Okay, sure, in the brains of horny consumers you MIGHT find a link between CARS and sex. But MODEMS?
I have previously mentioned the trashy nature of early British computer magazines. This advertisement is from a publication which positioned itself as more respectable than the rest ("Your Spectrum," January 1984), but I guess you can't pick your advertisers. And maybe there IS something sexy about modems that I've never noticed before...it's an acoustic coupler, after all.