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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.

Digital preservation / Sinclair QL

Discrete Fourier Transform — Harding / Lindroos

Floppy IMG derived from archived files. Mount as FLP1 and boot using Minerva 1.98a1 ROM, 640 KiB emulator RAM and Toolkit II 2.32. Performed a four-point FFT and inverse transform, reconstructing the input (1, 0.5, 0, 0.5). Other transform sizes were not exhaustively tested. Basic functional check in sQLux, not full validation or a physical-hardware test. Audio untested. ROMs are not included.

Discrete Fourier Transform — Harding / Lindroos — Performed a four-point FFT and inverse transform, reconstructing the input (1, 0.5, 0, 0.5). Other transform sizes were not exhaustively tested.
Performed a four-point FFT and inverse transform, reconstructing the input (1, 0.5, 0, 0.5). Other transform sizes were not exhaustively tested. · sQLux
Source: discrete-fourier-transform-harding-lindroos.img

discrete-fourier-transform-harding-lindroos.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

Platform
Sinclair QL
SHA-256
8021f80747976f7862dc66b720b84f34d914649ed37e51de7babdcd07c3862b6
File timestamp

Timestamp stored in the original ZIP; timezone unspecified. It does not certify the dump acquisition date.

Media contents (3)
QDOS floppy directory
Original nameTypeByte
bootQL file274
main_basQL file4.466
original_basQL file4.466

Names are preserved as recorded on the medium. “≤” indicates allocated space, not the exact file length.