Link rot

Link rot (or linkrot) is the process by which links on a website gradually become irrelevant or broken as time goes on, because websites that they link to disappear, change their content or redirect to new locations.

The phrase also describes the effects of failing to update web pages so that they become out-of-date, containing information that is old and useless, and that clutters up search engine results.

Detecting link rot for a given URL is difficult using automated methods. If a URL is accessed and returns back an HTTP 200 (OK) response, it may be considered accessible, but the contents of the page may have changed and may no longer be relevant. Some web servers also return a soft 404, a page returned with a 200 (OK) response (instead of a 404) that indicates the URL is no longer accessible. Bar-Yossef et al. (2004) developed a heuristic for automatically discovering soft 404s.

C (programming language)

In computing, C is a general-purpose computer programming language originally developed in 1972 by Dennis Ritchie at the Bell Telephone Laboratories to implement the Unix operating system.Although C was designed for writing architecturally independent system software,it is also widely used for developing application software.

Worldwide, C is the first or second most popular language in terms of number of developer positions or publicly available code. It is widely used on many different software platforms, and there are few computer architectures for which a C compiler does not exist. C has greatly influenced many other popular programming languages, most notably C++, which originally began as an extension to C, and Java and C# which borrow C lexical conventions and ope.

NeXTdimension

NeXTdimension (ND) was an accelerated 32 bit color board manufactured and sold by NeXT from 1990 that gave the NeXTcube color capabilities with PostScript. The NuBus card was a full size card for the NeXTcube, filling one of four slots, another one being filled with the main board itself. The NeXTdimension featured S-Video input and output, RGB output, an Intel i860 64 bit RISC processor at 33MHz for Postscript acceleration, 8-32MB RAM main memory and 4MB VRAM for a resolution of 1120*832 at 24 bit color plus 8 bit alpha channel. An onboard C-Cube CL550 chip for MJPEG video compression was announced, but never shipped. A handful of engineering prototypes for the MJPEG daughterboard exist, but none actually function.

A stripped down Mach kernel was used as the operating system for the card. Due to the supporting processor 32 bit color Display PostScript on the NeXTdimension was faster than 2 bit grayscale Display PostScript on the NeXTcube. Since the main board always included the grayscale video logic, adding a NeXTdimension allowed the simultaneous use of two monitors. List price for a NeXTdimension sold as an add-on to the NeXTcube was $US 3,995.

Netscape Navigator

Netscape Navigator and Netscape are the names for the proprietary web browser popular in the 1990s, and the flagship product of the Netscape Communications Corporation, and the dominant web browser in terms of usage share. Yet by 2002 its users had almost disappeared, partly because of Microsoft's bundling (inclusion) of its Internet Explorer web browser software with the Windows operating system software (both Microsoft products), and partly because Netscape corporation did not sustain Netscape Navigator's technical innovation after the late 1990s.

The business demise of Netscape was a central premise of Microsoft's antitrust trial, wherein, the Court ruled that Microsoft corporation's bundling of Internet Explorer with the Windows operating system was monopolistic, an illegal business practice.