Abstract: A system and a method for control of fan rotational speed are applied in an electronic device with a fan for temperature adjustment. The electronic device at least records a first fan rotational speed of the fan when a temperature of the fan is higher than a predetermined temperature interval and a second fan rotational speed of the fan when the temperature of the fan is lower than the temperature interval. A fan rotational speed during operation of the fan is recorded. The electronic device detects a temperature of an exothermic object being adjusted by the fan, and outputs a temperature parameter. The electronic device determines whether the temperature parameter belongs to the temperature interval and accordingly adjusts the fan rotational speed of the fan. The system and method make change of the fan rotational speed less sensitive to oscillations in system temperature and prolong the lifetime of the fan.

Abstract: A program installation system and method allowing a diskless computer device to perform program installation is proposed, the method comprising: establishing a booting unit and a memory section in the computer device, a DHCP server comprising a network information database for storing network setting information, and a storage server comprising a program storage section for storing at least one program and a information storage section for storing information sent from the network system; issuing a booting request by the booting unit; the DHCP server sending network setting information to the computer device in response to receiving the booting request; the computer device storing the network setting information in the memory section and issuing a program installation request based on the stored network setting information; the storage server storing information of the memory section in the information storage section and storing a network address of the storage server to the booting unit in response to recei