Science

New 'All-Optical' Nanoscale Sensors of Force Access Previously Unreachable Environments (phys.org) 8

ZipNada shares a report from Phys.org: In a paper published today in Nature, a team led by Columbia Engineering researchers and collaborators report that they have invented new nanoscale sensors of force. They are luminescent nanocrystals that can change intensity and/or color when you push or pull on them. These "all-optical" nanosensors are probed with light only and therefore allow for fully remote read-outs -- no wires or connections are needed. They have 100 times better force sensitivity than the existing nanoparticles that utilize rare-earth ions for their optical response, and an operational range that spans more than four orders of magnitude in force, a much larger range -- 10-100 times larger -- than any previous optical nanosensor. "We expect our discovery will revolutionize the sensitivities and dynamic range achievable with optical force sensors, and will immediately disrupt technologies in areas from robotics to cellular biophysics and medicine to space travel," said Jim Schuck, associate professor of mechanical engineering.

"The importance of developing new force sensors was recently underscored by Ardem Patapoutian, the 2021 Nobel Laureate who emphasized the difficulty in probing environmentally sensitive processes within multiscale systems -- that is to say, in most physical and biological processes," Schuck notes. "We are excited to be part of these discoveries that transform the paradigm of sensing, allowing one to sensitively and dynamically map critical changes in forces and pressures in real-world environments that are currently unreachable with today's technologies."
Windows

With 10 Months of Support Remaining, Windows 10 Still Dominates (theregister.com) 164

Despite Microsoft's push for Windows 11, Windows 10 continues to dominate the desktop OS market, rising to 62.7% market share in December 2024. The Register reports: Figures for December 2024 from Statcounter -- used because Microsoft rarely shares usage data unless it has something to boast about -- confirm Windows 10's market share has inched up to 62.7 percent compared to the previous month while Windows 11's share fell back to 34.12 percent (from 34.94 percent in November 2024). Even though Windows 11's percentage of the pie is still bigger than it was this time last year (when Statcounter pegged it at 26.54 percent), the fact the new OS is still nowhere near to overtaking Windows 10 may alarm some Microsoft executives. [...]

Canalys analyst, Kieren Jessop, noted that when looking at the more than 230 countries and regions tracked by Statcounter, Windows 10 share had actually only increased in just under a quarter of them, but that increase made an outsized impacted. Jessop cited the example of the US, where Windows 10 market share had gone from 58 percent in October 2024 to 67 percent in December. [...] Many editions of Windows 10 are due to drop out of free support on October 14, 2025. Affected users will then have the option to purchase Extended Security Updates (ESU) to keep the lights on a little longer or keep using the operating system and risk falling foul of unpatched vulnerabilities.
Further reading: Ex-Microsoft Designer Reveals Windows 11's Dynamic Wallpapers That May Have Been Shelved
Windows

Ex-Microsoft Designer Reveals Windows 11's Dynamic Wallpapers That May Have Been Shelved (windowscentral.com) 17

Former Microsoft designer Sergey Kisselev has shared previously unseen concepts for Windows 11 dynamic wallpapers, intended for educational devices. The animated backgrounds were designed to complement Windows 11's centered interface but never shipped with the operating system's 23H2 update as initially planned.
Facebook

Nick Clegg Is Leaving Meta After 7 Years Overseeing Its Policy Decisions (engadget.com) 8

Nick Clegg, former British Deputy Prime Minister and Meta's President of Global Affairs, is stepping down after seven years, with longtime policy executive Joel Kaplan set to replace him. Engadget reports: Clegg will be replaced by Joel Kaplan, a longtime policy executive and former White House aide to George W. Bush known for his deep ties to Republican circles in Washington. As Chief Global Affairs Officer, Kaplan -- as Semafor notes -- will be well-positioned to run interference for Meta as Donald Trump takes control of the White House. In a post on Threads, Clegg said that "this is the right time for me to move on from my role as President, Global Affairs at Meta."

"My time at the company coincided with a significant resetting of the relationship between 'big tech' and the societal pressures manifested in new laws, institutions and norms affecting the sector. I hope I have played some role in seeking to bridge the very different worlds of tech and politics -- worlds that will continue to interact in unpredictable ways across the globe."

He said that he will spend the next "few months" working with Kaplan and "representing the company at a number of international gatherings in Q1 of this year" before he formally steps away from the company.

Further reading: Meta Says It's Mistakenly Moderating Too Much
United States

US Appeals Court Blocks Biden Administration Effort To Restore Net Neutrality Rules (reuters.com) 115

A U.S. appeals court ruled on Thursday the Federal Communications Commission did not have legal authority to reinstate landmark net neutrality rules. From a report: The decision is a blow to the outgoing Biden administration that had made restoring the open internet rules a priority. President Joe Biden signed a 2021 executive order encouraging the FCC to reinstate the rules.

A three-judge panel of the Cincinnati-based 6th U.S. Circuit Court of Appeals said the FCC lacked authority to reinstate the rules initially implemented in 2015 by the agency under Democratic former President Barack Obama, but then repealed by the commission in 2017 under Republican former President Donald Trump.

The rules also forbid special arrangements in which ISPs give improved network speeds or access to favored users. The court cited the Supreme Court's June decision in a case known as Loper Bright to overturn a 1984 precedent that had given deference to government agencies in interpreting laws they administer, in the latest decision to curb the authority of federal agencies. "Applying Loper Bright means we can end the FCC's vacillations," the court ruled.

United Kingdom

UK Develops Quantum Clock To Cut Military GPS Dependence (www.gov.uk) 42

Britain's Defence Science and Technology Laboratory has developed a quantum atomic clock that will lose less than one second over billions of years, the Ministry of Defence announced on Thursday.

The UK-built device aims to reduce military reliance on GPS technology, which can be disrupted by adversaries. It will be deployable in military operations within five years, supporting navigation systems, encrypted communications, and advanced weapons systems. The $34.6 million project involves partners including Infleqtion UK, Aquark Technologies, and Imperial College London. The clock was tested outside laboratory conditions for the first time in collaboration with the Royal Navy and Army Futures team.
Operating Systems

SvarDOS: DR-DOS is Reborn as an Open Source OS (theregister.com) 68

SvarDOS, a compact open-source operating system derived from DR-DOS, has switched to using the EDRDOS kernel, marking a shift from its FreeDOS distribution roots. The change allows the operating system to fit on a single 1.4MB floppy disk while offering a network-capable package manager that can fetch from a repository of over 400 packages.

Unlike its rival FreeDOS, SvarDOS can run Microsoft Windows 3.1 natively, though the capability currently requires additional configuration. The system maintains compatibility with legacy DOS applications while providing modern features like FAT32 support and network connectivity.
The Military

NATO Plans To Build Satellite Links As Backups To Undersea Cables (tomshardware.com) 65

Tom's Hardware reports that NATO is developing an advanced system to address the growing number of undersea cable disruptions observed in recent years. Known as HEIST (Hybrid Space-Submarine Architecture Ensuring Infosec of Telecommunications), the project is designed to significantly enhance the resilience of undersea communication networks. HEIST will enable damage detection with an accuracy of one meter, facilitate rapid data rerouting through satellite networks when disruptions occur, and establish open-source protocols to foster global collaboration. From the report: Satellites are the primary backups to undersea cables, but their bandwidth is far behind physical connections. For example, Google's latest fiber-optic lines can hit 340 terabits per second. In contrast, the frequency used by most satellites -- 12 to 18GHz -- can only handle about 5 gigabits per second or about 0.0015% of the maximum throughput of Google's fiber connection.

Work is underway to upgrade satellites from radio transmissions to lasers, increasing the speed by about 40 times to 200 Gbps. Starlink already uses this technology to communicate between its satellites, while Amazon is also developing it for its own Project Kuiper. However, it still faces challenges, like poor visibility and targeting precision between the satellite and ground station.

Because this is a major NATO project, the alliance plans to open-source part of the process. Making it public would allow anyone interested to find holes and make many iterations. Gregory Falco, the NATO Country Director for HEIST, believes that this is the fastest way for the project to achieve its goals and help prevent any catastrophic loss of data transmission in case of deliberate attacks against these underwater infrastructures in international waters.

Social Networks

Venezuela Issues $10 Million Fine For TikTok Over Deadly Viral Challenges (apnews.com) 32

Venezuela's Supreme Court on Monday fined TikTok $10 million for failing to prevent viral challenges allegedly linked to the deaths of three children. It also ordered the platform to establish a local office to oversee content compliance with national laws. The Associated Press reports: Judge Tania D'Amelio said TikTok had acted in a negligent manner and gave it eight days to pay the fine [...]. The judge did not explain how Venezuela would force TikTok, whose parent company is based in China, to pay the fine. Venezuela has blocked dozens of websites in previous years for not complying with regulations set by its telecommunications commission.

In November, Venezuelan President Nicolas Maduro blamed TikTok for the death of a 12-year-old girl who allegedly died after participating in a TikTok challenge that involved taking tranquilizer pills and not falling asleep. Venezuela's Education Minister Hector Rodriguez also said last month that a 14-year-old died after taking part in a TikTok challenge that involved sniffing substances. And on Nov. 21, Venezuela's attorney general blamed video challenges on TikTok for the death of a third child.

United States

New York Retires Iconic Subway Cars 24

The Metropolitan Transportation Authority has announced plans to retire its iconic R46 subway cars, triggering nostalgia among New Yorkers who cherished their distinctive seating arrangement. The fleet -- which has served A, C, N, R, Q, and W lines for five decades -- will be replaced by R211 cars expected for delivery in 2027.

The R46's perpendicular seating configuration, designed for comfort during long trips to destinations like Coney Island, encouraged social interaction among passengers, according to New York Transit Museum director Concetta Bencivenga. The new R211 cars will feature longitudinal seating to improve passenger flow and reduce platform waiting times. Currently, 696 of the original 754 R46 cars remain in service. The replacement R211 cars will include security cameras, wider seats, improved signage, and better lighting.
Social Networks

Trump Urges Supreme Court To Delay TikTok Ban (bbc.com) 119

President-elect Donald Trump has asked the Supreme Court to delay the upcoming TikTok ban while he works on a "political resolution." In a legal brief (PDF) on Friday, his lawyer said Trump "opposes banning TikTok" and "seeks the ability to resolve the issues at hand through political means once he takes office." The BBC reports: Trump had met with TikTok's CEO, Shou Zi Chew, at his Mar-a-Lago estate in Florida last week. In his court filing on Friday, Trump said the case represents "an unprecedented, novel, and difficult tension between free-speech rights on one side, and foreign policy and national security concerns on the other." While the filing said that Trump "takes no position on the underlying merits of this dispute", it added that pushing back the 19 January deadline would grant Trump "the opportunity to pursue a political resolution" to the matter without having to resort to the court. [...]

Trump has publicly said he opposes the ban, despite supporting one in his first term as president. "I have a warm spot in my heart for TikTok, because I won youth by 34 points," he claimed at a press conference earlier in December, although a majority of young voters backed his opponent, Kamala Harris. "There are those that say that TikTok has something to do with that," he added.
Earlier this month, TikTok asked the Supreme Court to block the ban, saying that the law violates both its First Amendment rights and those of its 170 million American users.
Technology

QR-Style Codes Could Replace Barcodes 'Within Two Years' (theguardian.com) 80

Traditional barcodes are set to be replaced by next-generation QR-style codes by 2027, offering enhanced functionality such as embedding sell-by dates, allergens, and recycling information. The Guardian reports: Tesco has started using them on some products, and other trials have suggested that waste of perishable food such as poultry can be cut by embedding sell-by dates in the new QR-style codes, allowing for more dynamic discounting. QR (quick response) codes will allow customers to instantly access more information about the product, including how to recycle batteries, clothes and building materials when tougher environmental regulations bite. But they will also put a greater demand on the world's cloud computing resources, where the extra data they contain will be stored -- meaning a potentially greater carbon footprint.

The first barcode was read in an Ohio supermarket in June 1974 when a packet of Juicy Fruit chewing gum was rung up. It was devised by Joe Woodland, an inventor who had been implored by a retailer frustrated at losing profits, to speed up checkout queues and stocktaking. Coca-Cola has used the new generation of codes in parts of Latin America for refillable bottles, with the QR code allowing the counting of refills so that a requirement of 25 before recycling can be enforced. The Australian supermarket chain Woolworths is said to have reduced food waste by up to 40% in some areas, as the codes allow stores to better spot products approaching expiry and discount more efficiently.
"We've defined an ambition that by the end of 2027 all retailers in the world will be able to read those next-generation barcodes," said Renaud de Barbuat, the president and chief executive of GS1. "We think it's doable ... It represents some investment on the part of retailers to adapt their point-of-sale systems, but it's already well under way."

Anne Godfrey, the chief executive of GS1 UK, said: "This has been in the works for some time, but Covid really accelerated it. During the pandemic, everyone got used to pointing their phones at QR codes in pubs and restaurants to access the menu."
Transportation

Mercedes-backed Volocopter Files for Bankruptcy 35

German electric air taxi company Volocopter has filed for bankruptcy protection, the latest in a string of similar startups to hit financial turbulence. From a report: Volocopter is one of the more well-funded electric air taxi startups, having raised hundreds of millions of dollars over nearly a decade with backing from major automakers like Germany's Mercedes-Benz and China's Geely.
Google

Google CEO Warns of High Stakes in 2025 AI Race (cnbc.com) 48

Google CEO Sundar Pichai has warned employees the company faces critical challenges in 2025 as it races to catch up in AI amid rising competition and regulatory scrutiny. "The stakes are high," Pichai said at a strategy meeting, details of which were reported by CNBC. "I think it's really important we internalize the urgency of this moment, and need to move faster as a company. The stakes are high. These are disruptive moments. In 2025, we need to be relentlessly focused on unlocking the benefits of this technology and solve real user problems."

The meeting revealed employee concerns about ChatGPT "becoming synonymous to AI the same way Google is to search." In response, DeepMind co-founder Demis Hassabis outlined plans to "turbo charge" Google's Gemini app, which executives hope will become their next product to reach 500 million users. Pichai showed a chart positioning Gemini 1.5 ahead of OpenAI's GPT, though he expects "some back and forth" in 2025. The report adds: [Pichai] acknowledged that Google has had to play catchup. "In history, you don't always need to be first but you have to execute well and really be the best in class as a product," he said. "I think that's what 2025 is all about."
Government

Most Safety Complaints From Plane-Industry Whistleblowers 'Go Nowhere', Risk Retaliation (seattletimes.com) 41

America's aerospace industry is overseen by the Federal Aviation Administration (or FAA) — which also handles safety warnings from the industry's whistleblowers. But the Seattle Times says an analysis of reports to Congress found "an overwhelmed system delivering underwhelming results for whistleblowers... More than 90% of safety complaints from 2020 through 2023 ended with no violation found by the FAA, while whistleblowers reported them at great personal and professional risk." Aside from the FAA's in-house program, employees of Boeing, Spirit and the FAA can report safety hazards to the Office of Special Counsel, which has no FAA ties, or through internal employer complaint programs, such as Boeing's Speak Up and Spirit's Quality 360, to trigger company reviews... In the aftermath of the door-plug blowout over Portland, Boeing specifically asked its employees to use the Speak Up program or the FAA's internal process to report any concerns, according to Boeing spokesperson Jessica Kowal. Both have done a poor job protecting whistleblowers from retaliation, according to a congressionally appointed expert panel... While both were designed to guard against retaliation, critics say they have instead become enablers of it...

A panel of aviation safety experts in February rebuked Boeing's Speak Up program in a report to Congress. Whistleblower advocates criticized Speak Up for commonly outing whistleblowers to the supervisors they're complaining about, exposing them to retaliation. Managers sometimes investigated complaints against themselves. Employees mistrusted the program's promise of anonymity. Collectively, the befuddling maze of whistleblower options sowed "confusion about reporting systems that may discourage employees from submitting safety concerns," according to the expert panel's report....

[Boeing quality inspector Sam Mohawk, who alleged the 737 MAX line in Renton was losing track of subpar aircraft parts], continues to pursue his FAA claim, originally submitted through Boeing's Speak Up program. Months passed before Boeing addressed Mohawk's complaint. When it did, Mohawk's report was passed to the managers he was complaining about, according to Brian Knowles, Mohawk's South Carolina-based lawyer. "If you do Speak Up, just know that your report is going to go straight to the guys you're accusing of wrongdoing. They aren't going to say, 'Thanks for speaking up against us,'" Knowles said.

The article includes this quote about the FAA's in-house whistleblower program from Tom Devine, a whistleblower attorney with nearly a half-century of experience across a spectrum of federal agencies, and legal director of the nonprofit Government Accountability Project, which helps whistleblowers navigate the federal system. "It's been a disaster from the beginning. We tell everyone to avoid it because it's a trap... We've warned whistleblowers not to entrust their rights there."
AMD

How Microsoft Made 2024 the Year of Windows on Arm (theverge.com) 58

"I still can't quite believe that I'm using an Arm-powered Windows laptop every day," writes a senior editor at the Verge: After more than a decade of trying to make Windows on Arm a reality, Microsoft and Qualcomm finally nailed it this year with Copilot Plus PCs. These new laptops have excellent battery life and great performance — and the app compatibility issues that have plagued Windows on Arm are mostly a thing of the past (as long as you're not a gamer). Microsoft wanted 2024 to be "the year of the AI PC," but I think it was very much the year of Windows on Arm...

The key to Windows on Arm's revival this year was Qualcomm's Snapdragon X Elite processors, which were announced in April. They've provided the type of performance and power efficiency only previously available with Apple's MacBooks and challenged Intel and AMD to do better in the x86 space. After much debate over Microsoft's MacBook Air-beating benchmarks, the reviews rolled in and showed that Windows on Arm was indeed capable of matching and beating Apple's MacBook Air. Qualcomm even hired the "I'm a Mac" guy to promote Windows on Arm PCs, showing how confident it was in challenging Apple's laptop dominance.

Microsoft and Qualcomm also worked closely with developers to make key apps compatible, and it's now very rare to run into an app compatibility issue that can't be solved by a native Arm64 version or Microsoft's improved emulator. Even Google, which previously shunned Windows Phone, has created Arm64 versions of Chrome and Google Drive to support Microsoft's efforts. With developers continually providing native versions of their apps, it makes it a lot easier to switch to a Windows on Arm laptop. The only big exception is gaming, where x86 still reigns supreme for compatibility and performance...

It's hard not to see 2025 as the year that Windows on Arm continues to eat into the laptop space. A Dell leak revealed Qualcomm is preparing new chips for 2025, and the chip maker has also been rolling out cheaper Arm-based chips to bring laptop prices down.

The article acknowledges that both AMD and Intel "have the key advantage of game compatibility that Windows on Arm is definitely not ready for..." But "Given the Windows on Arm gaming situation, a new generation of Nvidia's GPUs could help generate fresh excitement around x86 laptops throughout 2025." And "Nvidia might also be planning to help the Windows on Arm effort. The chip maker has long been rumored to be planning to launch Arm PC chips as soon as 2025... Whatever happens to laptops in 2025, you can guarantee that there's going to be fierce competition between Intel, AMD, and Qualcomm."

But the author still complains about the dedicated Copilot key on his new WIndows-on-Arm laptop. "While the Copilot experience on Windows has gone through several confusing revisions, it's still a key I accidentally press and then get frustrated when a Copilot window appears."
The Internet

Finland Finds Drag Marks Near Broken Undersea Cable. Russia's 'Shadow Fleet' Suspected (msn.com) 160

Reuters reports: Finnish police said on Sunday they had found tracks that drag on for dozens of kilometres along the bottom of the Baltic Sea where a tanker carrying Russian oil is suspected of breaking a power line and four telecoms cables with its anchor... A break in the 658 megawatt (MW) Estlink 2 power cable between Finland and Estonia occurred at midday on Wednesday, leaving only the 358 MW Estlink 1 linking the two countries, grid operators said. They said Estlink 2 might not be back in service before August.
In an interesting twist, the New York Times reports that the ship "bears all the hallmarks of vessels belonging to Russia's shadow fleet, officials said, and had embarked from a Russian port shortly before the cables were cut." If confirmed, it would be the first known instance of a shadow fleet vessel being used to intentionally sabotage critical infrastructure in Europe — and, officials and experts said, a clear escalation by Russia in its conflict with the West... NATO's general secretary, Mark Rutte, responding to requests from the leaders of Finland and Estonia, both member nations, said the Atlantic alliance would "enhance" its military presence in the Baltic Sea...

Since Russia began assembling its fleet, the number of shadow vessels traversing the oceans has grown by hundreds and now makes up 17 percent of the total global oil tanker fleet... Nearly 70 percent of Russia's oil is being transported by shadow tankers, according to an analysis published in October by the Kyiv School of Economics Institute, a research organization based in Ukraine... The authorities in Finland are still investigating whether the "Eagle S" engaged in a criminal act. But the sheer size of the shadow fleet might have made using some of these vessels for sabotage irresistible to Russia, [said Elisabeth Braw, a senior fellow at the Atlantic Council who has researched and written about shadow fleets]...

While it's still not certain that this week's cable cutting was done intentionally, the Baltic Sea, for a number of reasons, is an ideal arena to carry out sabotage operations. It is relatively shallow and is crisscrossed with essential undersea cables and pipelines that provide energy, as well as internet and phone services, to a number of European countries that are NATO members. Russia has relatively unfettered access to the sea from several ports, and its commercial vessels, protected by international maritime law, can move around international waters largely unmolested... The suspicions that Russia was using shadow vessels for more than just escaping sanctions existed before this week's cable cutting. Last April, the head of Sweden's Navy told a local news outlet that there was evidence such ships were being used to conduct signals intelligence on behalf of Russia and that some fishing vessels had been spotted with antennas and masts not normally seen on commercial vessels. Since the war began, there has also been an uptick in suspicious episodes resulting in damage to critical undersea infrastructure...

Hours after Finland's energy grid operator alerted the police that an undersea power cable was damaged on Wednesday, Finnish officers descended by helicopter to the ship's deck and took over the bridge, preventing the vessel from sailing farther. By Friday, it remained at anchor in the Gulf of Finland, guarded by a Finnish Defense Forces missile boat and a Border Guard patrol vessel.

The cable incident happened just weeks after the EU issued new sanctions targetting Russia's shadow fleet, Euronews reports. "A handful of Chinese companies suspected of enabling Russia's production of drones are also blacklisted as part of the agreement, a diplomat told Euronews." The "shadow fleet" has been accused of deceptive practices, including transmitting falsified data and turning off their transporters to become invisible to satellite systems, and conducting multiple ship-to-ship transfers to conceal the origin of the oil barrels...
Transportation

Electric Air Taxis are Taking Flight. Can They Succeed as a Business? (msn.com) 43

An anonymous reader shared this report from the Washington Post: Archer is aiming to launch its first commercially operated [and electrically-powered] flights with a pilot and passengers within a year in Abu Dhabi. A competitor, Joby Aviation, says it is aiming to launch passenger service in Dubai as soon as late 2025. Advancements in batteries and other technologies required for the futuristic tilt-rotor craft are moving so fast that they could soon move beyond the novelty stage and into broader commercial use in a matter of years. Both companies are laying plans to operate at the 2028 Olympics in Los Angeles...

Scaling the industry from a novelty ride for the wealthy to a broadly available commuter option will take billions more in start-up money, executives said, including building out a network of takeoff and landing areas (called vertiports) and charging stations. Some high-profile ventures have already faltered. A plan for air taxis to transport spectators around the Paris Olympics fizzled... Still, investors, including big names like Stellantis and Toyota, have poured money into Silicon Valley companies like Archer and Joby. Boeing and Airbus are developing their own versions. All are betting that quieter, greener and battery-powered aircraft can revolutionize the way people travel. Major U.S. airlines including American, Delta, Southwest and United also are building relationships and planting seeds for deals with air taxi companies.

Two interesting quotes from the article:
  • "It feels like the modern-day American Dream, where you can invent a technology and actually bring it to market even [if it's] as crazy as what some people call flying cars."

    — Adam Goldstein, CEO of Archer Aviation.
  • "They have created these amazing new aircraft that really 10 or 15 years ago would've been unimaginable. I think there's something innately attractive about being able to leapfrog all of your terrestrial obstacles. Who hasn't wished that if you live in the suburbs that, you know, something could drop into your cul-de-sac and 15 minutes later you're at the office."

    — Roger Connor, curator of the vertical flight collection at the Smithsonian's National Air and Space Museum.

HP

How a Retrocomputing Enthusiast Got a 30-Year-Old Clamshell Computer Online (youtube.com) 18

It had a 4.8-inch display. Introduced in 1991, Hewlett-Packard's (DOS-based) HP 95LX Palmtop PC — a collaboration with Lotus — was finally discontinued back in 2003.

But one found its way to long-time Slashdot reader Shayde (who in November repaired a 48-year-old handheld videogame console from Mattel). "I really wanted to get this HP95LX talking to the internet at large," they told Slashdot, " but network stacks for DOS in 1991 were pretty limited, and this machine didn't even have the hardware for a network connection.

"It did have a serial port though — a flat 4-pin custom interface. I did a bunch of research and learned how to custom-build an RS-232 hookup for this port, and using an external Wifi module, got it online — and talking to the retrocomputing BBS!"

There's a video documenting the whole experience. (Along the way he uses 20-gauge hook-up wire from Amazon, a zip tie, solder cups, and an internet modem (the WiFi232 Hayes modem emulator). The whole thing is powered by two AA batteries — it has 512K of memory, and about half a meg of storage. My favorite technical detail?

"Conveniently, the HP 95 [Palmtop PC] uses the exact same pinout as the HP 48GX handheld graphing calculator. So looking up on the Internet, we can determine what pins we need to map from the HP unit over to what would be a DB25 serial port..."

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