👉 Legacy computing refers to the era of computing that spanned from the 1950s to the early 2000s, characterized by the use of mainframe computers and early personal computers running proprietary operating systems. This period laid the groundwork for modern computing through innovations in hardware, software, and networking technologies. Despite its age, legacy computing has left a profound impact on contemporary IT infrastructure; many modern systems still rely on components and protocols developed during this era. For instance, the architecture of mainframes influenced server design, and early programming languages like COBOL continue to be used in niche applications. The transition from legacy systems to modern cloud-based solutions has been facilitated by the foundational advancements made during this time, ensuring that the principles of computing established in the past continue to shape and support today's digital landscape.
