DD-50 means 50-pin D-SUB
series D subminiature connector in
Hardware
Similar to DD-50
486 - INTEL 80486 Microprocessor
4GT - 4 GigaByte
RAM Tuning
586 - Intel PENTIUM Processor
A - form A
normally open contacts
A-D - Analog to Digital
A/D - Analog-to-Digital converter
AA - AMD Assured
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