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A systems development life cycle is composed of distinct work phases that are used by systems engineers and systems developers to deliver information systems.Like anything that is manufactured on an assembly line, an SDLC aims to produce high-quality systems that meet or exceed expectations, based on requirements, by delivering systems within scheduled time frames and cost estimates. [3]
Concise Microsoft O.S. Timeline – a color-coded concise timeline for various Microsoft operating systems (1981–present) Bitsavers – an effort to capture, salvage, and archive historical computer software and manuals from minicomputers and mainframes of the 1950s, 1960s, 1970s, and 1980s; A brief history of operating systems
The first 4 models were released on this date. The PS/2 Model 30 based on an 8086 processor and an old XT bus, Models 50 and 60 based on the 80286 processor and the Model 80 based on the 80386 processor. These used the 3½" floppy disks, storing 1.44 MB on each (although the Model 30 could only use the low 720KB density). These systems (except ...
Timeline of computing presents events in the history of computing organized by year and grouped into six topic areas: predictions and concepts, first use and inventions, hardware systems and processors, operating systems, programming languages, and new application areas.
Timeline of free and open-source software (1976–present) Timeline of hypertext technology (1945–2001) Timeline of computer viruses and worms (1966–present) Timeline of social media (1979/1980–present) Timeline of Linux kernel development (1991–present) Timeline of computing; Microprocessor chronology; Timeline of programming languages
A life-cycle "model" is sometimes considered a more general term for a category of methodologies and a software development "process" is a particular instance as adopted by a specific organization. [ citation needed ] For example, many specific software development processes fit the spiral life-cycle model.
This article presents a detailed timeline of events in the history of computing from 2020 to the present. For narratives explaining the overall developments, see the history of computing . Significant events in computing include events relating directly or indirectly to software , hardware and wetware .
The categorisation of the past into discrete, quantified named blocks of time is called periodization. [1] This is a list of such named time periods as defined in various fields of study.