Build intuition for digital circuits with adders, memory, and ring oscillators.

1. Half Adders and Full Adders

   Toggle three input bits to see how a full adder calculates the sum and carry.

2. 2-bit Ripple-Carry Adder

   Connect two full adders to add 2-bit numbers and follow the carry into the next position.

3. Ring Oscillator

   Change the number of NOT gates to compare continuous oscillation with a stable state.

4. DRAM and NAND Flash

   Compare how DRAM and NAND update data and how long the operations take.