Published on: 2025-06-05 11:35:07
LFSR CPU running Forth Author: Richard James Howe License: 0BSD / Public Domain Email: mailto:[email protected] Repo: https://github.com/howerj/lfsr-vhdl This project contains a CPU written in VHDL for an FPGA using a Linear Feedback Shift Register (LFSR) instead of a Program Counter, this was sometimes done to save space as a LFSR requires fewer gates than an adder, however on an FPGA it will make very little difference as the units that make an FPGA (Slices/Configurable Logic Blocks)
Keywords: bit bits cpu instruction lfsr
Find related items on AmazonPublished on: 2025-06-02 20:04:35
Network Working Group D. Eastlake, 3rd Request for Comments: 4086 Motorola Laboratories BCP: 106 J. Schiller Obsoletes: 1750 MIT Category: Best Current Practice S. Crocker June 2005 Randomness Requirements for Security Status of This Memo This document specifies an Internet Best Current Practices for the Internet Community, and requests discussion and suggestions for improvements. Distribution of this memo is unlimited. Copyright Notice Copyright (C) The Internet Society (2005). Abstract Securit
Keywords: bits random randomness rfc security
Find related items on AmazonPublished on: 2025-06-07 11:55:37
The radix 2^51 trick Faster addition and subtraction on modern CPUs Do you remember how to do long addition on paper? ¹¹ ¹ 6876 + 3406 ------ 10282 Starting from the “ones” position, we add 6 + 6 = 12, write down a 2 and carry a 1. We proceed to the left, one position at a time, until there are no more digits to add. When implementing addition for large integers (e.g. 264 and above), it’s common to write code that looks quite similar to this algorithm. Interestingly, there’s a straightforwa
Keywords: add bit bits carries digits
Find related items on AmazonPublished on: 2025-06-09 21:00:18
Simple Habit / Elyse Betters Picaro / ZDNET Habits can be good or bad, motivating or distracting. The goal should be to create and develop good habits so your daily life is easier and more enjoyable. But sometimes, it's hard to see the patterns your habits create. Without recognizing those patterns, making effective change can be a challenge. That's where habit trackers come into play. These tools provide a visual representation of your habits and progress to help you maintain accountability a
Keywords: app habit habits track tracker
Find related items on AmazonPublished on: 2025-06-13 17:45:36
Fantastical has always made creating new calendar events easy with natural language input within the app. Now Fantastical is enabling calendar event creation that requires almost no input, and you don’t even have to open the app. Flexibits, the team behind Fantastical, is leveraging AI (specifically Google Gemini) in a new way to help users convert emails into calendar entries. The way it works is straightforward. Forward an email to Fantastical ([email protected]) using any of the email a
Keywords: calendar email emails fantastical flexibits
Find related items on AmazonPublished on: 2025-06-16 05:16:00
A hot potato: Google has reignited debate over the future of digital security, revealing that the hardware needed to break widely used encryption could be closer than previously thought. The research, led by Craig Gidney and posted to the preprint server arXiv, shows that a 2,048-bit RSA encryption key – a standard for online security – could be cracked in less than a week by a quantum computer with fewer than one million noisy qubits. The finding is a dramatic reduction from earlier estimates
Keywords: computers hardware quantum qubits study
Find related items on AmazonPublished on: 2025-06-18 01:35:19
is a senior reporter who’s been covering and reviewing the latest gadgets and tech since 2006, but has loved all things electronic since he was a kid. The company had spent over a year developing a new version of the Vestaboard called the Smart Bits that was “a completely new way to experience Vestaboard’s patented character units” that also “pushed the limits of design, engineering, and manufacturing,” according to the company’s founder and CEO, Dorrian Porter. But, when faced with economic un
Keywords: bits company display note vestaboard
Find related items on AmazonPublished on: 2025-06-20 20:19:36
Introduction Have you ever heard someone say that a disk or memory is a “bunch of bits”? I’m not sure about this idea’s origin, but it’s a pretty good idea. It reduces the mystery of computers. For example, it rules out the theory that inside of my computer is a very flat elf. No, inside are bits, encoded on electrical components. Getting close and personal with bits Yet, computers are still pretty mysterious. What are these bits? What do they mean? Can we play with them, parse them, make s
Keywords: 00 0000 0x00 bits inode
Find related items on AmazonPublished on: 2025-06-25 22:04:14
A shower thought turned into a beautiful Collatz visualization I recently went on a nice long SCUBA diving trip with my wife and daughters. Lots of diving implies lots of showers, and lots of showers means lots of shower-thoughts! An especially interesting one I had turned into a nice way to visualize some aspects of the Collatz Conjecture. The Collatz Conjecture defines a very simple function on all positive integers as follows: If the number is even, divide it by 2 If the number is odd, mu
Keywords: bits collatz fractions plot thought
Find related items on AmazonPublished on: 2025-06-30 12:57:19
With the following code, we can check whether a year 0 ≤ y ≤ 102499 is a leap year with only about 3 CPU instructions: bool is_leap_year_fast(uint32_t y) { return ((y * 1073750999) & 3221352463) <= 126976; } How does this work? The answer is surprisingly complex. This article explains it, mostly to have some fun with bit-twiddling; at the end, I'll briefly discuss the practical use. This is how a leap year check is typically implemented: bool is_leap_year(uint32_t y) { if ((y % 4) != 0) retu
Keywords: 100 bit bits multiple return
Find related items on AmazonPublished on: 2025-07-03 05:29:12
The world of computers is dominated by binary. Silicon transistors are either conducting or they're not, and so we've developed a whole world of math and logical operations around those binary capabilities. And, for the most part, quantum computing has been developing along similar lines, using qubits that, when measured, will be found in one of two states. In some cases, the use of binary values is a feature of the object being used to hold the qubit. For example, a technology called dual-rail
Keywords: hardware hold quantum qubits states
Find related items on AmazonPublished on: 2025-07-07 12:42:33
https://press.asimov.com/articles/dna-information This is an article that just appeared in Asimov Press, who kindly agreed that I could publish it here and also humored my deep emotional need to use words like “Sparklepuff”. Do you like information theory? Do you like molecular biology? Do you like the idea of smashing them together and seeing what happens? If so, then here’s a question: How much information is in your DNA? When I first looked into this question, I thought it was simple: Hum
Keywords: bits definition dna information percent
Find related items on AmazonPublished on: 2025-07-22 19:46:06
May 01, 2025 at 18:35 Tags Go The original motivation for the creation of Bloom filters is efficient set membership, using a probabilistic approach to significantly reduce the time and space required to reject items that are not members in a certain set. The data structure was proposed by Burton Bloom in a 1970 paper titled "Space/Time Trade-offs in Hash Coding with Allowable Errors". It's a good paper that's worth reading. Why Bloom filters? Suppose that we store some information on disk and
Keywords: bits bloom data filter hash
Find related items on AmazonPublished on: 2025-07-31 21:00:00
Internet terminology is often maddeningly confusing. Case in point: Megabits and megabytes. Both refer to units of digital information, but the difference is subtle enough to cause plenty of confusion. Knowing the difference between the two terminologies can make all the difference when picking out an internet plan or figuring out how quickly you can download a file. Don’t worry -- we’ll clear it all up so you never get scolded on Reddit again. Megabits vs. Megabytes It all starts with bits an
Keywords: internet mb megabits megabytes second
Find related items on AmazonPublished on: 2025-08-01 09:06:25
What does the "typical" exosolar system look like? We know it's not likely to look like our own Solar System, given that our familiar planets don't include entire classes of planets (Hot Jupiters! Mini-Neptunes!) that we've found elsewhere. And our discovery methods have been heavily biased toward planets that orbit close to their host star, so we don't really have a strong sense of what might be lurking in more distant orbits. A new study released on Thursday describes a search for what are ca
Keywords: distant orbits planet planets star
Find related items on AmazonPublished on: 2025-08-07 15:47:05
In 1960, Dr. Maxwell Maltz published his bestseller book “Psycho-Cybernetics” in which he defines happiness as a habit and claims that “it usually requires a minimum of about 21 days” to form a new habit. The 21 day idea caught on, because 3 weeks is neither too short (that it’s unbelievable), nor too long (that it’s discouraging). However, Dr. Maltz was simply making an observation as a plastic surgeon. He was not declaring a statement of fact that is based on research. Also, the phrase “it us
Keywords: 21 days habit habits new
Find related items on AmazonPublished on: 2025-08-08 09:00:00
Harnessing the power of qubits is notoriously tricky, though. For example, two of the most common types—superconducting qubits, which are often made of thin aluminum layers, and trapped-ion qubits, which use the energy levels of an ion’s electrons to represent 1s and 0s—must be kept at temperatures approaching absolute zero (–273 °C). Maintaining special refrigerators to keep them cool can be costly and difficult. And while researchers have made significant progress recently, both types of qubit
Keywords: freedman molecules quantum qubits sensor
Find related items on AmazonPublished on: 2025-08-08 11:47:05
In 1960, Dr. Maxwell Maltz published his bestseller book “Psycho-Cybernetics” in which he defines happiness as a habit and claims that “it usually requires a minimum of about 21 days” to form a new habit. The 21 day idea caught on, because 3 weeks is neither too short (that it’s unbelievable), nor too long (that it’s discouraging). However, Dr. Maltz was simply making an observation as a plastic surgeon. He was not declaring a statement of fact that is based on research. Also, the phrase “it us
Keywords: 21 days habit habits new
Find related items on AmazonPublished on: 2025-08-08 17:43:15
A hacking group dubbed 'Elusive Comet' targets cryptocurrency users in social engineering attacks that exploit Zoom's remote control feature to trick users into granting them access to their machines. Zoom's remote control feature allows meeting participants to take control of another participant's computer. According to cybersecurity firm Trail of Bits, which encountered this social engineering campaign, the perpetrators mirror techniques used by the Lazarus hacking group in the massive $1.5
Keywords: bits control remote trail zoom
Find related items on AmazonPublished on: 2025-08-14 17:13:51
Thank you, Bing Copilot (ChatGPT), for giving me another “thing I just learned” to blog about. In the early days of “K&R C”, things were quite a bit different. C was not nearly as portable as it is today. While the ANSI-C standard helped quite a bit, once it became a standard, there were still issues when moving C code from machines of different architectures — for example: int x; What is x? According to the C standard, and “int” is “at least 16 bits.” On my Radio Shack Color Computer, and in
Keywords: bit bits code define int
Find related items on AmazonPublished on: 2025-09-03 20:10:40
“In late May, I was sent across the ocean through an undersea cable to be delivered from the USA to India. It’s not like my life has much meaning, I exist as a bunch of bits, electronically defined and crafted, but physically, just a jitter of electric impulses. My developers certainly reminded me of that” “We just forgot about it” They are nameless. Oft disrespected. Ephemeral. Yet, our world would cease to exist without them. “I accepted the moniker 0000” the now bestselling author tells us
Keywords: bits just realtim scale server
Find related items on AmazonPublished on: 2025-09-05 21:00:54
Joe Maring / Android Authority Three weeks ago, I hatched a baby bird named Blueberry. And what a journey it’s been since. Blueberry has grown up into a toddler and discovered that they really like Baby Shark. They also love bread and corn (but aren’t a fan of cherries). Blueberry goes on daily adventures to learn more about the world and is accompanied by their friend Oakley — a baby kernel who wants to grow into a strong tree one day. At night, Blueberry returns home so they can rest up for t
Keywords: app bird day finch habits
Find related items on AmazonPublished on: 2025-09-13 13:10:00
ZDNET's key takeaways This high-quality screwdriver kit has everything for both the budding enthusiast and professional repairer. This 180-piece kit has 160 quality screwdriver bits and a range of other useful tools, such as plastic prybars, a suction cup, and tweezers. There's no LED light on the front of the screwdriver, so working in dark, cramped spaces can be tricky. $69.99 at Amazon As Amazon's Big Spring Sale winds down, the Jakemy 180-Piece Smart Cordless Screwdriver Kit is $20 off it
Keywords: bits kit screwdriver tools zdnet
Find related items on AmazonPublished on: 2025-09-15 04:40:07
They literally have auto-error correction in their world. Just think about it, Okabe disappears in one of the episodes, and everyone forgets about him. It’s almost like the world automatically corrects errors that shouldn’t be there, ensuring that nothing is out of order. Hamming Code I was watching this video for the first time about error-correcting algorithms. In this video, Hamming Code is discussed. Here’s a brief description of what Hamming code is, in my opinion: Hamming Code is a meth
Keywords: bits error errors gate hamming
Find related items on AmazonPublished on: 2025-09-22 16:53:00
ZDNET's key takeaways The Hoto 12-in-1 electric screwdriver is typically priced at $60 and comes with various DIY parts. This electric screwdriver has a fast 220 RPM motor, two buttons for screwing in and out for ease of use, three torque settings for different tasks, a circular LED shadowless lamp for better visibility, and includes 12 S2 tool steel bits. While durable and reliable, the Hoto 12-in-1 electric screwdriver lacks a super-gentle setting for delicate tasks, making it too powerful f
Keywords: bits electric hoto screwdriver torque
Find related items on AmazonPublished on: 2025-09-22 20:03:00
ZDNET's key takeaways The Hoto 12-in-1 electric screwdriver is typically priced at $60 and comes with various DIY parts. This electric screwdriver has a fast 220 RPM motor, two buttons for screwing in and out for ease of use, three torque settings for different tasks, a circular LED shadowless lamp for better visibility, and includes 12 S2 tool steel bits. While durable and reliable, the Hoto 12-in-1 electric screwdriver lacks a super-gentle setting for delicate tasks, making it too powerful f
Keywords: bits electric hoto screwdriver torque
Find related items on AmazonPublished on: 2025-09-27 00:30:00
On March 18th, Chetan Nayak, a physicist leading Microsoft’s quantum team, presented new data on the company’s quantum computing chip at the American Physical Society’s Global Physics Summit in Anaheim, California. It was meant to calm a raging debate among physicists, but researchers remain skeptical of the results. “I never felt like there would be one moment when everyone is fully convinced,” Nayak told Nature in a March 18th article. The controversy centers on Microsoft’s February claim tha
Keywords: computers computing microsoft quantum qubits
Find related items on AmazonPublished on: 2025-10-01 11:31:13
Intel’s foray into high performance graphics has enjoyed impressive progress over the past few years, and the company is not letting up on the gas. Tom Peterson from Intel has indicated that Xe3 hardware design is complete, and software work is underway. Some of that software work is visible across several different open source repositories, offering a preview of what’s to come. GPU Organization: Larger Render Slices? Modern GPUs are built from a hierarchy of subdivision levels, letting them s
Keywords: bits intel stoc thread xe3
Find related items on AmazonPublished on: 2025-10-02 00:29:00
ZDNET's key takeaways This high-quality screwdriver kit has everything for both the budding enthusiast and professional repairer. This 180-piece kit has 160 quality screwdriver bits and a range of other useful tools, such as plastic prybars, a suction cup, and tweezers. There's no LED light on the front of the screwdriver, so working in dark, cramped spaces can be tricky. View now at Amazon I often get asked about tools, and I genuinely enjoy these conversations because I'm a tool enthusiast!
Keywords: bits kit screwdriver tools zdnet
Find related items on AmazonPublished on: 2025-10-02 12:16:00
ZDNET's key takeaways This high-quality screwdriver kit has everything for both the budding enthusiast and professional repairer. This 180-piece kit has 160 quality screwdriver bits and a range of other useful tools, such as plastic prybars, a suction cup, and tweezers. There's no LED light on the front of the screwdriver, so working in dark, cramped spaces can be tricky. View now at Amazon I often get asked about tools, and I genuinely enjoy these conversations because I'm a tool enthusiast!
Keywords: bits kit screwdriver tools zdnet
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