In computing, a legacy system is an old method, technology, computer system, or application program, "of, relating to, or being a previous or outdated computer system," yet still in use. Often referencing a system as "legacy" means that it paved the way for the standards that would follow it. This can also imply that the system is out of date or in need of replacement.
Legacy code is old computer source code. It could simply refer to an organization's existing code base which has been written over many years, or it could imply a codebase that is in some respect obsolete or supporting something obsolete. Long-lived code is susceptible to software rot, where changes to the runtime environment, or surrounding software or hardware may require maintenance or emulation of some kind to keep working. Legacy code may be present to support legacy hardware, a separate legacy system, or a legacy customer using an old feature or software version.
While the term usually refers to source code, it can also apply to executable code that no longer runs on a later version of a system, or requires a compatibility layer to do so. An example would be a classic Macintosh application which will not run natively on macOS, but runs inside the Classic environment, or a Win16 application running on Windows XP using the Windows on Windows feature in XP.
An example of legacy hardware are legacy ports like PS/2 and VGA ports, and CPUs with older, incompatible instruction sets (with e.g. newer operating systems). Examples in legacy software include legacy file formats like .swf for Adobe Shockwave or .123 for Lotus 1-2-3, and text files encoded with legacy character encodings like EBCDIC.

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  1. L

    Cheat Hogwarts legacy

    Need Torrent
  2. C

    Help Sino may Hogwarts Legacy digital binili on Ps4?

    Pm po hehe
  3. C

    For Sale S> Denuvo Games [NFS Unbound,Forspoken,Hogwarts Legacy, Deadspace Remake and many more]

    Gusto mo malaro New Games pero tight budget kasi mahal na ng Full price games (2.5k pesos pataas) at wala pang available Crck. Why Offline Access kesa sa Crck Games? - updated ang game files upto the latest gameupdate -sure na walang virus or malware. -Rekta sa Steam ang pag download ng Game Pm...
  4. J

    Help Aspire 3 a315-42g No legacy boot

    Good morning. Bat wala pong option yung bios na legacy boot. D ko ma format kasi d ko ma set to legacy. TIA.
  5. M

    Help Legacy and uefi

    ano ang mas prefer niyo?
  6. T

    Help Patulong ako po ayaw na magboot ng PC ko.

    Mga boss. Pa help po ako. Today, kinalikot ko PC ko kasi gusto kong mag install ng Windows 11. Hindi ako expert at mahilig lang talagang mag explore. Isa sa problema kaya di makainstall is dapat enabled yun something about secure boot. Tapos kailangan daw naka UEFI. Pagcheck ko nang sakin naka...
  7. Dual-Booting Windows 10 with ChromeOS on Legacy BIOS.

    Dual-Booting Windows 10 with ChromeOS on Legacy BIOS.

    Note: Try at your own risk. Post ko later my own tutorial nito. best for old laptop/PC
  8. B

    Closed Legacy. connected for 9 hours. walang kwenta post dahil makakatay din ito :(

    connected to preferred servers : 20, 6, 11, 14, 5 buhay na buhay pa siya ngayon. wag muna kayo mag repost ng working PS. tntinstagrab.com lang nilagay ko sa setting wla ng iba. setting. check remove port. tapos input PS tntinstagrab.com then ok. yun lang pinaka simpleng setting. working...
  9. A

    Closed Sana mapansin

    Mga master pashare naman ako ng settings para sa psiphon legacy Salamat sa sasagut.