List of computer size categories. From Wikipedia, the free encyclopedia. This illustration shows the development of computers, from huge room-sized computers in the 1940s and 1950s (left-most photo) to smaller personal computers over the 1980s to the 2010s.
New US DOT Hazmat Safety Rule to Place Lithium Battery Limits in Carry-on Baggage on Passenger Aircraft Effective January 1, 2008. Passengers will no longer be able to pack loose lithium batteries in checked luggage beginning January 1, 2008 once new federal safety rules take effect.
Please note that aircraft in-seat electrical power is available on a limited number of aircraft, and there is no guarantee that the in-seat power will be operative. Therefore, customers must have an ample supply of fully charged batteries plus three hours of extra battery time for the flight.