That's probably fallout from the early days of this joke. After seeing this image with 'the server crashed', funny programmers would start saying their server "fell over" to reference that memory. Now it's come full circle. Meanwhile those of us who are "grandma peering at the computer screen" would only say a computer has "crashed." And wouldn't know how to fix it beyond a couple of tries at turning it off and back on again. (Which usually does work, though!)