Input and Output Devices Quiz

What are some drawbacks of using mice as an input device?

• High risk of repetitive strain injury

• Difficult to navigate for beginners

• Vulnerable to dust and dirt accumulation

• Limited compatibility with certain software

What is the primary function of a light sensor?

• Measure the amount of light falling on them and send it to a processor

• Measures pressure and send the results to the processor

• Interpret the reflected light so that image can be stored in a computer system

• To produce physical copies of documents or images

What is the primary function of a scanner in a computer system?

• Converting physical documents and images into digital format, and performing optical character recognition (OCR)

• Creating databases and word processing documents

• Playing music and editing videos

• Online shopping and social media browsing

Which of the following is NOT a characteristic of barcodes?

• Quick and easy

• Must be undamaged to read

• Highly complex

• Affordable technology

What is the primary use of OCR and OMR?

• OCR is used for digitizing printed documents, document search ability. OMR: OMR is used for forms that require respondents to mark predefined options

• OCR is cursive font and OMR is block letter font

• OCR can be used for tasks such as adjusting screen brightness, controlling volume, OMR is used for making sound