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Computing

Computing · Quick practice · answer shown after each question

Barcodes and input technologies

Question 1 of 10

Question 1 of 10

OCR software converts

Question 2 of 10

Question 2 of 10

A biometric input device uses

Question 3 of 10

Question 3 of 10

A QR code differs from a traditional barcode because it

Question 4 of 10

Question 4 of 10

Magnetic Ink Character Recognition (MICR) is used mainly by

Question 5 of 10

Question 5 of 10

The check digit in a barcode is used to

Question 6 of 10

Question 6 of 10

Reading the marks on multiple-choice answer sheets automatically uses

Question 7 of 10

Question 7 of 10

Touchscreens detect input by

Question 8 of 10

Question 8 of 10

Tags that are read by radio waves, for example on goods in a warehouse, use

Question 9 of 10

Question 9 of 10

RFID tags are read using

Question 10 of 10

Question 10 of 10

A barcode reader reads data using

Questions written by OtisamLMS in the style of the WASSCE. They are not WAEC past questions.