The trend that involves the conversion from mechanical and analog devices to digital devices is commonly referred to as the

Digital revolution

Explanation:

Digital revolution is defined as movement of mechanical and analog technology towards the digital technology to face modification and shift. Digital services and devices work on binary codes for processing the signal, waves, and messages.

Devices that earlier used analog waves and mechanics to process their devices turned to use digital technology as it was more preferred and sampled.Digital computers, digital television, digital media, digital data etc.are  some services that enhanced features,improved goals and processing, increased productivity of the services.

i have to go with a for this one

i feel as if they would both catch on before to long because they would see them to frequent