Input is more varied and challenging than output. In this extract from a new book on using GPIO Zero on the Pi in Python we look at its variety.

Hexadecimal is the most common way of displaying the raw data sitting in a machine's memory, but if you are not familiar with it you might ask "What the hex..?"

A new study throws a lot of light on a mysterious subject - what apps are removed from the iOS App Store? The first big surprise is how many apps were removed. Guess how many were removed in the recent 1.5 years? Go on guess!

Operational software failures, poor quality legacy systems, and unsuccessful IT projects cost the United States
$2.08 trillion last year, which is 10% of the country's GDP.

A PhD-level course, originally provided remotely to Cornell Computer Science students, has now been made available for free to anyone in a self-paced version.

Wing Python has been updated with improvements to code reformatting, better handling of def async statements, and usability improvements to tooltips.

This year's IEEE Medal of Honor has been awarded to Jacob Ziv, who, with  Abraham Lempel, created two lossless compression methods (LZ-77 and LZ-78) which are the basis of a wide range of compressed file types including ZIP and GIF/PNG files.

Tokio, an asynchronous runtime for the Rust programming language, has been released in a 1.0 version. Tokio can be used to write reliable networking applications without compromising speed.

Here's another example of the use of AI for colorizing and breathing new life into photos, or rather in this case early film footage. This one goes an extra step - adding sound effects. Does this treatment bring the past alive for us in an authentic way or introduce a false reality?

In yet another confirmation of its popularity and worth, PostgreSQL has taken the annual accolade awarded by DB-Engines.

The developers at RStudio have announced a number of improvements designed to make it easier to use R and Python together in a single data science project, including more options for native Python coding in the RStudio IDE.

BlocklySQL is a block-based, visual programming tool like Scratch but for SQL. It is the outcome of academic research at the University of Würzburg on the kind of errors that students who are novice in writing SQL queries make.

There's a new release of the D programming language with better Objective-C support, as well as improvements to the compiler, libraries, and tools.