![Magnetic drum|what is Magnetic drum|types of magnetic drum|separate of magnetic drum|magnetic memory - YouTube Magnetic drum|what is Magnetic drum|types of magnetic drum|separate of magnetic drum|magnetic memory - YouTube](https://i.ytimg.com/vi/dgFsEfaTDug/maxresdefault.jpg)
Magnetic drum|what is Magnetic drum|types of magnetic drum|separate of magnetic drum|magnetic memory - YouTube
![File:ERA Magnetic Drum, US, ca. 1951 - Computer History Museum - Mountain View, California.jpg - Wikimedia Commons File:ERA Magnetic Drum, US, ca. 1951 - Computer History Museum - Mountain View, California.jpg - Wikimedia Commons](https://upload.wikimedia.org/wikipedia/commons/thumb/b/ba/ERA_Magnetic_Drum%2C_US%2C_ca._1951_-_Computer_History_Museum_-_Mountain_View%2C_California.jpg/2560px-ERA_Magnetic_Drum%2C_US%2C_ca._1951_-_Computer_History_Museum_-_Mountain_View%2C_California.jpg)
File:ERA Magnetic Drum, US, ca. 1951 - Computer History Museum - Mountain View, California.jpg - Wikimedia Commons
![Magnetic Drum Memory, c. 1951, ≈256 bytes/in², University of Auckland | Computer history, Old computers, Free energy generator Magnetic Drum Memory, c. 1951, ≈256 bytes/in², University of Auckland | Computer history, Old computers, Free energy generator](https://i.pinimg.com/originals/08/b3/92/08b392d3814522af2ff28d6185dc0836.jpg)
Magnetic Drum Memory, c. 1951, ≈256 bytes/in², University of Auckland | Computer history, Old computers, Free energy generator
![Fichier:ERA Magnetic Drum, US, c. 1951 - Computer History Museum - Mountain View, California.jpg — Wikilivres Fichier:ERA Magnetic Drum, US, c. 1951 - Computer History Museum - Mountain View, California.jpg — Wikilivres](https://upload.wikimedia.org/wikipedia/commons/4/4f/ERA_Magnetic_Drum%2C_US%2C_c._1951_-_Computer_History_Museum_-_Mountain_View%2C_California.jpg)