Final answer:
The Ethernet upgrade mentioned is known as ThinNet or 10BASE2, which uses a thinner, more flexible coaxial cable. This standard supports 10 Mbps speed over a maximum length of roughly 200 meters.
Step-by-step explanation:
The 'more skinnier, more flexible cable' referred to in the question is the coaxial cable. This type of cable was used in an Ethernet networking standard known as ThinNet or 10BASE2. Unlike the thicker 10BASE5 coaxial cable, 10BASE2 had a much smaller diameter, which made it more flexible and easier to handle. The '10' in 10BASE2 stands for the maximum transmission speed of 10 Mbps (megabits per second), 'BASE' refers to baseband signaling, and the '2' actually approximates the maximum segment length of the network, which is about 200 meters.