ch 4 computer inpit

what is a short range wireless technology used for data transfer and electronic payments?

NFC

nfc

near field communications (nfc) is a short-range wireless connectivity standard that uses magnetic field iduction to enable communication between devices when they're touched together, or brought within close proximity

to create an image, the technology used by smartphones is called active-

pixel sensor

bluetooth

provides short-distance wireless communication between electronic devices using extremly low power radio signal

Active Pixel Sensor

technology has allowed tiny smartphone cameras to capture beautiful images

select the qualities that make a trait useful for biometric

•the trait must be measured differently eith each person •the trait must not change over time •everyone must have the trait •many use biometric traits, such as fingerprints or retinal scans, can only be seen when close