My first Mac was the 128k bought for $1k at Stanford’s discount. When Byte Magazine published an article on how to upgrade it to 512k my roommate Marc and I were all in.

Marc was one of the 1st people at Silicon Graphics and got the chips. Marc did his board and took me to SGI for me to do mine. I was terrified! But a very nice tech took pity on me and did the job.

It’s impossible to convey what an amazing upgrade it was. You could even copy an entire 400k floppy with only 1 swap instead of 4!