Extended Hardware Flashcards
Gestures (used for touchscreen)
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)
Sensors
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.
Gaming devices
Joystick
Game controller
Steering wheel
Digital cameras
How can picture quality be adjusted
By increasing or decreasing the resolution
What’s a scanner and reading devices
Used to capture data without the need for the user to type/write/speak
Flatbed scanner
type of optical scanner that uses a flat surface to assist with the scanning process.
Sheet feed scanner
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.
Difference between sheet fed and flatbed scanner
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.
Benefits of a barcode system
Speed
Accuracy
Biometric scanners
Technology that scans unique biological features, like fingerprints, for identification
Where do bank cards and credit cards store data
On a magnetic strip
RFID
Radio Frequency identification
Uses small radio devices to store and transmit data
Ripping
Using software to copy digital content from CDs and DVDs
Storage capacity of CD and DVD and blu-rqy
CD - 700MB
DVD- 8.5gb
Blu-ray - 50gb
Advantages of multi function devices/printer
Save space
Cost much less than having to buy the pieces of equipment separately