Difference between revisions of "Diablo 1640"
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| − | The model 1640 uses a plastic print wheel and the model 1650 uses a | + | The model 1640 uses a plastic print wheel and the [[Diablo 1650|model 1650]] uses a |
metal print wheel. Both were available as a receive-only (RO) variant | metal print wheel. Both were available as a receive-only (RO) variant | ||
with no keyboard or a Keyboard Send-Receive (KSR) variant. | with no keyboard or a Keyboard Send-Receive (KSR) variant. | ||
Revision as of 15:16, 25 February 2026
| Diablo 1640 | |
|---|---|
| Manufacturer | Diablo |
| Model | 1640 |
| Lifetime | |
| Introduced | May, 1979 |
| Communication | |
| Interfaces |
RS-232C, 20 mA current loop, TTL parallel |
| Baud Rates | 110, 134.5, 300, 600, 1200 |
| Firmware | |
| CPU | Intel 8085 |
| ROM | 12 KB |
| RAM | 2 KB |
The Diablo 1640 is a daisy-wheel printing terminal introduced in May, 1979.[1] The model 1640 uses a plastic print wheel and the model 1650 uses a metal print wheel. Both were available as a receive-only (RO) variant with no keyboard or a Keyboard Send-Receive (KSR) variant.
The 1640 is controlled by an Intel 8085 microprocessor. According to the Maintenance Manual, the logic is housed on a Microprocessor Controller Board. The firmware is stored in 12 KB of Read-Only Memory (ROM), while 2 KB of Random Access Memory (RAM) is provided for internal workspace and the print buffer.
The terminal features a print speed of 45 characters per second (cps). It supports high-resolution positioning with 1/120-inch horizontal and 1/48-inch vertical increments, enabling proportional spacing and plotting via software. The standard print buffer is 256 characters, which can be optionally expanded to 2,048 characters to accommodate sustained 1200 baud transmission.
Manx
- Series 1640/1650 Printers and Terminals Product Description, April, 1980
- Series 1640/1650 Printers and Terminals Maintenance Manual, August, 1980
- Series 1640/1650 Printers and Terminals Parts Catalog, November, 1980
References
- ↑ Peripherals at NCC / Diablo Systems, Inc., Computerworld, May 28, 1979, pg. 31
