Subject
Computer Science
Topic
Computer Hardware
The most common DC logic rail on traditional motherboards is:
The most common DC logic rail on traditional motherboards is:
a)
−12 Vb)
0 Vc)
+5 Vd)
+12 VExplanation
Legacy TTL/CMOS logic operated primarily on +5 V. +12 V powered motors/fans; −12 V served serial interfaces. Modern boards also rely heavily on low-voltage CPU rails created from +12 V.Related questions
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