Accessibility Devices and Data Processing

What are accessibility devices also known as?

• Assistive technology

• Peripheral devices

• Data processing devices

• Mobile devices

Answer explanation

Accessibility devices are tools or equipment that help individuals with disabilities perform tasks that they might otherwise find difficult or impossible. These devices are also known as 'Assistive technology'. This term refers to any item, piece of equipment, or product system that is used to increase, maintain, or improve functional capabilities of individuals with disabilities.

Which device stays in one location while moving the ball to control the cursor?

• Mouse

• Trackball

• Touchscreen

• iMotion sensor

Answer explanation

A trackball is the correct choice because it is a stationary device that allows users to control the cursor by moving a ball. Unlike a mouse, which requires movement across a surface, a trackball remains in one location, making it more convenient for limited space situations. Touchscreens and iMotion sensors involve different methods of cursor control and are not stationary devices.

What is the advantage of using a touchscreen device compared to a mouse?

• Better accuracy

• Faster navigation

• Easier to use

• More compatibility

Answer explanation

Touchscreen devices offer better accuracy compared to a mouse because they allow users to directly interact with the screen, eliminating the need for a separate input device. This direct interaction enables users to precisely select and manipulate on-screen elements, resulting in a more accurate and intuitive user experience.

How did Stephen Hawking use iMotion sensors?

• To control his speech

• To write his papers

• To improve his mobility

• To communicate with others

Answer explanation

Stephen Hawking used iMotion sensors to write his papers. These sensors allowed him to control a computer and communicate his ideas effectively, despite his physical limitations due to ALS. The iMotion sensors were not used for controlling his speech, improving his mobility, or directly communicating with others.

What is a Braille embosser used for?

• To read Braille

• To write Braille

• To translate Braille

• To print Braille

Answer explanation

A Braille embosser is used to print Braille. Braille is a tactile writing system used by people who are visually impaired. The embosser translates text into Braille characters and then embosses them onto paper so that they can be felt with the fingers. Therefore, the correct answer to the question is 'To print Braille'.

Which type of data processing involves the user initiating the process and the computer completing the rest?

• Biometric reading

• Barcode scanning

• OMR marking

• RFID data transfer

What is the purpose of a barcode reader?

• To scan fingerprints

• To recognize faces

• To read barcodes

• To mark test papers

What is the main use of optical mark recognition (OMR)?

• Scanning barcodes

• Reading fingerprints

• Marking test papers

• Transferring data wirelessly

Which device uses radio frequency identification for data transfer?

• Biometric reader

• Barcode reader

• OMR machine

• RFID tag

What is an example of manual data processing?

• Entering details into a database

• Using biometric readers

• Scanning barcodes

• Transferring data wirelessly