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The following is a list of CMOS 4000-series digital logic integrated circuits.In 1968, the original 4000-series was introduced by RCA.Although more recent parts are considerably faster, the 4000 devices operate over a wide power supply range (3V to 18V recommended range for "B" series) and are well suited to unregulated battery powered applications and interfacing with sensitive analogue ...
After the release of the initial models in 1993, new models started to become available as the Presario brand grew over time. The 500, 700, and 900 series (including the 5500, 7100, 7200, 9200, 9500, and 9600 series) were introduced to compliment and succeed the original lineup, making up the first generation of Presario computers produced from 1993 to 1996, also known as "Series 1".
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