Computing - Input & Output Devices
See Also
Flashcards
2020-11-30
What’s an example usage of barcodes?
- Airline baggage tracking
- Product labelling
- Parcel delivery and shipment
- Ticketing and identification
Why does black represent $0$ in barcodes?
Black reflects less light.
Why does white represent $1$ in barcodes?
White reflects more light.
What are “Code 128” barcodes used for?
Transport and shipment tracking.
What does the large left number represent?
What does the large left number represent?The manufacturer number.
This image contains identical bars at the beginning, middle and end. What are these called?
This image contains identical bars at the beginning, middle and end. What are these called?Guard bars.
Why is the left hand side and the right hand side the exact opposites?
Why is the left hand side and the right hand side the exact opposites?So that the orientation doesn’t matter.
If you have $0010$ on one side of a barcode, what do you have on the other?
What does $CMOS$ stand for?
Complementary Metal Oxide Semiconductor
What happens when a camera’s shutter opens?
The light hits the sensor and the light values are represented as binary values.