technology

Typewriter Plotters

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Typewriter plotters utilize ballpoint pens to draw text and graphics. Panasonic produced multiple models, such as the RK-P400C with RS-232 for computer control and the RK-P440, requiring an external interface. Other manufacturers included Silver Reed, Smith Corona, and Brother, with each offering unique features. These devices operated with colored pens and were portable, appealing to retro computing enthusiasts. Basic plotters were also integrated into calculators and music keyboards, while some early personal computers had built-in plotters as accessories.

https://biosrhythm.com/?p=2143

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A Digital Dark Age? The People Rescuing Forgotten Knowledge Trapped on Old Floppy Disks

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Cambridge University Library is working to recover valuable historical information trapped on old floppy disks, including items from Stephen Hawking’s archives. The “Future Nostalgia” project addresses challenges posed by legacy data storage, as many disks risk data loss due to degrading materials. Archivists face technical hurdles in accessing and translating content from various disk formats, as finding compatible hardware is increasingly difficult. The project aims to preserve these forgotten documents for future generations and involves public participation, inviting individuals to bring their own floppy disks for exploration.

https://www.bbc.com/future/article/20251009-rescuing-knowledge-trapped-on-old-floppy-disks

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Build Your Own Commodore 64 Cartridge

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IEEE Spectrum published a guide on building a Commodore 64 cartridge using free software and affordable parts. The author, Stephen Cass, shares his experience creating a demo program for a traveling exhibit featuring the notable 6502 microprocessor from the C64. The process involved programming in 6502 assembly, utilizing modern tools, and assembling a cartridge with basic electronic components. Despite initial technical issues, the final product successfully showcased the capabilities of the C64, highlighting the accessibility of retro programming with current resources.

https://spectrum.ieee.org/commodore-64-cartridge

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Development of the MOS Technology 6502: a Historical Perspective

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TL;DR: The MOS Technology 6502 microprocessor, influential in computing during the late 1970s and 1980s, emerged from a team frustrated with Motorola’s costly 6800. Developed by ex-Motorola engineers at MOS, it featured innovative NMOS technology and shaped various iconic systems like Apple II and Atari. The manufacturing involved complex photolithography, with emphasis on small die size for cost efficiency. Despite challenges, the 6502’s performance and design laid a foundation for modern computing, with notable steps in transistor-level design and circuit simulation integral to its creation.

https://www.embeddedrelated.com/showarticle/1453.php

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