If a newer software version cannot save files that can be read by the older version, it is not backward compatible with the older version, although it may provide an irreversible upgrade capability for the old files.

Mainframe and minicomputer manufacturers of the time launched proprietary IC development programs to upgrade their older computer architectures, and eventually produced instruction set compatible microprocessors that were backward-compatible with their older hardware and software.

This allowed customers to run their existing LINC programs, or " upgrade " to the PDP-8, all in software.

IBM had difficulty getting customers to upgrade from the smaller machines to the mainframes because so much software had to be rewritten.

Many 386 upgrade kits were advertised as being simple drop-in replacements, but often required complicated software to control the cache and / or clock doubling.

The Freescale 68HC16 microcontroller is intended as a 16-bit mostly software compatible upgrade of the 68HC11.

This feat allowed customers to use a cheaper model and then upgrade to larger systems as their needs increased without the time and expense of rewriting software.

This can happen because of required or urgent maintenance or upgrade, hardware or software failures, back-end ( e. g., database ) failures, etc.

The community college district is currently undergoing a major system upgrade using SAP enterprise software.

When a user interacts with the package management software to bring about an upgrade, it is customary to present the user with the list of things to be done ( usually the list of packages to be upgraded, and possibly giving the old and new version numbers ), and allow the user to either accept the upgrade in bulk, or select individual packages for upgrades.

Many package management systems can be configured to never upgrade certain packages, or to upgrade them only when critical vulnerabilities or instabilities are found in the previous version, as defined by the packager of the software.

One typical difference between package management in proprietary operating systems, such as Mac OS X and Windows, and those in free and open source software, such as Linux, is that free and open source software systems permit third-party packages to also be installed and upgraded through the same mechanism, whereas the package management systems of Mac OS X and Windows will only upgrade software provided by Apple and Microsoft, respectively ( with the exception of some third party drivers in Windows ).

The ability to continuously upgrade third party software is typically added by adding the URL of the corresponding repository to the package management's configuration file.

Others make or install new software or upgrade computer systems.

The Acorn ACA56 Acorn PC card upgrade, showing the user guide, software disc and card itself

First released as a public beta under the name Pike in March 2000 , the software came to be released in synch with Manila version numbering: the initial release of 2001 was named Radio UserLand 7. 0  and its only major upgrade in 2002 Radio UserLand 8. 0 . The software is no longer considered to be under active development .

Thus, Gentoo users may upgrade to the latest version of all of their installed software the day that new versions are released and have an ebuild available.

# As the market leaders Intel and / or AMD would extend the core x86 instruction set, Transmeta could quickly upgrade their product with a software upgrade rather than requiring a respin of their hardware.

The Associated Press reported in mid-January 2005 that the FBI essentially abandoned the use of Carnivore in 2001, in favor of commercially available software, such as NarusInsight.

Category: 2001 software

In July 2001, Epic Games announced that its upcoming game Unreal Tournament 2003 would include Matinee, a machinima production software utility.

* Antitrust ( film ) ( 2001 ) about " NURV ", a large software company that presents a fictionalized Microsoft, according to many reviewers

Around 2001, Stethographics introduced PC-based software which enabled a phonocardiograph, graphic representation of cardiologic and pulmonologic sounds to be generated, and interpreted according to related algorithms.

European Union Directives which largely cover the subject matter of the treaty are: Directive 91 / 250 / EC creating copyright protection for software, Directive 96 / 9 / EC on copyright protection for databases and Directive 2001 / 29 / EC prohibiting devices for circumventing " technical protection measures " such as digital rights management.

Category: 2001 software

Other products failed or had limited success — a Psion Siemens ' GSM device, a Series 5 based STB, the Wavefinder DAB radio, an attempt to add Dragon's speech recognition software to a PDA, Ericsson cancelled a Series 5MX derived smartphone project in 2001.

Co-founder Mike Magee left the company amid some controversy after posting criticism of The Register management, complaining that The Register had become a " vehicle of software ", on 23 August 2001.

Most software products are not released on time, according to researchers who studied the causes and effects of vaporware in 2001.

Category: 2001 software

Category: 2001 software

At Super Bowl XXXV in January 2001, police in Tampa Bay, Florida, used Identix ’ s facial recognition software, FaceIt, to scan the crowd for potential criminals and terrorists in attendance at the event.

Since 2001, the Canadian Engineering Accreditation Board has accredited several university programs in software engineering, allowing graduates to apply for a professional engineering licence once the other prerequisites are obtained, although this does nothing to help IT professionals using the title with degrees in other fields ( such as computer science ).

* The SCO Group, a software company formerly called Caldera International between 2001 and 2002 and Caldera Systems between 1998 and 2001

Faced with these difficulties in 29 January, 2001, Hasbro sold 100 % of Hasbro Interactive to French software concern Infogrames.

On July 16, 2001, Russian programmer Dmitry Sklyarov was arrested the day after DEF CON for writing software to decrypt Adobe's e-book format.

Corel acquired the graphics software company Micrografx in late 2001.

By 2001, the team was releasing new beta versions regularly, and by 2005, the maturity of software lead to more widespread reviews, and increased popularity.

On July 16, 2001, Dmitry Sklyarov, a Russian citizen employed by ElcomSoft who was at the time visiting the United States for DEF CON, was arrested and jailed for allegedly violating the United States DMCA law by writing ElcomSoft's Advanced eBook Processor software.

In 2001, a backdoor was discovered ( and fixed ) in the software that had been present in all versions since 1994.

* " Atlas " was the former name for ASP. NET AJAX, Microsoft software, a set of ASP. NET extensions providing Ajax functionality

It was designed to avoid some of the perceived problems with FORTRAN for backward compatibility with historic Buran ( spacecraft ) ALGOL software.

Although early Commodore advertisements attempted to cast the computer as an all-purpose business machine, the Amiga was most commercially successful as a home computer, with a wide range of games and creative software.

The 68000 has a 16-bit external data bus so must transfer 32 bits of data in two consecutive steps, a technique called multiplexing: all this is transparent to the software, which was 32-bit from the beginning.

Although the hardware is limited to four separate sound channels, software such as OctaMED uses software mixing to allow eight or more virtual channels, and it was possible for software to mix two hardware channels to achieve a single 14-bit resolution channel by playing with the volumes of the channels in such a way that one of the source channels contributes the most significant bits and the other the least.

A retargetable sound API called AHI was developed allowing these cards to be used transparently by the OS and software.

Whilst it may not have been as popular as the Spectrum, Commodore 64 or Amstrad CPC, it did sell in sufficient numbers to ensure that new software was being produced right up until the early 1990s.

This was quickly remedied by First Byte Computers who developed an interface and software which allowed a " switched " joystick to be used with the majority of software titles.

The most basic solution was a pure software system supplied on a ROM cartridge that drew a low resolution approximation of the mode 7 display in a graphics mode.

The first used the same graphics processor as the BBC Micro in mode 7 — the SAA5050 — but used software to ensure that it was fed with the correct graphics data.

A software ROM was still supplied, but this did no more than expand the hardware ROM so that it knew mode 7 now existed and was able to switch into it.

Tridgell was a major developer of the Samba software, analysing the Server Message Block protocol used for workgroup and network file sharing by Microsoft Windows products.

* The program was stored as a linked list of lines ; a or took O ( n ) ( linear ) time, and although Applesoft programs were not very long compared to today's software, on a 1 MHz 6502 this could be a significant bottleneck.

AIX was the first operating system to utilize journaling file systems, and IBM has continuously enhanced the software with features like processor, disk and network virtualization, dynamic hardware resource allocation ( including fractional processor units ), and reliability engineering ported from its mainframe designs.

One of the more popular desktop applications was the PageMaker desktop publishing software.

Although the Aster was a clone of the TRS-80 model I it was in fact more compatible with the TRS-80 model III, and ran all the software of these systems including games.

It also had a built in speaker which was compatible with such games software.

A third mode was entered with a special boot floppy which turned the Aster into a Videotex terminal with a 40x25 display and a Videotex character set, The software used the built in RS232 interface of the Aster to control a modem through which it could contact a Prestel service provider.

Another important demand was that the computers could be used in a network ( Aster developed special software and hardware for that ).

Later however the Government turned around and gave 50 % of the order to Philips and their P2000 homecomputer even though the P2000 did not meet all the technical demands, was made in Austria and did not have network hard nor software.