The Original Macintosh Keyboard Was Missing What Common Modern Keyboard Feature?
Answer: Cursor Keys
Cursor keys, or arrow keys as they are also known, are a very common feature on modern keyboards. We use them for playing games, for moving through spreadsheets, adjusting the location of our typing cursor while word processing, and all manner of practical tasks.
Curiously (and very purposefully), there were no cursor keys (nor was there a numeric pad) on the first Macintosh keyboard. The lack of cursor keys was highly intentional and specified by Steve Jobs as a way to both force users of the Macintosh to use the mouse and grow proficient with it and to simultaneously force designers of Mac applications to focus on good graphic user interface design that favored mouse use and GUI over keyboard and command line use.