The following is a Plus Edition article written by and copyright by Dick Eastman.
Flash drives have generally replaced CD-ROM disks, DVD-ROM disks, Blu-Ray disks, floppy disks, magnetic tape, and even old-fashioned punch cards as the preferred method of storing backup copies of computer data. Indeed, these tiny devices are capable of storing as much as 256 gigabytes of data for reasonable prices, and even higher capacities are available, although perhaps at somewhat unreasonable prices. (“Reasonable prices” are defined as prices that are lower than purchasing equivalent storage capacity on CD-ROM, DVD-ROM, and Blu-Ray disks.) If history repeats itself again, even today’s unreasonably-priced high-capacity flash drives will be cheaper within a very few years.