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  2. Lenslok - Wikipedia

    en.wikipedia.org/wiki/Lenslok

    Lenslok is a copy protection mechanism found in some computer games and other software on the Atari 8-bit computers, Commodore 64, ZX Spectrum, Sinclair QL, MSX and Amstrad CPC. It was created by John Frost, an inventor and electronics consultant, and marketed by ASAP Developments, a subsidiary of J Rothschild Holdings. [ 1 ]

  3. Electric Dreams Software - Wikipedia

    en.wikipedia.org/wiki/Electric_Dreams_Software

    Electric Dreams Software was a UK-based video game publisher established in 1985 by Activision [1] and run by Rod Cousens and Paul Cooper formerly of Quicksilva. [2] The company published video games for the ZX Spectrum, [3] Commodore 64, Amstrad CPC [4] and the Atari 8-bit computers [5] between 1985 and 1989, becoming one of the top eight UK software houses by 1987.

  4. List of computer system emulators - Wikipedia

    en.wikipedia.org/wiki/List_of_computer_system...

    Cross-platform/POSIX API: binary for 32-bit Raspberry Pi 4/400 GPL3: ee9 V11 May 15, 2024: English Electric KDF9: Cross-platform/POSIX API: binaries for 64-bit Raspberry Pi 4/400, Intel macOS Mojave through Sonoma, ARM macOS Sonoma, and 64-bit Intel Linux (also runs under FreeBSD and Windows 10/Windows 11 with WSL). Includes a Pascal cross ...

  5. Ocean Software - Wikipedia

    en.wikipedia.org/wiki/Ocean_Software

    Ocean Software Ltd was a British software development company that became one of the biggest European video game developers and publishers of the 1980s and 1990s.. The company was founded by David Ward and Jon Woods and was based in Manchester.

  6. Beta BASIC - Wikipedia

    en.wikipedia.org/wiki/Beta_BASIC

    As well as allowing the programmer to save and load programs, blocks of memory or screen images into the RAM disc and catalogue the contents of the RAM disk, Beta BASIC also provided commands for the creation and use of arrays held in the RAM disk, allowing programs running in the 30 KB or so of free memory on the Spectrum to manipulate arrays ...

  7. ZX Spectrum - Wikipedia

    en.wikipedia.org/wiki/ZX_Spectrum

    Ultimately the Spectrum was released as seven models, ranging from the entry level with 16 KB RAM released in 1982 to the ZX Spectrum +3 with 128 KB RAM and built-in floppy disk drive in 1987. Throughout its life, the machine primarily competed with the Commodore 64, BBC Micro, Dragon 32, and the Amstrad CPC range. Over 24,000 software products ...

  8. Fast loader - Wikipedia

    en.wikipedia.org/wiki/Fast_loader

    Soon after the C64's release, some astute programmers realized that Commodore's bit-banging serial KERNAL routines were unnecessarily sluggish. Since the CPU in the C64 ran at approximately the same speed as that in the 1541 disk drive, it was sufficient to synchronize only at the beginning of each byte , rather than at each individual bit .

  9. Valhalla (video game) - Wikipedia

    en.wikipedia.org/wiki/Valhalla_(video_game)

    The publishing house Legend, founded and managed by John Peel, had previously published titles under the Microl label which financed the development of Valhalla. [5] The game was developed by Richard Edwards, Graham Asher, Charles Goodwin, James Learmont, and Andrew Owen using a system they named "Movisoft" which Peel hoped would become "the adventure game equivalent of CP/M". [5]