1.4 Input devices Flashcards
1
Q
Give some examples of input devices
A
- Keyboards
- Pointing
- Microphones
- Touch screens
- Interactive whiteboards
2
Q
Pointing devices
A
Things like mouse and trackerball
3
Q
Types of barcode systems
A
- Universal Product Code
- Code 128
4
Q
UPC-A
A
- Retail and warehousing
- Represent numeric digits
5
Q
Code 128
A
- Used in transport and shipment tracking
- Can represent letters and numbers
6
Q
QR
A
2D barcodes and can be read by smartphones and tablets
7
Q
Uses of QR codes in society
A
- Restaurant coupons
- Mobile concert tickets
- Real estate agency boards
- Business cards
- Tourist information
- Advertising posters
8
Q
2D scanners
A
Used to convert a hard/paper copy document or photograph into a computer-readable product
9
Q
3D face recognition
A
Security cameras may use face recognition
10
Q
3D scanners
A
Used in both industrial and medical fields
11
Q
Tomography
A
Image something in very thin slices
12
Q
Sensors
A
- Collect data in an analogue form and require conversion to digital data to be processed
- Take measurements of physical properties such as temperature or pressure from real world surroundings, which usually is a representation of the actual property being measures
13
Q
Analogue measurements
A
Data has no discrete value
14
Q
Types of sensors
A
- Gas
- Infra-red
- Light
- Temperature
- Pressure
-pH - Magnetic Field
- Moisture/humidity
- Acoustic
15
Q
Monitoring
A
Makes no changes to the actual process, it will simply report the values
