Computing

Question 1

1A QR code differs from a traditional barcode because it

Easy

A. stores data in two dimensions B. can only store prices C. needs no scanner D. is printed in colour only

Question 2

2Tags that are read by radio waves, for example on goods in a warehouse, use

Easy

A. MICR B. OMR C. OCR D. RFID

Question 3

3A barcode reader reads data using

Easy

A. sound B. heat C. reflected light D. magnetism

Question 4

4Touchscreens detect input by

Easy

A. heat only B. sound C. smell D. sensing pressure or electrical changes from touch

Question 5

5A biometric input device uses

Easy

A. barcodes B. keyboards C. passwords D. fingerprints or facial features

Question 6

6Magnetic Ink Character Recognition (MICR) is used mainly by

Easy

A. shops to read barcodes B. schools to mark exams C. banks to read cheques D. phones to read faces

Question 7

7Reading the marks on multiple-choice answer sheets automatically uses

Easy

A. RFID B. optical mark recognition (OMR) C. MICR D. voice recognition

Question 8

8The check digit in a barcode is used to

Hard

A. detect errors in scanning B. encrypt data C. identify the country only D. show the price

Question 9

9RFID tags are read using

Easy

A. magnetic stripes B. touch C. radio waves D. light only

Question 10

10OCR software converts

Easy

A. sound to text B. video to audio C. scanned text images into editable text D. text to speech