Apollo Guidance Computer Tee

Design

The Apollo Guidance Computer (AGC) was the onboard digital computer for both the Command Module and Lunar Module, handling guidance, navigation, and control functions. It was the first computer built using silicon integrated circuits and operated at only 2.048 MHz, yet it reliably performed complex real-time tasks in space. This design features the custom human interface called the DSKY (“display and keyboard”) where astronauts entered commands with “Verb / Noun” codes. The AGC used core rope memory for read-only code storage and magnetic core memory for rewritable data. It was also built with minimal physical size (roughly 24×12.5×6.5 in) and weighed about 32 kg. During the Apollo 11 landing, the AGC’s design proved resilient under pressure when 1201/1202 “executive overflow” alarms triggered - but the system gracefully prioritized critical tasks and recovered, allowing the mission to continue and land successfully.

Item

A premium tee built for both comfort and longevity. Designed with reinforced shoulder tape to keep seams stable, a ribbed knit collar that holds its shape, and a seamless construction that minimizes fabric waste while giving a refined finish. The smooth, durable cotton base is ideal for high-quality prints and feels great against the skin. Ethically sourced materials ensure every piece meets our standard for responsible production.

Care instructions

- Non-chlorine: bleach as needed
- Do not iron
- Do not dryclean
- Machine wash: cold (max 30C or 90F)
- Tumble dry: low heat