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Apple Lisa: Mac's failed predecessor.
What's that? You don't want a PC? You want an Apple? Well, lucky you, Apple was ready to sell you a Lisa -- complete with Motorola 5MHz 68000, 5MB hard drive, "huge" 1 MB of RAM, and Apple's first graphical operating system, Lisa Operating System. And, you could have all this for "only" $10,000. Yeah, there's a reason why only hard-core Apple fans remember this one. The Mac, introduced in 1984 for $2,500, proved far more popular.
The once, and future, Commodore 64
Apple and IBM too pricey for you? Commodore, with its Commodore 64, a computer inside of a keyboard that required a spare TV for the interface, had the machine for you at $299. It wasn't much of a PC -- 64K of memory was small even by 1983 standards -- but it proved amazingly popular. Indeed, Commodore recently released a 21st century Commodore 64 running Linux.
KayPro: One of the first "portable" computers.
You also could have bought one of the last PCs running the CP/M-80 operating system: the "portable" KayPro II for only $995.