Happy 40th Anniversary
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It cost $2,495, or $7,366 in 2024 dollars, featured a 9-inch black-and-white display, 128KB of RAM, a 400 KB floppy disk drive, a mouse, and built-in networking. Decried as an elaborate 'Etch-a-sketch' it developed to 500KB RAM and then to the MacPlus after a very serious update which Apple offered to original users at a heavily subsidised price.
Windows appeared about a year later.
These days you can emulate the original MacOS even on your current Apple silicone.
Thank you to Jeff Raskin, the original team, and Steve Jobs.