A Tandy Color Computer II, better known as a CoCo.
That monster had a whopping 16KB of memory, used my TV as a monitor,and no storage. I had a tape drive so I could save the programs that I typed in... Yes, in Basic. A version of AppleSoft, to be exact.
Of course, if my folks could have afforded a disk drive ($300+ for a floppy drive, 5 1/2" external), the controller would have boosted my RAM to 64kb.
I had dreams of buying a RAMdisk, which would have given me 512KB, but I didn't have the $100 for it.