Unit 5 Vocabulary — Input Devices

Noun (thing)
Barcode reader
a hardware peripheral designed to 'scan' products into an inventory tracking system
Harry ran into trouble while taking inventory because he forgot to charge his barcode reader.
Noun (thing)
Click
to press and release the primary mouse button
The screen prompt read "Click the button to continue."
Verb (infinitive)
Double-click
to press and release the left mouse button twice in quick succession
The Macintosh user did not know that in order to open a file in Windows you need to double-click it.

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