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I am studying Apache Kafka (a "distributed streaming platform") and I stumbled upon this conclusion: the "disk read fear" a lot of projects have in the past, is a fake.

A lot of distributed database started tutorial with the statement "disk read are slow, write are fast" which is true to some extent, and accounted for de-normalizing data and memory caches.

Paleotronic’s 12 Years of Retro-Christmas Year One: 1980 - Paleotronic Magazine A sticky post for Dicember 2018

Collapsible widgets are a popular way to create sections of content that can contract and expand. There are a ton of different implementations out there. Here, thanks to checkbox input elements, label elements and the :checked pseudo-selector, we’ll be able create such widget without the need for extra JavaScript.

On this Christmas, a lot of us will pay more then $1000 for a new iPhone XY or for a similar Samsung one (twice the price of a netbook) and you will have in your hand a quite powerful machine: for instance iPhone used as Theorem Prover is faster then an Intel Workstation (!)

In the 1980, privacy was a lot easier to acquire. Banks can harvest information on us, but the limited computer power was a big limiting factor to their analyzing dreams. 

For years Banks have computed the best credit options (for them) to sell to customers. Now the problem is on privacy. Google Plex can crunch a lot of data in a snap, Facebook sells our advertising target profile, and a lot of other companies can predict our ability to pay a loan or our future health for insurance reasons.

We are happy to announce a Solar-powered search engine on our web site. The search is integrated with the site, so click on the right upper icon to open the search box, type your words and the search will be far more relevant.

Sembra che il governo a trazione "Legista Stellare" voglia farsi buttare fuori dall'Europa.

Show come la scarpata di Ciocca oppure sperare che la Russia ci paghi il debito, sono goffi tentativi di nascondere una incompetenza notevole, che peraltro traspare da pasticci multipli, manine e altro.

The ZilogZ80 CPU is an 8-bit based microprocessor. It was introduced by Zilog in 1976 as the startup company's first product. The Z80 was conceived by Federico Faggin in late 1974. The Z80 was software compatible (!) with the Intel 8080 machine language. It added several extensions and was the heart of the ZX Spectrum.

We moved gioorgi.com to WebFaction on 15 Jul 2011. WebFaction served us well but with somewhat suboptimal performance. Uptime was never very good, and perfromance suffered from a very slow servers. We have plenty of disk space but little ram (512Mb) to play with.

For a complete description see https://www.codeproject.com/Articles/33052/Visual-Representation-of-SQL-Joins

The Sqlite Oracle Compatibility Functions is an experimental compatibility layer for SQLite vs Oracle, written in Python 3.

It aims to provide a minimal compatibility with Oracle. The need was having some regular expression functions, and I do not like to work with risky C code, like this university project did

A very useful friend to make a elisp function starting from your….last command

C-x ESC ESC (translated from C-x <escape> <escape>) runs the command repeat-complex-command (found in global-map), which is an interactive compiled Lisp function in ‘simple.el’.

It is bound to <again>, <redo>, C-x M-:, C-x M-ESC.

(repeat-complex-command ARG)

Edit and re-evaluate last complex command, or ARGth from last. A complex command is one which used the minibuffer. The command is placed in the minibuffer as a Lisp form for editing. The result is executed, repeating the command as changed. If the command has been changed or is not the most recent previous command it is added to the front of the command history. You can use the minibuffer history commands M-n and M-p to get different commands to edit and resubmit.