switch is also a hub but a newer version... its also called switch hub
main difference with the old hub (simply called hub) is that pag switch hub gamit mo, each user can experience the full speed of the connection. pag hub lang, automatic hati agad
example, merong 3 pc's attached to 512kbps connection
pag switch gamit mo, each of those pc's can have a max of 512kbps (ang switch na ang bahala mag allocate according to the needs of each pc)
pag hub gamit mo, automatic, divide by 3 yung 512kbps. so kahit na walang ginagawa yung dalawang pc na internet related, yung internet speed ng third pc will only be a max of 1/3 of 512kbps
thats why wala na gumagamit ng hub ngayon. puro na switch