I'll never forget a conversation I had with the head of IT at PepsiCo's Pizza Hut division in 1984. At the time, Pizza Hut's technology operation was completely mainframe-based. The IT chief (who had a PhD in computer science) told me clearly, and quite loudly, that PCs were toys that would never be part of his organization. Over his dead body.
Unfortunately, it turned out that way, figuratively speaking. PCs eventually became the primary technology for Pizza Hut employees to build spreadsheets, write memos and create presentations. In the field, PCs became the dominant technology at the point of sale. The CIO failed.
Oh my, that was painful.