How RAM & DRAM Cells Work
Volatile memory storing gigabytes of active working data using microscopic capacitor charge leaks.
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Step 11. Row Activation (RAS)
Memory controller asserts wordline address.
Transistors along the selected row open, dumping capacitor charge onto vertical bitlines.
Step 1 of 4How RAM & DRAM Cells Work
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RAM is your computer's high-speed temporary desktop where open apps live while running.
Key Takeaways
- ✓RAM (Random Access Memory) is lightning fast but loses all data when powered off (Volatile).
- ✓Each bit is stored as a tiny electrical charge in a microscopic capacitor.
- ✓Capacitors leak charge rapidly, so RAM must be refreshed thousands of times per second.
The Ultra-Fast Scratchpad
When you open a program or game, the computer copies the necessary files from your SSD into RAM (Random Access Memory). While an SSD takes ~50–100 microseconds to deliver data, RAM responds in 10–15 nanoseconds (thousands of times faster). But unlike flash memory, RAM uses tiny electronic capacitors that leak their charge in milliseconds — meaning it requires constant electrical power to stay alive.Interactive Challenge+25 XP