Old Hard Drive 1950s IBM

Hard drives with massive storage capacities are getting smaller, but back in 1956, it was an entirely different story. Introduced by IBM in 1956, HDDs became the dominant secondary storage device for general-purpose computers by the early 1960s. Assembled with covers, the 350 was 60 inches long, 68 inches high and 29 inches deep. It was configured with 50 magnetic disks containing 50,000 sectors, each of which held 100 alphanumeric characters, for a capacity of 5 million characters.Disks rotated at 1,200 rpm, tracks (20 to the inch) were recorded at up to 100 bits per inch, and typical head-to-disk spacing was 800 micro-inches. Continue reading for more interesting photos.

18. Barcelona, Spain Captured by Scott Kelly from the ISS

Interesting Photos

17. Clever Way to Show What Ancient Ruins Looked Like

Interesting Photos

16. Lex Luthor from Batman v Superman

Interesting Photos

15. Baby Shark

Interesting Photos

14. Stormtrooper Riding Motorcycle

Interesting Photos

13. What 39G of Sugar Actually Looks Like

Interesting Photos

12. Constructing Worker in 1980

Interesting Photos

11. Jupiter’s Great Red Spot

Interesting Photos

10. Calico Box Crab

Interesting Photos

9. Flower Cut from a Single Sheet of Paper

Interesting Photos

8. Hikers Looking at Yosemite’s Half Dome

Interesting Photos

7. Tiled Stairs in San Francisco

Interesting Photos

6. Lava Up Close

Interesting Photos

5. Pool Fire at the Cosmopolitan Las Vegas

Interesting Photos

4. Origami Pot That Grows with Plants

Interesting Photos

3. Mutant Two-Color Orange

Interesting Photos

2. Floating Fountains in Osaka, Japan

Interesting Photos

1. Boulder in River at Zion National Park

Interesting Photos