The History from the Floppy Disc to the USB Flash Drive
A half century ago floppys are still a carrier medium. The actually PCs dont still have a floppy diskdrive any longer, and ar so not in a position to scanned them. A disk space of 1.44 MB was the maximum of the floppy drive. You could format them as required and to store new venues. Next was the CD-ROM.A half century ago, the working stations had indeed already a classical CD-ROM drive, but it took some time to have the CD burner fitted as standard in standard PCs. Until then, there were many programmes to buy on CDs, but data storage was not possible on them. Quite at the same time then the USB sticks, SD cards and external hard drives came to the market.
The latest storage medium
The SD card has the benefit that it is smaller and is used as a storage medium in digital cameras, for example. As a storage medium outer of such devices, it is rarely used, because not every computer has a Micro SD card slot. Therefore these cameras always are supplied with cable to join the device directly to the laptop. The external drive has huge storage space, the current ones have 1000 GB, or 1 TB in size. However, most need an external own power source, they ar massive and unwieldy. Better as this is the USB stick. All notebooks have a USB connection, the stick needs little power and is easy to take in your bag. These three storage media are constantly refined and getting more and more storage space. The current speed of development is such that the capacity every year doubles. However not in price. A year ago you got an external hard drive with 500 GB for about 100 . Now they are twice as large for the same price.