Elbaroni is correct -- only another Mac can read/write 800K Mac floppies. And only an older Mac. That's the only hitch -- getting over the chicken-and-floppy problem.
Increase the RAM to its 4MB maximum. The Plus uses standard 30-pin SIMMs. Even ones salvaged from PCs of the era will generally work. You'll need to cut two resistors (labeled "one row" and "256k") to enable the Plus to see all 4MB. Then you'll really be in business!
Increase the RAM to its 4MB maximum. The Plus uses standard 30-pin SIMMs. Even ones salvaged from PCs of the era will generally work. You'll need to cut two resistors (labeled "one row" and "256k") to enable the Plus to see all 4MB. Then you'll really be in business!