Byte-code compilation is an underdocumented — and in the case of the recent lexical binding updates, undocumented — part of Emacs. Most users know that Elisp is usually compiled into a byte-code saved to .elc files, and that byte-code loads and runs faster than uncompiled Elisp. That’s all users really need to know…
The C standard library includes a qsort() function for sorting arbitrary buffers given a comparator function. The name comes from its original Unix implementation, “quicker sort,” a variation of the well-known quicksort algorithm. The C standard doesn’t specify an algorithm, except to say that it may be unstable (C99…
I’m writing a book on security in the highly connected Internet-of-Things world. Tentative title: Click Here to Kill Everybody Peril and Promise in a Hyper-Connected World There are two underlying metaphors in the book. The first is what I have called the World-Sized Web, which is that combination of mobile, cloud…
Security protocols often assume an accurate, local clock (e.g. TLS, Kerberos, DNSSEC and more). It's a widely accepted assumption when designing protocols but, for a lot of people, it just isn't true. We find good evidence that at least 25% of all certificate errors in Chrome are due to a bad local clock.
EFF and over a dozen other organizations are urging U.S. lawmakers to oppose a dangerous bill proposed by Sens. Sheldon Whitehouse and Lindsey Graham that would make the already-flawed Computer Fraud and Abuse Act (CFAA) worse. The joint letter sent Wednesday explains that the legislation fails to...
Distributed Denial of Service (DDoS) attempts to make a machine or network unavailable by flooding it with overwhelming amounts of traffic.
It's not about technology for its own sake. It's about being able to implement your ideas.
In recent months, privacy and civil rights activists have increasingly recommended the use of Signal [1] , an instant messenger app developed by Open Whisper Systems (OWS). After Donald Trump’s victory in the US presidential election in particular, many tweets recommended using hard disk encryption and the ostensibly…
Innovation never takes a break, and neither do I. From the steaming hot beaches of Cabo San Lucas I would like to tell you about the Amazon Elastic Compute Cloud, or Amazon EC2, now open for limited beta testing, with more beta slots to open soon. Amazon EC2 gives you access to a virtual computing […]
You’ve probably heard that story about NPM community and LeftPad package, that broke thousands JavaScript projects worldwide. There was a nice follow-up article titled “Have We Forget How To Program” and one guy even created left-pad.io - Left-Pad As A Service web service. People got a lot of fun discussing this story.
Every year, Larry and Sergey write a Founders' Letter with some of our recent highlights. This year, Sundar reflects on his vision for Google.
When you play Chess, there are on average something like 30 different moves you can make each turn. In other words, the branching factor is ...
Given how important chips are to modern society EVERYONE should understand and appreciate how they are made. Every field has its own set of terms, jargon, and acronyms (engineers love acronyms!). As you would expect, chip design is no different. If you are new to chip design, it might take you a few days to read…
OK9 là nền tảng giải trí và cá cược trực tuyến với hệ thống sản phẩm đa dạng, bao gồm thể thao, live casino, slot game, bắn cá, xổ số và game bài.
Reconstructing films with artificial neural networks
A team of Yale researchers has unveiled CertiKOS, the world’s first operating system that runs on multi-core processors and shields against cyber attacks.
I enjoy breaking websites.
Read more on Y Combinator's blog.
No single cloud fits all. Explore how we build a more flexible future with hybrid cloud.
I was at SCNA the other day, and someone approached me about TDD and Dijkstra’s algorithm. He wondered if you could find a sequence of tests that would lead you to the algorithm. This sounded like a fun little exercise, so I decided to give it a try here.
Visit the post for more.
Last week, a blog post by an Uber engineer explained why Uber chose to move from PostgreSQL to MySQL . This article was widely reported and...
I recently had to set up a new postgres instance at work. While we’re already using Heroku Postgres for production loads, we had some requirements for this one that couldn’t be solved without being database admin, and thus had to go self-hosted. That...
