Micro Developments
2000 Center Street, Berkeley, CA 94704
Location: California, United States

Expanders from Micro Developments connected to each other via 16 pin ribbon cables.
Products
| Name | Description | Computers |
|---|---|---|
| A/D-D/A Expansion Board | Provides two channels of ADC and two channels of DAC. 8-bit resolution is obtained in 100 microseconds. The I/O command requires a single line of PEEK or POKE. Sample programs are provided and simple applications are suggested, e.g., temperature measurements and an interactive servo circuit. | Timex/Sinclair 1000 |
| Beeper, Clock, Switch Board | The clock is a 15 bit stopwatch and uses 2 of the 16 bytes available on the I/O board. It has a resistor/capacitor time base, can be switched for 0.1 or 1.0 second intervals. An independent beeper is on the board and an extra output bit is available to output a logic signal. | Timex/Sinclair 1000 |
| I/O Expansion Port | Provides a buffered bus that decodes the address lines and inhibits the internal 1K RAM (and external 16K RAM) when I/O is selected. Up to 8 byte-wide ports. Connects to the ZX-81 via a custom cable. | Timex/Sinclair 1000 |
Articles
| Title | Description | Computers |
|---|---|---|
| Bulletins | Updates from Hawg Wild, Silicon Valley North, Daydesign, T-S Systems, Intercomputer, Mindware, Micro Developments, DK'tronics, MicroSync, Florida Creations, Len Harmon, Filesixty, Data-assette. | |
| Input/Output Board lets you add on peripherals | THIS I/O (input/output) board is a must for any hardware oriented T/S1000,ZX81 owner. It lets you add on such peripherals as digital to analog and analog to digital converters. All address and data lines are buffered in order to provide extended drive capabilities. | Timex/Sinclair 1000 |