Classic Computers, Enduring Ideas
Classic Computers, Enduring Ideas
Internet Infrastructure Map shows growth of undersea cables and peering capacity over time. Users can animate or navigate year by year. As of 2025, there are 602 total cables, with 31 new ones spanning 144,320 km. Top cities by peering capacity include Amsterdam (200 Tbit) and Frankfurt (166 Tbit). Regional capacities: Europe 1.5 Pbit, Asia 430 Tbit, North America 403 Tbit. For more insights, visit the linked blog.
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Restoring a ZX Spectrum+ Toastrack: Celso Martinho discusses his efforts to restore a ZX Spectrum 128K Toastrack, sharing childhood memories and detailing the restoration process. Initially assessing the device’s condition, he made various repairs, including reflowing solder, upgrading the power regulator to a DC-DC Buck converter, cleaning the edge connector, improving video signal quality, and replacing the keyboard membrane. He also switched to HDMI video output for better quality. After enhancements, the restored Toastrack is now fully operational and ready for use.
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