Plasticizer migration is the real cause behind cable-shaped indents found on retro computer cases. PVC cable insulation contains plasticizers that slowly migrate into adjacent ABS plastic when cables are wrapped tightly around devices during storage. This leaves visible impressions and makes the PVC brittle over time. To prevent damage, avoid wrapping PVC cables around devices, keep them physically separated from ABS plastics, and store in cool environments. The problem is especially common with 1980s gear made before phthalate-free and more stable plasticizer formulations were developed.
Nguồn: https://hackaday.com/2026/06/30/retro-gear-and-the-mystery-of-cables-melting-into-cases-while-in-storage. 8sync News chỉ tóm tắt và dẫn link; bản quyền nội dung thuộc tác giả và nguồn gốc.
Dự án DIY này chế tạo một chiếc USB drive hoạt động dựa trên bộ nhớ lõi từ 64-bit, công nghệ lưu trữ cũ kỹ. Sử dụng mạch in CNC, IC điều khiển L293 H-bridge, ESP32 làm giao diện USB, bộ nhớ lõi từ yêu cầu logic đọc/ghi/khôi phục phức tạp do tính chất phá hủy khi đọc, toàn bộ được ngâm trong dầu silicone để ổn định nhiệt độ. Dù không thực tế (ESP32 tiêu tốn nhiều bộ nhớ hơn dung lượng lõi từ), đây là dự án phần cứng retro hấp dẫn.
Lập trình viên muốn khám phá cách kết hợp logic cổ điển với hiện đại để giải quyết vấn đề storage trong một thiết bị USB thực tế, đồng thời tìm hiểu về kỹ thuật điều khiển và bảo vệ hệ thống từ cơ sở vật lý.
Developer Yeo Kheng Meng built a Swift development environment that targets the Apple II platform, covering the original 1977 model through the IIe. Since the Apple II runs a 1 MHz 6502 CPU, the approach compiles Swift to bytecode executed by a virtual machine running on the 6502. The setup requires a 48 KB RAM upgrade but otherwise targets stock hardware. Claude Code and GPT 4.5 Codex assisted in piecing the project together.

HamsterOS is a new 32-bit multitasking graphical operating system designed to fit on a single 1.44 MB floppy disk, targeting 386 and 486-era hardware. Created by John Swiderski, it includes a suite of native applications, DOS support, and thoughtful features for vintage hardware users such as a CMOS crash counter that forces VGA safe mode after three failed boots. The project also includes HamsterWeazle, a free GUI front-end for the open-source Greaseweazle USB device, making it easier to write floppy disks without legacy hardware already running.
Jeroen Domburg (sprite_tm) presented at Hackaday Europe 2026 how he built a 1995-era MS-DOS gaming PC from bare components. His first attempt used an AMD Elan SC520 SoC paired with an FPGA and ESP32, but BGA soldering difficulties led to a redesign. The second build used a classic i486 DX4-100 or AM486DX5-133 CPU, a C&T F65545 VGA chip, an ECP5 FPGA handling most chipset logic, and an ESP32-S3 for peripherals. Modern SDRAM replaced period-correct memory for easier FPGA integration, and mechanical storage was eliminated. The project eventually booted to a DOS prompt, ran benchmarks and games like Commander Keen, and was packaged into a portable unit called the Vapourdeck.
A look at reviving the i-Buddy, a USB HID accessory originally designed for MSN Messenger that could light up, twist, and flap wings in response to IM notifications. Using a Windows 7 PC, the Escargot service (a community-run MSN Messenger revival), and a patched Windows Live Messenger 2009 client, the i-Buddy is brought back to life after tracking down a compatible version 2.10 of its software from an old forum post.
Lance Harvie revisits his collection of vintage Transputer boards, including a university-era T400 board and a newly acquired four-processor T425 board. The Transputer was a 1980s UK-designed processor built for task-level parallelism by networking standalone compute nodes — a precursor to modern cluster computing. The four-CPU board is notable for having all inter-processor serial links connected on-PCB, making it a self-contained parallel system, and its chips were manufactured as late as 1999 by ST Microelectronics after the UK government cancelled the project. Lance plans to eventually power up the boards and interface them with a modern Linux machine.