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The Apple I's built-in computer terminal circuitry was distinctive.

All one needed was a keyboard and an inexpensive television set.

Competing machines such as the Altair 8800 generally were programmed with front-mounted toggle switches and used indicator lights ( red LEDs, most commonly ) for output, and had to be extended with separate hardware to allow connection to a computer terminal or a teletypewriter machine.

This made the Apple I an innovative machine for its day.

In April 1977 the price was dropped to $ 475.

As Wozniak was the only person who could answer most customer support questions about the computer, the company offered Apple I owners discounts and trade-ins for Apple IIs to persuade them to return their computers, contributing to their scarcity.

In 1976, Concord High School Junior Wai Lee assembled one of the first 12 Apple Is ( no serial number ), the first Apple Computer in an aluminum housing.