Timex Sinclair ZX-81. 1k of memory with outboard 16k expansion module. Membrane keyboard. Headphone jacks for to connect your own tape recorder, whereupon to save your programs.
My parents bought me that to see if my interest in computers was passing, or long-term. Once they surgically removed me from the thing, they bought me an IBM PC. 4.77MHz 8088. 256K. Two double-sided floppy drives (360k each). If Jean-Luc Picard had existed back then, I'd have felt like him.
My first hard disk was a Seagate ST-225. 20 megs of MFM, stepper-motor goodness. There was no way I'd ever fill it up.
-BP