Netbooks subnotebooks web-based applications optical disc Ultrabooks Chromebooks Intel laptop
Netbooks, also called mini notebooks or subnotebooks, were a subgroup of laptops suited for general computing tasks and accessing web-based applications.   Initially, the primary defining characteristic of netbooks was the lack of an optical disc drive,  smaller size, and lower performance than full-size laptops. By mid-2009 netbooks had been offered to users "free of charge", with an extended service contract purchase of a cellular data plan. Ultrabooks and Chromebooks have since filled the gap left by Netbooks. Unlike the generic Netbook name, Ultrabook and Chromebook are technically both specifications by Intel and Google respectively.
