Inside an ATM:
Ever wondered what really happens after you insert your card?
An ATM is more than just a screen and a cash slot. It's a mini high-security vault with a brain.
1. Card Insertion: When you slide your card into the Card Slot, rollers pull it in. The Card Reader instantly reads the chip and magnetic stripe, encrypting your data.
2. Authorization: That data goes to the Main Board — the ATM's CPU, security module, and encryption processor. It securely talks to your bank's network to verify your PIN and balance.
3. Cash Dispense Prep: Once approved, the machine gets to work. Inside the Secure Safe Compartment, cash is stored in Cash Cassettes. In the Philippines, these are loaded with P20, P50, P100, P500, and P1000 bills. The selected cassette releases the exact amount to the Bill Counter.
4. Convey & Dispense: The Bill Counter verifies each bill, then Conveyor Belts transport the counted pesos along a precise path straight to the Dispenser Slot — and into your hands.
All of this is powered by a Power Supply Unit with backup battery, locked behind reinforced steel.
Next time you withdraw, you'll know — it's not magic, it's mechanics.






