weird phrase “slash q-z” what does it means and why?

Question

Hi guys, I was recently browsing some quotes out of boredom, and saw one said by Jobs:

“The manual for WordStar, the most popular word-processing program, is 400 pages thick. To write a novel, you have to read a novel – one that reads like a mystery to most people. They’re not going to learn slash q-z any more than they’re going to learn Morse code. That is what Macintosh is all about.”

I can understand the meaning behind it but got curious about the phrase “slash q-z” as it seems not to be a common word and cannot find much about it on Google.

Edit: thanks for all the wonderful answers guys, it’s really interesting to look back see how far we’ve come from.

In: 412

Answer 1

Thanks all for the explanation guys 🙂