Question

Read the article "Data storage: Everything you need to know about emerging technologies (Links to an external site.)" on the ZDNet web site and research to learn about the technology of data storage devices. In general, there are three primary types of data storage devices in use today: magnetic storage, optical storage, and solid state storage. Paper was at one time was also a storage technology, but its use is very limited these days. From your research and the reading assignments, identify at least three different storage devices in each of the three types listed above. For each, identify its primary use, its capacity, and its data retention length (how long will it hold the data).

Answer 1

Magnetic Storage Devices;

Magnetic tape : data retention length upto 10 years

Floppy disk : data retention length (10-20 years)

Cassette tape; data retenretentiontion length (10-20 years)

Optical storage devices;

CD : storage (800mb) data retention length (2-3 year)

DVD: storage (4.7 GB) data retention length ( 5-10 years)

Blu-ray : storage ( 50 GB) data retention length ( 2-5 years)

Solid State devices;Pendrives,

Flash memory cards ( 128 GB to 256 GB)

Memory sticks (512 GB)

Solid State devices are durable.