I have two main units.
type computer
country USA
year 1987
os MS-DOS 3.1
cpu Intel 80286
speed 12 MHz
ram 640 KB
storage 20 M hard drive, 1.2 M 5,1/4″ floppy
graphic 640×200, 80 x 25 text, 10″ gas plasma screen
colors mono
sound beeper
ports serial, RGB, parallel