An example of how computer storage has changed form the 1970s to today.

1. Data Storage
1970 compared to Today

2. Computer Room in the 1970s

3. Disk Drives
These washing machine looking cabinets are
really Disk Drives used for data storage.

4. Removable Disk Storage
The top opens to either Insert or
Remove the Disc pack.
Disc Pack Disc Pack
(Case Removed)

5. Notice, the empty Disc Packs on top
of each Disk Drive.
Removable Disk Storage

6. Disk Storage per Drive (300MB)
Each of these Disk Drives can hold
300 MB of data storage.

7. Total Disk Storage (approx. 16GB)
As you can see there are a lot of
Disk Drives in this computer room.
There are at least 55 Disk Drives
or
300 MB x 55 = 16 GB of data

8. 32 Computer Rooms
But what if we had 32
of these computer
rooms?

9. 32 Computer Rooms
All this Disk Storage can now
be stored on a
512 GB USB Stick!