Funny, my HP laptop is one of the latest models, but came with a 1 TB spinup hard drive, which I replaced with a 400+ SSD and it is lightning fast! I makes everything else seem much slower than they actually are. The HP boots between 3.5 and 4.5 seconds. I have no idea why it varies.
Today's computers processors are near impossible to upgrade except changing the whole motherboard, but back in the 80s, I think it was a Phoenix desktop I bought that the processor was a plug in and could be changed just by popping it out and plugging in a new one. Must have had a thousand needles sticking out the back of it which plugged into the mother board. I upgraded it twice. Came with a 5 inch floppy, a modern 3.5 floppy and a big hard drive of 169 Meg, not Gig, MEG! :highly_amused: