Storage · The Garage Era · 1978
Apple Disk II
Disk II transformed the Apple II from cassette-bound hobby machine into a practical computer, thanks to Woz’s famously elegant controller design.
Apple Disk II: key facts
When was the Apple Disk II released?
The Apple Disk II was released in June 1978. Apple discontinued it in 1984.
How much did the Apple Disk II cost?
The Apple Disk II launched at $495 in 1978 — about $2,356 in today’s money (approximate, US CPI).
What are the Apple Disk II’s specs?
The Apple Disk II used a N/A, with None of memory and 0.14 MB of storage. It ran Driver / firmware support.
Why does the Apple Disk II matter?
Wozniak’s brilliantly cheap floppy system for the Apple II.
Full specifications
| CPU | N/A |
|---|---|
| Cores | — |
| Memory (RAM) | None |
| Storage | 0.14 MB |
| Display | None |
| GPU | N/A |
| Ports | Apple II disk controller |
| Weight | Varies by model |
| Dimensions | 5.25-inch floppy drive |
| Operating system | Driver / firmware support |
| Released | June 1978 |
| Discontinued | 1984 |
| Launch price | $495 |
How the Apple Disk II compares to today
This entire device held less data than a single modern phone photo (~4 MB).
Launched at $495 in 1978 — about $2,356 in today’s money (approx., US CPI).
Cross-architecture speed figures are clock-only and approximate; inflation figures use US CPI.
Did you know?
Its controller used far fewer chips than rivals, saving Apple money and buyers frustration.
Related Storage models
Open the Apple Disk II in the interactive archive →
Last updated: 2026-06-27