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Yesterday β€” 12 September 2026Tech

Looking at a TRS-80 12 MB External Hard Drive from 1983

12 September 2026 at 04:00

Although hard disks weren’t a common feature yet in many home computers in the 1980s, they were becoming increasingly more affordable. For relative meanings of the word β€˜affordable’, naturally. This is illustrated by the 12 MB HDD for the Radio Shack TRS-80 that [Clint] over atΒ LGR recently took a peek at.

Costing a cool $3,495 in 1983 – or $11,932 in 2026 USD – this 12 MB storage wonder used a Tandon TM-603 full-height 5.25β€³ HDD inside. Lacking a working TRS-80 to try it out with, the video is limited to just a basic powering up and opening up of the unit, but [Clint] will be donating it to a computer museum who can hopefully put it to use again.

The connection to the TRS-80 computer is handled by a ribbon cable, while the HDD has its own built-in power supply, rated at 60 Watt.

On the main board for the external HDD controller there is a Signetics 8X300 microprocessor that forms the brains of what makes it into an external drive for the TRS-80. Despite its age, it still looks brand new inside, so despite the Rifa capacitors in the PSU, [Clint] decided to power it on. This resulted in an auditory experience that’s probably best compared to a very rusty jet engine spinning up after languishing for a decade prior to spooling up for take-off.

Hopefully we’ll find out whether this particular unit and its HDD are still working in 2026.

Before yesterdayTech

New bootloader lets you take the "Meta" out of the original Meta Quest

25 August 2026 at 12:04

Remember the original Quest headset that Meta (then Oculus) trumpeted back in 2019? Meta seems to hope you don't, since the company officially stopped supporting the wireless VR headset in 2023 to focus on the more popular Quests 2 and 3. However, tinkerers haven't abandoned the hardware and recently released a new root-access exploit and bootloader that gives "developers and enthusiasts full control over Quest 1 hardware."

The QuestStack project integrates previously known vulnerabilities in the Quest's Android fastboot process into a privilege escalation chain that leads easily to full root access on the device. The bootloading process is now streamlined enough that it can be completed without any downloads through a web interface after connecting the headset to a PC.

With this exploit, the original Quest hardware can now be officially divorced from any reliance on Meta's servers or services to be useful. That means enterprising Quest owners should be able to sideload apps without needing to register for a Meta Developer account and activating Developer Mode through Meta's mobile app. It also means users should be able to go through the initial setup and login steps for a fresh Quest headset even if and when Meta decides to shut down the servers that currently support this process.

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Β© Sam Machkovech

Bluetooth Shock Collar Keeps Wearer On Task

23 August 2026 at 07:00

Like a lot of us [Liam Kloppers] had a problem with doomscrolling. Unwilling to go cold-turkey because he does find some utility in social media. He tried a number of things before deciding to say β€œScrew it” and just go full Pavlov on himself with some old-fashioned classical conditioning. Who needs willpower when you have electric shocks to dissuade you?

The key here was finding an electric-shock dog collar that could be controlled via a smartphone application, which meant he could reverse-engineer its Bluetooth protocol and get it linked up to his own software. The initial implementation ties his quick-and-dirty Python control program with a web server living on his laptop, which he’s configured MacroDroid to call on when his personal criterion for β€˜doomscrolling’ is met.

With the shock collar wrapped around his leg, [Liam] was ready to test. It turns out dogs are a lot tougher than people, because even when set to a low level, the shock from the device made him toss his phone across the room and had him hesitant to even pick it up again.

Since he couldn’t bring himself to put the shock collar back onto his leg, he’s now thinking of an audible alarm, something we’ve seen work before. If you’re as unhappy with your habits as [Liam], perhaps consider a device like Commodore’s social-media-free phone before resorting to self-electrocution.

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