Remember CMOS
Full name: Complementary Metal-Oxide-Semiconductor
Memory aid: Complementary transistor partners; remember the PC settings battery.
The CMOS battery does not power the computer's normal operation.
Study area: Firmware & boot · Batch 1
Relevant study for: CompTIA A+ Core 1 220-1201 · CompTIA A+ Core 2 220-1202 · CompTIA Server+ · CompTIA Security+ SY0-701
Practice with exam flashcards →Hardware & Components / Knowledge library
CMOS — Complementary Metal-Oxide-Semiconductor
Names a semiconductor technology associated with legacy PC settings memory.
Why learn CMOS — Complementary Metal-Oxide-Semiconductor?
Names a semiconductor technology associated with legacy PC settings memory.
Where it came from
The CMOS battery does not power the computer's normal operation.
- Memory aid (a learning cue, not the expansion): Complementary transistor partners; remember the PC settings battery.
Build your understanding
Work through these exercises in order. Try the task before opening a reference.
- Without looking, expand CMOS: Complementary Metal-Oxide-Semiconductor.
- Recall this memory aid: Complementary transistor partners; remember the PC settings battery.
- Explain the practical use: Names a semiconductor technology associated with legacy PC settings memory.
- Explain this distinction: The CMOS battery does not power the computer's normal operation.
- Identify CMOS in a device specification, architecture diagram, or system inventory.
Documentation and sources
- UEFI specifications (uefi.org)
- Microsoft TPM overview (learn.microsoft.com)