Input can…
- Provide the running software with instructions
- Can be data that needs to be processed
3 Types of Digital Cameras
- Smartphone cameras
- Digital cameras
- DSLR cameras
3 Advantages of Digital Cameras
- Take many photos(Depending on size of memory card)
- Can use images immediately
- Can easily transfer images
3 Disadvantages of Digital Cameras
Before:
1. Cost(Expensive)
2. Inability to take pics in low light
Now technology has advanced and there is no disadvantages.
Function of a Lenses
Larger lenses capture more light, which increases quality and detail
Sensor size determines…
Large sensors capture more light which produces better quality images
What is Optical Zoom?
Uses the lenses to get closer to the object. use this for better quality
What is Digital Zoom?
Like a magnifying glass, closer you get the more blurry it gets
What is Resolution?(Cameras)
The amount of pixels the image is made up of
What is the ISO Rating?
How sensitive the camera is to light
What is a Scanner?
A device that scans images, barcodes, photos and 3-D objects.
What is Biometric Input?
Capturing a persons unique features for security proposes
3 Types of Biometric Devices
- Eye scanner
- Voice recognition
- Fingerprint scanner
Advantages of Biometrics
More secure than password as it is basically impossible to bypass as it is unique to only one person
2 Disadvantages of Biometrics
- Expensive
- Requires additional hardware
Input Devices at an ATM
- Card reader
- Modem/Network connection
3.Touch screen - Money counter
- Money deposit slot
Advantages of an ATM
- Allows for banking transactions
- Banks have developed a system where you can use any ATM(Not limited to your own bank)
Disadvantage of an ATM
People can use skimmers over an ATM to steal your info
What does RFID Stand for?
Radio Frequency Identification
What is a POS System?
Systems used to scan barcodes and RFIS tags for items(Mainly at stores)
3 Advantages of POS Systems
- Faster processing at pay points
- Better stock control
- Better accuracy of prices of items
Disadvantages of POS Systems
- When system is offline it is difficult to function
- Requires expensive equipment
