Extended Hardware

Question 1

Gestures (used for touchscreen)

Answer 1

Pinch (allows you to zoom out of an image)

Expand (allows you to zoom into an image)

Swipe (allows you to scroll in the direction of the swipe)

Touch and drag (works as exactly like click and drag with a mouse)

Question 2

Sensors

Answer 2

Accelerometer: Detects movement for screen orientation and auto-rotation.

Temperature sensor: Prevents overheating by shutting off automatically.

Light sensors: Adjust screen brightness automatically and turn off screen when phone is held to ear.

Electronic compass: Shows device direction.

Question 3

Gaming devices

Answer 3

Joystick
Game controller
Steering wheel
Digital cameras

Question 4

How can picture quality be adjusted

Answer 4

By increasing or decreasing the resolution

Question 5

What’s a scanner and reading devices

Answer 5

Used to capture data without the need for the user to type/write/speak

Question 6

Flatbed scanner

Answer 6

type of optical scanner that uses a flat surface to assist with the scanning process.

Question 7

Sheet feed scanner

Answer 7

type of scanner that automatically feeds and scans individual sheets of paper, rather than requiring the user to place each page manually on a flatbed.

Question 8

Difference between sheet fed and flatbed scanner

Answer 8

Sheetfed scanners can quickly scan both sides of multiple pages at once, ignoring blank pages. Flatbed scanners can only scan one side of one page at a time.

Question 9

Benefits of a barcode system

Answer 9

Speed
Accuracy

Question 10

Biometric scanners

Answer 10

Technology that scans unique biological features, like fingerprints, for identification

Question 11

Where do bank cards and credit cards store data

Answer 11

On a magnetic strip

Question 12

RFID

Answer 12

Radio Frequency identification

Uses small radio devices to store and transmit data

Question 13

Ripping

Answer 13

Using software to copy digital content from CDs and DVDs

Question 14

Storage capacity of CD and DVD and blu-rqy

Answer 14

CD - 700MB
DVD- 8.5gb
Blu-ray - 50gb

Question 15

Advantages of multi function devices/printer

Answer 15

Save space

Cost much less than having to buy the pieces of equipment separately

Question 16

Motherboard

Answer 16

The motherboard is a large printed circuit board that connects all the parts of computer, such as
the CPU and RAM.

Question 17

Taking care of PC system1

Answer 17

1. PC System Care:
   • Keep electronic sources that create magnetic fields away from your computer to avoid interference.
   • Regularly dust and clean your computer and its surroundings.
   • Ensure your computer is well-ventilated to prevent overheating.
   • Avoid spilling liquids near your computer and keep food away from the keyboard to prevent damage.
2. Optical Storage Media Care:
   • Handle optical discs carefully as they are prone to scratches.

Store discs in protective cases.

• Clean discs with water (or a mild solution) and a soft cloth, wiping from the center outwards.
• Hold discs by the edges or the center hole to avoid touching the surface.

Question 18

Video input

Answer 18

Record digitally with built-in camera or webcam. Transfer file from external camera storage card.

Question 19

Audio output

Answer 19

Provides feedback and used to enhance entertainment.