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Inside the 8086 processor, tiny charge pumps create a negative voltage
Introduced in 1978, the revolutionary Intel 8086 microprocessor led to the x86 processors used in most desktop and server computing today....
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Raspberry Pi 4: Hardware accelerated video decoding (GPU) in Chromium
Following these steps, you will add hardware acceleration decoding capabilities to the Chromium web browser. This is an extension to the tutorial about DRM for Chromium on the Raspberry Pi. Videos from Amazon Prime, Netflix, Disney+, Youtube, etc. can be decoded using the Raspberry Pi GPU.
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Reverse-engineering the first FPGA chip, the XC2064
A Field-Programmable Gate Array (FPGA) can implement arbitrary digital logic, anything from a microprocessor to a video generator or crypt...
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Commodore SX-64 keyboard restoration
Extreme refurbishing of a Commodore SX-64 keyboard. Lots of putty, epoxy resin and spray painting with original color and more :)
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Reverse Engineering the Comtech AHA363 PCIe Gzip Accelerator Board
All this work was done in November last year. I haven’t worked on it since, but others have shown interest in picking this up, so it’s about time this gets thrown out in the open.
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The Forgotten Ones: HP Nanoprocessor
Original Nanoprocessor prototypes from 1974-75. Note hand written wafer number, open die cover and early part number (94332)
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Building a Raspberry Pi GPS Speedometer
Back in April of last year, the speedometer failed in my ‘94 Explorer. Rather than hunting down a replacement cable and tearing apart the dash just to restore an old analog needle, I opted to build a digital replacement using a Raspberry Pi and GPS.
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Ice Lake AVX-512 Downclocking
Examining the extent of AVX related downclocking on Intel’s Ice Lake CPU
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Gathering Intel on Intel AVX-512 Transitions
Investigating some details of SIMD related frequency transitions on Intel CPUs.
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We Replaced an SSD with Storage Class Memory
MongoDB's blog includes technical tutorials, MongoDB best practices, customer stories, and industry news related to the leading non-relational database.
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Lamphone: Real-Time Passive Sound Recovery from Light Bulb Vibrations
Recent studies have suggested various side-channel attacks for eavesdropping sound by analyzing the side effects of sound waves on nearby objects (e.g., a bag of chips and window) and devices (e.g., motion sensors). These methods pose a great threat to privacy, however they are limited in one of the
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Raspberry Pi 400 teardown and review
Today Raspberry Pi Trading announced the Raspberry Pi 400, the latest in the series of small education-focused computers that started with the original Raspberry Pi in 2012. For years, people have come up with creative ways to hack a Pi into keyboards, like the Original Pi in an old Mitsumi keyboard, or the Pi 3 A+ in…
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Logic, Before ICs
When integrated circuits were too expensive for common hobby use, we had to build digital logic out of discrete transistors.
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Amazon One – Palm recognition for Amazon Go
We’re always looking for ways to make our customers’ lives better, and one area where we’ve spent time innovating is the customer shopping experience in stores. Today, our physical retail team is excited to introduce a new innovation called Amazon One.
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RISC-V Stumbling Blocks
Recently, I’ve started to explore RISC-V. I experienced the journey as pretty refreshing, particularly because I’ve been working on x86 low-level software almost exclusively for about 10 years.
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Building a $400 at-home DIY spin bike for Peloton and Apple Fitness+
Looking to build a DIY bike for spin classes at home? I have you covered with my build and review of the Sunny bike and accessories for under $400
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Samsung Begins Mass Production of 512GB EUFS 3.1
The new 512GB eUFS 3.1 stores 8K videos and large-size image files without buffering
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Cloning a 6502 Apple-1 in just 930 logic gates
Blog about vintage computers and homebrewing computers.
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Die analysis of the 8087 math coprocessor's fast bit shifter
Floating-point numbers are very useful for scientific programming, but early microprocessors only supported integers directly. 1 Although...
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How many registers does an x86-64 CPU have?
x86 is back in the general programmer discourse, in part thanks to Apple’s M1 and Rosetta 2 . As such, I figured I’d do yet another x86-64 post.
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New hard drive rituals (2018)
Over the last 10 years that I've been messing around with Linux servers (hence the name of the site by the way) there's been one thing above all else that's always required special care - hard drives. They are mechanical beasts just waiting to eat your data at any time. Entire businesses are built around their…
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Mishap during experiment led quantum researchers to crack a 58-year-old puzzle
A mishap during an experiment led UNSW quantum computing researchers to crack a mystery that had stood since 1961.
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Apple Silicon M1 Chips and Docker
Learn from Docker experts to simplify and advance your app development and management with Docker. Stay up to date on Docker events and new version