I remember all the formats shown.

My first machine was an AST Research 286 16Mhz (in “turbo” mode) with two 5-1/4" floppy drives, and a 40 MB 5-1/4" hard drive. I paid ~$2000 for it in the late 80s. That was a good move, I knew more about computers than most people applying for jobs at the time, and that allowed me to make a decent living without a college degree.