The Dropbox of that era was a company called Seagate. It was the king of the 14-inch disk drives. In the mid-1980s, Seagate held the disk market with a vice-like grip.
Readers of a certain age may remember 14-inch computer disks. These were about the size of a Christmas card. It was the standard form of storage until around 1990.
This was long before Dropbox and iCloud. Data had to be physically stored in these disks. They had less than 2.5MB of capacity, which is not enough to store two issues of The Edge Singapore.

