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Blog
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HP Visualize B2000 that helped win a Nobel Prize in Physics
I acquired an HP Visualize machine from the ESO observatories in Chile; it was part of the VLT Paranal hardware used during research into the supermassive black hole Sagittarius A* in the 2000s. Thanks to this equipment, the theory regarding the existence of a black hole in our galaxy was verified, helping three prominent researchers win a prestigious award.
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Improving the Command Line Experience in MS-DOS
Although MS-DOS is often considered a very limited environment compared to modern shells like Bash or Zsh, the latest versions of the system have incorporated tools that have significantly improved the user experience. Here's how to get the most out of them.
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Restoration of a ThinkPad 750Cs, one of IBM's most important machines
During the summer of 2025, my wife and I traveled to Orlando, Florida, to visit the Visitor Complex at the Kennedy Space Center. Before leaving the city, I wanted to visit some thrift stores, like Goodwill, and I was lucky enough to find a ThinkPad 750Cs that, coincidentally, turned out to be from the same series that first went into space.
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PS/note, the laptop that IBM forgot
A couple of years ago, I got this laptop; it caught my eye because it looked exactly like the first Thinkpads. Despite having worked for IBM back in 2006, I had never seen, heard, or read about this model in IBM documentation; it's been completely removed from the company's historical information...
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Sharp PC-1251 Pocket PC Back to Life
A few years ago, I got a Sharp PC-1251, which came with its docking station, printer, and cassette drive. The system was practically complete, including several tapes with programs from its previous owner. However, nothing is perfect; its display was damaged by "Vinegar Syndrome"...
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I Built a RetroPC for a LAN Party
In the early 2000s, the internet was slow and unstable. To play with friends, the best option was to physically bring computers to a friend's house and connect via a local area network. Recently, a group of vintage computer enthusiasts decided to revive this experience with a clear rule: computers had to be at least 20 years old, which put us at a maximum age of 2003.
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Error in MS-Dos does not detect disk change
On my old IBM PS/1, since I bought it I had encountered a tedious problem, it was not able to detect a floppy disk change, at first I thought it was a problem with the floppy disk drive, I performed maintenance on it and thought it had worked, then it failed again, I tried to change the drive for others and the problem persisted. Here I tell you about this strange behavior and how it was solved.
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Repairing a 3 1/2
I restored an old IBM PS/1, when installing the operating system I noticed a strange behavior, my disk drive read the disks correctly, but when changing from one disk to another it continued to show the information of the previous disk, as if it had not been removed.
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Saving an IBM PS/1 from destruction
In a vintage computer group, a worker from a scrap processing company asked if an IBM PS/1 from 1992 had any value. I immediately contacted him, and we were able to reach an agreement to buy it and save it from its unfortunate fate.
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