Summary
| Year | 1979 – 1985 |
| CPU | Two Z80, 2.048 MHz (one for terminal) |
| RAM | 16 KB – 48 KB on main board, optional 16 KB memory card (max addressable: CP/M - 64 KB, HDOS - 56 KB) |
| Display | integral 12" monochrome CRT (choice of white, amber, or green), 80 × 25 characters (25th line was a special status line) |
| Storage | 5.25" diskette drive (originally hard-sectored, 100 KB) |
| Interfaces | 3 serial, 1 Centronics parallel (optional), external diskette drive connector |
| Operating System | HDOS, CP/M, UCSD Pascal (P-System Pascal), or MP/M |
| Price | Kit version with 1 floppy drive: $1,800 in 1979 = approx. $4,800 in 2005 |
Read more about this topic: Zenith Z-89
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