softwarelist
| name | description | notes |
| zx81_cass | Sinclair ZX81 cassettes | |
|
software
| name | supported | description | year | publisher | cloneof | notes |
| heatsys | yes | Heating System Analyzer | 1982 | Timex | | |
|
rom
| name | size | crc | sha1 | offset | status | loadflag | value |
| HeatingSystemAnalyzer.tzx | 15718 | ea836c43 | 9d5e5a4f1e26f6a5dba03028940310bb796da199 | | good | | |
|
part
| name | interface |
| cass1 | zx81_cass |
|