What are small size modern computers?

Great development that took place in the field of semiconductor technology resulted in the reduction of size of modern computers. With the development of transistors the size of computer came down from room size to shelf size. Later on with the development of IC technology computer size shrinked to box size. With further development of single chip CPU with VLSI technology, further reduction in size of computers became possible. Now with the latest ultra large scale integrated circuits, entire CPU, memory and I/O ports and other semiconductor devices like timers, ADC, DAC etc. Can be integrated into single chip resulting in design of palm top computers.