Outsoftware · Digital preservation · 2016–present
The collection preserves original media and their copy protection. Supplied backup copies are also used to document the software and are identified in the screenshot captions.
NE555 Component Selection · Dilwyn Jones
Floppy IMG derived from archived files. Mount as FLP1 and boot using Minerva 1.98a1 ROM, 640 KiB and Toolkit II 2.32. Entered 10/20 ms periods and 1 µF capacitance: calculated values, preferred values and resulting frequency displayed. This checks historical software operation, not a physical circuit. Other cases were not tested. Basic functional check in sQLux, not a complete test or a test on physical QL hardware. Audio not tested. ROMs are not included.
Source: ne555-selection.img
ne555-selection.img
Derived Working IMG selected by the curator. This is not a public-domain declaration; rights remain with their respective holders.
Download Working IMG720 KB · IMG
Timestamp stored in the original ZIP; timezone unspecified. It does not certify the dump acquisition date.
Media contents (2)
| Original name | Type | Byte |
|---|---|---|
| main_bas | QL file | 4.345 |
| boot | QL file | 65 |
Names are preserved as recorded on the medium. “≤” indicates allocated space, not the exact file length.