Answer:
master file contains data types while transaction file is used to record Master file
Explanation:
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<h3> kind of sensors used in a burglar alarm system:-</h3>
- Passive Infrared Sensors
- Tomographic Motion Detector.
- Microwave Detectors.
- Ultrasonic Detectors.
- Photoelectric Beams.
- Glass Break Detectors.
Answer: Input
Explanation:
Biometric systems work by using a person's physical or behavioral characteristics to digitally ascertain that it is indeed that person that is requesting access to what it is they are requesting access to such as systems, data and devices.
Examples include fingerprints and facial patterns. Biometric systems therefore take in the information presented which makes them input devices.