Announcing z80, my Zilog z80 emulator

Aug 13, 2015 • Marco Cecconi

The Zilog Z80 is an 8-bit microprocessor designed by Zilog and sold from July 1976 onwards. It was widely used both in desktop and embedded computer designs as well as for military purposes. The Z80 and its derivatives and clones made up one of the most commonly used CPU families of all time, and, a…

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A computer from scratch - Fish and chips

Aug 10, 2015 • Marco Cecconi

In the first installment of "A computer from scratch", I've built a NAND gate. I've also introduced the my "scaling" rule: if I build something, I can buy it pre-made, because I only have one lifetime to spend on this :-) Therefore. I've bought a bunch of 4011 CMOS NAND gates, here they are: And…

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Data Structures for Andela: Iterators (part 1)

Aug 05, 2015 • Marco Cecconi

As part of Stack Overflow's pro-diversity initiatives, I have been helping Andela by mentoring one of their fellows, Bosun, in data structures and algorithms. In the Stack Overflow "default open" style, I am putting some of our notes on the internet, in the hope they will be useful to more people. M…

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The one mistake that ultimately destroys modern companies

Jul 31, 2015 • Marco Cecconi

Openly inspired by a nice talk by Joel Spolsky London, 1850. Let's say you are the owner of a factory that produces nails and bolts. Workers use huge, expensive machinery in a large factory. Machinery is so expensive you needed a lot of money to buy it, so it's paramount to use it as much as poss…

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A computer from scratch - NANDing all the way

Jul 26, 2015 • Marco Cecconi

A technical side note to my first "A computer from scratch" post and In preparation for the next step, I've examined whether it's possible to build any gate from NANDs. Is it possible? YES! Let's prove it, mathematically. Theorem Any truth table can be built by combining NANDs. Lemma 1 Any t…

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A computer from scratch - Eating at NANDos

Jul 20, 2015 • Marco Cecconi

I am attempting to build a computer from prime principles. Am I crazy? Probably. But I have a plan. Let's start from the beginning Why, oh why? Because not knowing how stuff works bugs me to no end. It's not enough for me to use a programming language. In the past I dabbled and spent more than …

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My talks this year

Jun 24, 2015 • Marco Cecconi

There are three conferences I'll be speaking at this year. I'm seriously trying to do as few conferences as possible, but I really wanted to speak at these. If you'd like to chat about code and development, drink a beer or eat a pizza: I'm game. Here's the amazing 3: jDay my bio page JDay is one…

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Agile development and pluralistic management: why Scrum fails

Jun 19, 2015 • Marco Cecconi

The Scrum methodology is often introduced because developers want it. On paper, it empowers them—if applied correctly—and developers need decision-making empowerment because development is a creative endeavor. Of all the different types of people I've known, hackers and painters are among the m…

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Stack Overflow: answer sources by the numbers

Mar 09, 2015 • Marco Cecconi

I spent the past few weeks taking an in-depth look at how our users find questions to answer, with a keen eye on Stack Overflow. I measured user behavior and click streams and discussed with the other Stack Overflow developers and community managers how they meant the navigation and questiion list p…

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Make your job ads 23% better with these 5 weird tricks (and one awesome tool)

Mar 07, 2015 • Marco Cecconi

Stack Overflow Careers is how the company I work for makes money, pays salaries and sustains great communities like Stack Overflow. You see, Stack Overflow is, by far, the best community of developers on the internet, and Careers is our effort to improve their lives by finding them a better job. I…

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A software engineer & Stack Overflow alumnus in London. I write about software development, coding, architecture and team leadership. I also speak at conferences worldwide.

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hackurls - news for hackers and programmers
Claudio Santini • Mar 27, 2017

$ wget -O - | less

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