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Review Questons 1. The original commercial version of Ethernet supported 10 Mbps bandwidth; the version introduced in the early 1990s supports 100 Mbps; and in 1998, Gigabit Ethernet was introduced. All versions use the same data frame formats, with the same maximum PDU sizes, so they can interoperate freely.
The first iteration of this technology was introduced by IBM in 1956. It was large, almost around the size of two large household refrigerators, and had a total capacity of 5 MB. From 1956-2015, there has been a great improvement in modern hard drives. Now, innovative technology has been introduced and hard drives have new interfaces and greater storage, performance, and flexibility.