My father taught Printing and Graphic Arts at a vocational high school in San Antonio, Texas for 30 years (1960s to 1990s). He had previously been the owner/operator of the La Grange Journal newspaper in La Grange, Texas (as in the ZZTop song).
When he started as a printing teacher he had several linotype machines that were in daily use training high school students for local printing jobs after graduation (San Antonio had two newspapers back then). As a child, I grew up around these wonderful machines that took hot bubbling metal and made type. When the printing was done, the type would be dropped back into the pot, recycled into more words, over and over again.
My father had a love of gadgets, and was an early adopter of new printing technologies. The linotypes were first replaced by a machine that used a dumb terminal to set type on photographic paper instead of lead type. This machine was eventually interfaced with an Apple II to allow editing of content before being sent to the photographic paper. By the time my father retired, that machine had been replaced by several Apple Macintoshes networked to a laser printer for desktop publishing. Yet, there was still one linotype machine in the corner that could be fired up when needed. It was still used to make raised type for embossed printing.
When my father retired the printing program was shut down, and his last linotype machine was retired as well. Not that he minded. Watch the video, see how printing used to be done, and you will understand why my father absolutely loved desktop publishing and his Macs.