Abstract:
A network computer including, a chassis, a power supply affixed to an interior surface of the chassis, a motherboard powered by the power supply, the motherboard including a clock generator, a boot code storage device, a processor, and a system memory, and a network interface suitable for interfacing the network computer to a server computer via a network. The network computer lacks a disk drive, but includes local permanent storage such as a compact flash card. Preferably, the network computer includes one or more peripheral devices connected to a peripheral bus of the computer. In the preferred embodiment, the network interface provides is an Ethernet compliant connection with an RJ45 connector. In one embodiment, the power supply powers the motherboard via a single power plane. In one embodiment, the network computer includes disk drive facilities for receiving a disk drive. The invention further contemplates a method of testing a network computer including connecting a disk based storage device to a network computer that lacks a disk based storage device but includes local permanent storage, such as a compact flash card. A disk based operating system is then loaded on the network computer via the disk based storage device. A test suite supported by the disk based operating system is then loaded and executed on the network computer to verify its functionality. In one embodiment, the method further includes similarly installing the disk based storage device in each of a plurality of network computers, whereby a single disk based storage device is used to verify each a plurality of network computers.
Abstract:
A network computer (12) receives instructions from a network manager (11), including a control interrupt instruction, a system management instruction, and a release instruction. A processor (16) associated with the network computer (12) executes the control interrupt instruction first to produce a control interrupt signal. This control interrupt signal causes an operating status controller (17) associated with the network computer (12) to disable local operational status control at the network computer. After local operational status control is disabled at the network computer (12), the processor (16) executes the system management instruction and performs a system management operation at the network computer. Finally, after the system management operation is completed, the processor (16) executes the release instruction to produce a release signal. The release signal causes the operational status controller (17) to enable local operational status control at the network computer (12).
Abstract:
A system reset arrangement (12) resides alternately in an enabled condition or a disabled condition. When the system reset arrangement (12) is in the disabled condition, a switching input provided through a switch (11) does not effect a system reset. However, in the enabled condition, the switching input through the switch (11) causes system reset arrangement (12) to produce a reset output which resets the system. A reset disable arrangement (14) maintains the system reset arrangement (12) in the disabled condition in response to a disable input. When the disable input is removed, reset disable arrangement (14) maintains system reset arrangement (12) in the enabled condition. An interrupt output (15) develops an interrupt signal in response to the switching input. This interrupt signal prompts an interrupt controller (16) to issue a desired system management command to be processed by the system processor. This command may place the system in a standby mode and, in any event, removes the disable input, causing the reset disable arrangement (14) to maintain the system reset arrangement (12) in an enabled condition. Thus, activating the switch (11) while the computer is in a normal operational state causes the computer to go into a standby state; and, activating the switch (11) while the computer is in the standby state causes the computer to reset back to the normal operational state.
Abstract:
A composition for making a transparent sintered yttrium aluminum garnet ceramic material wherein the composition includes an amount of yttrium oxide powder and aluminum oxide powder. The yttrium oxide powder has a particle surface area of about 18 m2 per gram and the aluminum oxide powder has a surface area of about 10 m2 per gram. The mixture is doped with a Si containing compound and Mg-containing compound, and formed into a desired shape. The mixture in the formed shape is converted to yttrium aluminum garnet during a sintering schedule to form a transparent ceramic material having an in-line transmission of at least 50%.
Abstract:
A system and method makes use of the line-in, line-out connectors for each right and left stereo channel of an audio card to provide a communications network. The distributed computers are connected in a master/slave configuration. All of the slave systems have the line-in ports, and the line-out ports, connected together. The master system line-out is connected to each slave system line-in port, and the slave system line-out ports are connected to the master line-in port, for each channel. A communications protocol is provided wherein the master system allows audio and data information to be simultaneously transferred between the master and slave systems. The master provides a clock signal and performs arbitration in order to facilitate the information transfer.
Abstract:
A transparent sintered yttrium aluminum garnet ceramic material formed from a solid-state reaction of a mixture of yttrium oxide powder and aluminum oxide powder during sintering. The ceramic material preferably has an in-line transmission of greater than 75% so it may used to fabricate arc tubes for high intensity discharge lamps used in automotive headlamps.
Abstract:
A transparent sintered yttrium aluminum garnet ceramic material formed from a solid-state reaction of a mixture of yttrium oxide powder and aluminum oxide powder during sintering. The ceramic material preferably has an in-line transmission of greater than 75% so it may used to fabricate arc tubes for high intensity discharge lamps used in automotive headlamps.
Abstract:
An arc tube in a high intensity discharge lamp comprises an arc body comprising a single-phase first ceramic material has a first elemental composition, and the arc body has a sealed chamber. At least two legs are attached to the arc body, and at least one of the legs has a single-phase second ceramic material having a second elemental composition that is different from the first elemental composition. An electrode is positioned within a respective leg, each electrode has a tip positioned within the chamber and the tips of the electrodes are spaced apart forming an arc region there between.
Abstract:
A cartridge receptacle receives a cartridge that features a computer adapter card. The cartridge receptacle includes a side with first and second card guides attached to that side. The first and second card guides are dimensioned to cooperate with retaining structure on an installed cartridge to retain the installed cartridge in the receptacle while providing a gap for air flow between the installed cartridge and the side. Various embodiments of the receptacle accept various sizes and numbers of expandable cartridges. Corresponding cartridges and information handling systems incorporating receptacles for expandable computer cartridges are also described.
Abstract:
An information handling system includes support for dynamic power throttling. In one embodiment, an information handling system includes power level detection and power control modules. The power level detection module may monitor power consumption for the information handling system and may automatically transmit power level data to a power level manager, based on the monitored power consumption. The power control module may receive power control data from the power level manager. The power control module may also automatically adjust power consumption of the information handling system, in accordance with the power control data received from the power level manager. In another embodiment, an information handling system may include an interface and a power level manager. The power level manager may receive power information for computers via the interface, may automatically compute an adjusted power threshold setting, and may automatically transmit the adjusted power threshold setting to a computer.