In addition to Amateur Radio, I enjoy listening to all sorts of radio signals in the low, medium and high frequency spectrum, from 100 kHz to 30 MHz. And I enjoy using and playing with new technologies, including computer-controlled and software defined radios.
Computer-controlled Conventional and Software-Defined Radios
Self-Contained Tv-tuner and "radio on a chip" Radios
While computer controlled and SDRs can be much smaller and lighter than conventional or boatanchor radios, many require the use of a separate computer (desktop, laptop, tablet, phone) to control them.
My favorite radios support open application programming interfaces and/or front ends that support multiple operating systems. With the Qt framework, there's really no excuse for single-operating system SDR front ends.