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What information do Barcodes contain
Products name
manufacturer
Price
its code.
Barcodes information is recived as a digital signal and then decoded into an analogue signal
Products name
manufacturer
Price
its code.
When were barcodes invented
1980
1940
1930
1970
Why were they created
To prevent RSI
To speed up customers
To stop long lines of people
What are 2D scanners used for
To prevent RSI
To speed up customers
To stop long lines of people
What does CCD stand for
Charge couple device
Computer computer diameter
Where can 2D scanners and 3D scanners be used
Charge couple device
Computer computer diameter
How are barcodes and QR codes different
Barcodes hold 30 while QR codes have 7000
QR codes hold 30 digits while barcodes have 7000
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