Abstract: This specification discloses a method and device for computer testing, which method can perform automatic testing for a plurality of computer on the product line. By describing, recording, and summarizing contents and results of each test item using a script, the defects such as lower efficiency, more errors and longer testing time occurred in human operations can be conquered. The method comprises the steps of: building a structured query language (SQL) server; forming electrical communication between the SQL server and a plurality of computers to be tested; retrieving a command macro from the SQL server according to the-command request sent out from the computer to be tested; controlling the computer to be tested to execute corresponding test commands according to the content of the command macro; receiving and analyzing the execution result of the test command; and displaying the testing result.

Abstract: A projector has a housing, a light source positioned within the housing to generate light, a fan positioned beside the light source to dissipate heat generated by the light source, and an air vent positioned beside the fan to guide heat out of the housing. The air vent reduces turbulence, and thus noise, by the addition of at least one guiding rib. The guiding rib causes heat to flow fluently through the air vent and out of the housing.

Abstract: A communication process by connecting a server end in series with a system under verification (SUV) in a network. The process initializes a communication port connected to server end and SUV and associated parameters through a computer in server end and SUV. Then creates a required thread and an associated interrupt program in server end and SUV respectively. When data has been received, the received data package is stored in an embedded buffer in server end or SUV until a complete data package is stored in the buffer. Next, data is transmitted through a predetermined data transmission module. By continuing this process, it is possible to transmit data by connecting server end in series with SUV through the connected communication port rather than network adapter. It is simple in operation and cost effective.

Abstract: The boiler has on the top thereof, a smoke discharging cover with a water receiving tank, the interior thereof includes an upper combustion chamber and a lower water storage chamber, a water storage tank is provided between the boiler wall and the combustion chamber in which there are a burner and a heat exchanger constructed by welding bundles of pipes on the bottom of a water collecting tray, many water chambers are formed by the partitions in the water collecting tray, the pipes communicate with the water chambers, further heat absorbing passageways are formed within the boiler wall and the smoke discharging cover, these can lengthen flowing time of water and enlarge area for heat exchange, rate of heat exchange and life of use of the heat exchanger are improved, dismounting of the heat exchanger for cleansing is also feasible.