MD 7

† T† 1. caps lock and num lock are two examples of toggle keys.

† T† 2. Keylogging software runs undetected and stores every keystroke in a file for later retrieval.

† T† 3. Wearable devices mainly rely upon touch input.

† T† 4. A smaller frame rate results in a smaller file size for a video, as well as a smoother playback.

† F† 5. Optical character recognition (OCR) and optical mark recognition (OMR) are two technologies used by QR code readers.

† F† 6. A magstripe reader reads the preprinted characters on the bottom of a check.

† T† 7. LCD stands for liquid crystal display.

† T† 8. In terms of response time, the lower the number, the faster the response time.

† F† 9. Contrast ratio defines a displayís width relative to its height.

† F† 10. A 3-D printer creates an object by using ink cartridges.

† F† 11. Printer resolution is measured by the number of pixels per inch a printer can print.

† T† 12. A dye-sublimation printer uses heat to transfer colored dye to specially coated paper.


1. command:G†† 2. Drone:F †††3. Headset:D †††4. interactive whiteboard:E †††5. keyboard shortcut:J

††† 6. multi-touch:C †††7. Scanner:I †††8. Stylus:A †††9. Touchpad:B†† 10. voice recognition:H

//a. ††††††† small metal or plastic device that looks like a tiny ink pen but uses pressure instead of ink

//b.††††††† small, flat, rectangular pointing device that is sensitive to pressure and motion

//c.†††††††† touch screen capability of recognizing more than one point of contact at the same time

//d.††††††† device that functions as both headphones and a microphone

//e.††††††† touch-sensitive device that displays the image on a connected computer screen, usually via projector

//f.†††††††† aircraft that operates by an onboard computer and GPS, a remote control device, and/or an app on a computer or mobile device

//g.††††††† instruction that causes a program or app to perform a specific action

//h.††††††† computer or mobile deviceís capability of distinguishing spoken words

//i.††††††††† light-sensing input device that reads printed text and graphics and then translates the result into a form the computer can process

//j.†††††††† one or more keyboard keys that you press to perform an operating system or application

1.       Find out where the narrator function is on the computer and enable it so the computer reads what the cursor is over.

2.       The TV may be too far away from the WIFI router or there may be something between the two. Move the tv closer to the router.

3.       The problem may be that your screen canít recognize one part of the screen or that your fingers or the screen is too dirty to pick up the second finger.

4.       A low battery may have caused the screen to dim. Most devices have low power mode where it turns down brightness and turns off unnecessary utilities.

5.       The cord may have become frayed or broken off inside the earbud which could be from poor maintenance.

Internet research