads
because they are faster to process data
because they are harder to reprogram than keyboards
because they are more robust than keyboards
They don't contain moving parts
7 .
Concept keyboards are used in restaurants because .......
each key has a word or easily recognisable picture
it doesn't matter if drinks get spilled on them
they can add the price of a whole meal without mistakes
they need little staff training to use efficiently
The pictures on the keys make them quick and easy to use
8 .
A mouse has movement sensors. These sensors .......
calculate where the cursor is on the screen
measure the movement of the mouse in two directions
detect the movement of the mouse over the surface it is on
work out the direction and distance the mouse has moved
Software in the computer converts the signals from the mouse into movements of the cursor on the screen
9 .
Photographers often edit their digital pictures .......
using a Graphics table
using a Photo tablet
with a Graphics lozenge
with a Graphics tablet
Some have a display so you can see the image develop under the stylus. Others are linked to a separate screen
10 .
Editing digital photos on a Graphics pad .......
gives better quality results than a mouse
is easier and more accurate than using a mouse
is hard - Graphics pads are only used for CAD work
is more efficient than using a joystick
Graphics pad and graphics tablet mean the same
You can find more about this topic by visiting BBC Bitesize - Data and databases

Author:  Duncan Daish

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