Here is a history of the entire Kaypro line of computer systems.
| Year | Model | Notes |
| Late 1982 | Kaypro II (a.k.a. Kaypro II ’83) |
2 SS/DD full-height floppies 2.5 MHz Z-80 1 serial port Bundled software from Perfect Software. |
| Middle 1983 | Original Kaypro 10 | 1 DS/DD floppy drive 10 meg HD 4.0 MHz Z-80A CPU 2 serial ports light pen port Real time clock (Absent on all or some models) Software from Perfect Software dBase II |
| Middle 1983 | Kaypro IV (a.k.a. Kaypro IV '83) |
Same as Kaypro II but… With DS/DD full-height floppy drives WordStar started being included in addition to the Perfect Software suite. The same was true for the Kaypro II'83 Later versions included WordStar as well |
| Early 1984 | Kaypro 4 (a.k.a. Kaypro 4 '84) |
2 DS/DD half-height floppy drives 4.0 MHz Z-80A CPU 2 serial ports, Real-time clock Rudimentary graphics. |
| Late 1984 | Kaypro 2 (a.k.a. Kaypro 2 '83) |
2 SS/DD half-height floppy drives, 4.0 MHz Z-80A 2 serial ports Rudimentary graphics. Software was from Micropro (WordStar, CalcStar, etc.) |
| Early 1984 | Kaypro 2X | Similar to older Kaypro IV, or Kaypro 2 2 DS/DD half-height drives 4.0 MHz Z-80A 2 serial ports Rudimentary graphics Software from Micropro (WordStar, CalcStar, etc.) |
| Late 1984? | Kaypro Robie | The first non-portable Kaypro machine Black desktop 2 2.6 Megabyte floppy drives Motherboard is basically the same as a Kaypro 4 300 baud modem Rudimentary graphics Robies were not big sellers |
| 1985 | All models | Kaypro upgrades most of the machines to the
"Universal ROM" Boot disk are now interchangeable |
| 1985 | Kaypro 2X | The Kaypro 4 '84 is renamed the Kaypro 2X
(sometimes known as 2X MTC). Kaypro 2X, Kaypro 2 '84, and Kaypro 4'84 are dropped |
| Early 1985? | The "New" Kaypro 2 | The "New 2" is introduced Basically an old 2X motherboard 1 DS/DD floppy drive Comes with only CP/M and WordStar for software |
| Early 1985 | Kaypro II' 83 | Kaypro starts producing the Kaypro II' 83
again Comes with Perfect software (as opposed to Micropro software) |
| 1985 | Kaypro 4X Kaypro 12X |
Kaypro 4X is a Robie but in a standard
portable case Kaypro 12X is a Kaypro 10 but with a Robie floppy drive (4X or a 12X may never have been produced) |
| 1986 | Kaypro 1 | Equivalent to the old Kaypro 2X 2 DS/DD floppies 4.0 MHz Z-80A 2 serial ports, etc. Came with CP/M and Perfect Writer for software |
| 1986 | Kaypro 1, Kaypro 2X MTC, Kaypro 10, Robie | After this. Kaypro produced just the 1, 2X
MTC, 10 and Robie This continued until they got out of the CP/M machines |
| Ongoing evolution | Variations | After this, there were a few variations on
some machines One variation was the Kaypro 4+88, which had a SWP (?) co-processor board with an 8088, 256K of memory (which could be configured as a RAM disk under CP/M), and could run some MSDOS software. |
| Unknown | Kaypro V | The Kaypro V was rumored to exist. It was supposed to be a precursor to the Kaypro 10, but with a 5 Meg HD and a single-sided floppy |