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The Original Macintosh: Calculator Construction Set

The Original Macintosh: 35 of 125 Calculator Construction Set Author: Andy Hertzfeld Date: February 1982 Characters: Chris Espinosa, Steve Jobs, Donn Denman Topics: Software Design Summary: Chris tries to make a Steve-approved calculator The Calculator Chris Espinosa was one of Apple's earliest and youngest employees, who started work for the company at the ripe age of 14. He left Apple in 1978 to go to college at UC Berkeley, but he continued to do freelance work during the school year, like wr

The amazing XGIMI Horizon Pro 4K projector is at a record-low price!

There are plenty of great portable projectors around these days, and prices are getting more accessible than ever. While those work great, we know many of you are much more demanding viewers. High-end projectors can get really pricey, but here’s an option for those who want the ultimate TV replacement at a more reasonable price. The XGIMI Horizon Pro 4K is at a record-low price, saving you over $900! Buy the XGIMI Horizon Pro 4K for just $769.99 ($929.01 off) This offer is available from Woot!,

The best 15-inch laptops of 2025: Expert tested and reviewed

'ZDNET Recommends': What exactly does it mean? ZDNET's recommendations are based on many hours of testing, research, and comparison shopping. We gather data from the best available sources, including vendor and retailer listings as well as other relevant and independent reviews sites. And we pore over customer reviews to find out what matters to real people who already own and use the products and services we’re assessing. When you click through from our site to a retailer and buy a product or

Normalizing Flows Are Capable Generative Models

Normalizing Flows (NFs) are likelihood-based models for continuous inputs. They have demonstrated promising results on both density estimation and generative modeling tasks, but have received relatively little attention in recent years. In this work, we demonstrate that NFs are more powerful than previously believed. We present TarFlow: a simple and scalable architecture that enables highly performant NF models. TarFlow can be thought of as a Transformer-based variant of Masked Autoregressive Fl

Facing Billions in DMA Fines, Apple Lets EU iPhone Users Install Apps Outside the App Store

In a scramble to sidestep penalties that could soar into the billions, and with Brussels regulators watching closely, Apple has agreed to let Europeans download iPhone apps from outside its own App Store. With just hours left before an EU compliance deadline, the company said residents of the 27-nation bloc will soon be able to grab apps from rival marketplaces or straight off a developer's website. The change rolls out later this year with iOS 18.6 and iPadOS 18.6, and also lets users set a di

Topics: app apple eu store tier

Only 2 exhibitor tables up for grabs at TechCrunch All Stage — claim by June 29

This is not a drill. If your startup exists to power the growth of other startups or is the kind of innovation tech leaders need to see firsthand, your moment is now. TechCrunch All Stage hits Boston’s SoWa Power Station on July 15 — and just 2 exhibitor tables remain. Yes, only two, and only until June 29. Tables for TC All Stage have been flying, and this is truly your last chance to claim your place in front of founders and investors across all stages. Ways that exhibiting amplifies your br

Best July 4th TV deals 2025: My favorite early sales save you up to $2,800

'ZDNET Recommends': What exactly does it mean? ZDNET's recommendations are based on many hours of testing, research, and comparison shopping. We gather data from the best available sources, including vendor and retailer listings as well as other relevant and independent reviews sites. And we pore over customer reviews to find out what matters to real people who already own and use the products and services we’re assessing. When you click through from our site to a retailer and buy a product or

The best iPhone 15 screen protectors of 2025: Expert tested

'ZDNET Recommends': What exactly does it mean? ZDNET's recommendations are based on many hours of testing, research, and comparison shopping. We gather data from the best available sources, including vendor and retailer listings as well as other relevant and independent reviews sites. And we pore over customer reviews to find out what matters to real people who already own and use the products and services we’re assessing. When you click through from our site to a retailer and buy a product or

Scattered Spider hackers shift focus to aviation, transportation firms

Hackers associated with "Scattered Spider" tactics have expanded their targeting to the aviation and transportation industries after previously attacking insurance and retail sectors These threat actors have employed a sector-by-sector approach, initially targeting retail companies, such as M&S and Co-op, in the United Kingdom and the United States and subsequently shifting their focus to insurance companies. While the threat actors were not officially named as responsible for insurance sector

Congress might block state AI laws for a decade. Here’s what it means.

A federal proposal that would ban states and local governments from regulating AI for 10 years could soon be signed into law, as Sen. Ted Cruz (R-TX) and other lawmakers work to secure its inclusion into a GOP megabill ahead of a key July 4 deadline. Those in favor – including OpenAI’s Sam Altman, Anduril’s Palmer Luckey, and a16z’s Marc Andreessen – argue that a “patchwork” of AI regulation among states would stifle American innovation at a time when the race to beat China is heating up. Crit

NASA Is in Full Meltdown

Career NASA officials were seen looking mighty freaked out during a recent town hall event about the agency's dicey future. As Ars Technica's Stephen Clark reports based on a livestream of the town hall — which was not advertised and has since been taken down — acting NASA administrator and career agency official Janet Petro looked like a hostage as she answered questions from staff about the agency's dire standing under president Donald Trump. The hostage-taker in this scenario appears to be

Best Buy Has a 4.7-Star LG Monitor for Almost Free, Now Nearly 50% Off for 4th of July

Prime Day is still a couple weeks away. It’s an excellent time of the year to stock up on some new accessories, especially tech like computer mice, keyboards, and monitors. Though you don’t have to wait for mid July to start saving. Some retailers are trying to get ahead of Amazon are are showcasing some great opportunities to save on their products right now. For instance, Best Buy has this LG monitor for $98 off. It’s normally just shy of $200, so now, it’s just shy of $100—coming in at the li

The first mobile phone, the Motorola DynaTAC debuted in 1983. What was its price?

Choose wisely! The correct answer, the explanation, and an intriguing story await. Correct Answer: $3,995 The Motorola DynaTAC 8000X, released in 1983, was a groundbreaking innovation in the history of telecommunications. It was the first commercially available handheld mobile phone, launching a new era in personal communication. At its debut, the DynaTAC was priced at $3,995 – equivalent to more than $12,500 in 2025 dollars when adjusted for inflation--the DynaTAC was a luxury item accessible

Whitesmiths C compiler: One of the earliest commercial C compilers available

Whitesmiths, Ltd. C Compiler Background The original Whitesmiths compiler was released in 1978 and compiled a version of C similar to that accepted by Version 6 Unix. It was an entirely new implementation, borrowing no code from Unix. When Whitesmiths released version 3.0 of its C compiler in 1985 it supported the emerging ANSI C standard. The Whitesmiths compiler had code generators for DEC PDP-11, Intel 8080/Zilog Z80, Intel 8086, Motorola MC68000, DEC VAX-11, IBM System/370 and IBM System

Space Elevators Could Totally Work—if Earth Days Were Much Shorter

Suppose you could speed up Earth’s rotation so that a day was only half as long? What would happen? Well, for starters we’d have to make new clocks that only have hours 1 to 6 for am and pm. If you had tickets to an 8 o’clock concert, you’d be out of luck: 8 o’clock no longer exists. But maybe a more germane question is, why do physicists ask nutty questions like this? It’s never going to happen—just move on, right? Well, here’s the deal. Thinking about counterfactual scenarios gives us insight

Best Prime Day Apple deals: My 15 favorite sales live now

'ZDNET Recommends': What exactly does it mean? ZDNET's recommendations are based on many hours of testing, research, and comparison shopping. We gather data from the best available sources, including vendor and retailer listings as well as other relevant and independent reviews sites. And we pore over customer reviews to find out what matters to real people who already own and use the products and services we’re assessing. When you click through from our site to a retailer and buy a product or

This power bank changed my mind about 'useless' kickstands - here's why

'ZDNET Recommends': What exactly does it mean? ZDNET's recommendations are based on many hours of testing, research, and comparison shopping. We gather data from the best available sources, including vendor and retailer listings as well as other relevant and independent reviews sites. And we pore over customer reviews to find out what matters to real people who already own and use the products and services we’re assessing. When you click through from our site to a retailer and buy a product or

Save money on your groceries with Amazon Prime - here's how

'ZDNET Recommends': What exactly does it mean? ZDNET's recommendations are based on many hours of testing, research, and comparison shopping. We gather data from the best available sources, including vendor and retailer listings as well as other relevant and independent reviews sites. And we pore over customer reviews to find out what matters to real people who already own and use the products and services we’re assessing. When you click through from our site to a retailer and buy a product or

The best free CRM software of 2025: Expert tested

'ZDNET Recommends': What exactly does it mean? ZDNET's recommendations are based on many hours of testing, research, and comparison shopping. We gather data from the best available sources, including vendor and retailer listings as well as other relevant and independent reviews sites. And we pore over customer reviews to find out what matters to real people who already own and use the products and services we’re assessing. When you click through from our site to a retailer and buy a product or

Space Elevators Could Totally Work—If Earth Days Were Much Shorter

Suppose you could speed up Earth’s rotation so that a day was only half as long? What would happen? Well, for starters we’d have to make new clocks that only have hours 1 to 6 for am and pm. If you had tickets to an 8 o’clock concert, you’d be out of luck: 8 o’clock no longer exists. But maybe a more germane question is, why do physicists ask nutty questions like this? It’s never going to happen—just move on, right? Well, here’s the deal. Thinking about counterfactual scenarios gives us insight

Graphic artists in China push back on AI and its averaging effect

Sendi Jia, a designer running her own studio between Beijing, China, and London, England, says she mainly uses AI generators like DALL-E to make fake photos for background panels or websites when her clients don’t have access to real ones. That’s helped clients with limited budgets, but it’s also exposed just how much of the creative process AI can replace. Recently, a potential client working in a university contacted Jia about creating the logo for a new project. Then, they changed their mind.

The top 4 Bluetooth speakers I'm taking everywhere this summer (including a surprise pick)

'ZDNET Recommends': What exactly does it mean? ZDNET's recommendations are based on many hours of testing, research, and comparison shopping. We gather data from the best available sources, including vendor and retailer listings as well as other relevant and independent reviews sites. And we pore over customer reviews to find out what matters to real people who already own and use the products and services we’re assessing. When you click through from our site to a retailer and buy a product or

The best external hard drives of 2025: Expert tested

'ZDNET Recommends': What exactly does it mean? ZDNET's recommendations are based on many hours of testing, research, and comparison shopping. We gather data from the best available sources, including vendor and retailer listings as well as other relevant and independent reviews sites. And we pore over customer reviews to find out what matters to real people who already own and use the products and services we’re assessing. When you click through from our site to a retailer and buy a product or

10 useful gadgets ZDNET readers are buying the most this year (including my pocket picks)

'ZDNET Recommends': What exactly does it mean? ZDNET's recommendations are based on many hours of testing, research, and comparison shopping. We gather data from the best available sources, including vendor and retailer listings as well as other relevant and independent reviews sites. And we pore over customer reviews to find out what matters to real people who already own and use the products and services we’re assessing. When you click through from our site to a retailer and buy a product or

Apple Will Transition from the CTF to the CTC for EU Businesses

The European Commission has required Apple to make a series of additional changes under the Digital Markets Act: Communication and promotion of offers Today, we’re introducing updated terms that let developers with apps in the European Union storefronts of the App Store communicate and promote offers for purchase of digital goods or services available at a destination of their choice. The destination can be a website, alternative app marketplace, or another app, and can be accessed outside the

This 15″ Travel Monitor Is Nearly Free, Amazon Clears Out Its Stock With an Early Prime Day Deal

Portable monitors have quickly become a necessity for anyone who wishes to have an extra screen on the go, and now they’re one of the best-selling items in the Electronics section on Amazon. If you’ve ever shelled out cash for a 15-inch 1080p portable monitor, you’ll be well aware that the price usually ranges between $60 and $150, with the $60 price mark usually being set for the biggest sale days such as Black Friday or Prime Day. But Amazon has just released a deal that’s hard to swallow: th

My favorite $12 gadget has become a permanent accessory on my keychain - here's why

'ZDNET Recommends': What exactly does it mean? ZDNET's recommendations are based on many hours of testing, research, and comparison shopping. We gather data from the best available sources, including vendor and retailer listings as well as other relevant and independent reviews sites. And we pore over customer reviews to find out what matters to real people who already own and use the products and services we’re assessing. When you click through from our site to a retailer and buy a product or

Show HN: Sink – Sync any directory with any device on your local network

sink sync any directory with 2 windows machines over your local network. no emailing yourself stuff. no cloud. no flash drives. no bs. note: this is still a veeery big wip, as there are many features that I have planned to added; you can see this on the bottom of this readme. i built this to solve a specific problem: syncing files on a locked-down school laptop where python was one of the only things i was allowed to run. features automatically finds other computers running sink on you

Starcloud can’t put a data centre in space at $8.2M in one Starship

Abstract Starcloud have claimed that a single 100-ton Starship launch could suffice to create a 40 MW space data centre (SDC) for $8.2 M. My analysis finds that this is infeasible in a single launch but requires a total of upto 22 launches. The SDC’s solar arrays require 4 launches determined by examining existing solar arrays on the ISS. Similarly, the ISS’s radiator benchmarks indicate that 13 launches would be needed for the SDC’s thermal management system. The server racks would require an

Fault Tolerant Llama training – PyTorch blog

Collaborators: Less Wright, Howard Huang, Chien-Chin Huang, Crusoe: Martin Cala, Ethan Petersen tl;dr: we used torchft and torchtitan to train a model in a real-world environment with extreme synthetic failure rates to prove reliability and correctness of fault tolerant training Training loss across 1200 failures with no checkpoints. NOTE: Each small spike is a non-participating worker recovering which affects the metrics but not the model Introduction We want to demonstrate torchft in wo