If you haven't been living under a rock, you will have heard that the United Kingdom is going to leave the European Union. This will likely have consequences for the Silicon Roundabout, since it relies very much on skilled developers from the rest of Europe. On the other hand, both Berlin and Paris …
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…
I generate random passwords of 24 characters chosen from a wide variety when registering to sites. I then use a password manager to remember the password, because of course it would be impossible to remember these.
This allows me to browse with a little more security, and it also has the intended s…
In the first installment of "A computer from scratch", I've built a NAND gate. In the third part I've built NOT, AND and OR circuits and I've also introduced the 4011 CMOS NAND gates, which I'm using instead of a bunch hand built, transistor-based NANDs (because hey, that's a lot of wiring, but not …
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…
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…
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…
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…
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…
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…
Hi, I'm Marco Cecconi. I am the founder of Intelligent Hack, developer, hacker, blogger, conference lecturer. Bio: ex Stack Overflow core team, ex Toptal EM.
After years of building, our top-notch consultancy to help start-ups and scale-ups create great, scalable products, I think it is high time I added an update to how it is going and what's next for us.