The original proposal for the World Wide Web, written by Tim Berners-Lee in 1989, is an important piece of internet history. It also can't be opened on modern computers. John Graham-Cumming, a British ...

Time Machine is an archive rather than a backup, because it retains multiple versions of files as you change them. That’s useful, because if you’re editing an image, a word-processing file, or another ...

A Java Archive, or JAR file, contains all of the various components that make up a self-contained, executable Java application, deployable Java applet or, most commonly, a Java library to which any ...

A HAR file is a JSON archive file format that stores browsing data across multiple browsers. It works by storing a data session between the client and server. In other words, a HAR file is used to ...