CP102 Chapter Notes -Base Transceiver Station, Digital Signal Processor, Telephone Exchange
Document Summary
Ch8 digital lifestyle: managing digital data and devices. Analog/continuous waves: illustrate loudness of a sound or the brightness of the colours in an image at a given moment in time. Analog-to-digital conversion expresses complicated analog shapes, signal is measured many times each second, strength of signal at each measurement is recorded as a simple number. Telephony: use of equipment to provide voice communications over a distance has shifted from an analog science to a digital one. Cell phones and smart phones have the same components as computer: processor, memory, input and output devices. Analog-to-digital converter chips converts your voice"s sound waves into digital signals (1s and 0s that the phone"s processor can understand) When you make a phone call, a base station picks up the request for service. The station then passes the request to a central location called a mobile switching center processor coordinates sending all the data among the other electronic components inside the phone, runs phone"s os.
