Abstract: In some examples, a computing device includes memory including system memory, and a processor in electronic communication with the memory. In some examples, the processor receives a system management interrupt. In some examples, the processor identifies trigger code that triggered the system management interrupt. In some examples, the processor executes code from the system memory when the trigger code is a virtualization program.

Abstract: An example storage medium includes instructions that, when executed, cause a processor of a computing device to read, during start-up of the computing device, first configuration data from a first storage device of the computing device; read second configuration data from a second storage device of the computing device; determine that there is an inconsistency between the first configuration data and the second configuration data; check a tamper status of the computing device; based on the tamper status and the determination that there is an inconsistency between the first configuration data and the second configuration data: (i) clear a secure storage location of the computing device, the secure storage location storing data to access protected data; or (ii) replace the first configuration data on the first storage device of the computing device based on second data and continue the start-up of the computing device.

Abstract: An example non-transitory machine-readable medium includes instructions that cause a processor of a computing device to create a first virtual machine using a hypervisor, execute a trusted basic input/output system (BIOS) in the first virtual machine, create a second virtual machine using the hypervisor, and execute an untrusted BIOS component in the second virtual machine. The first virtual machine is executed with a greater privilege to access a resource of the computing device than the second virtual machine.

Abstract: Examples of electronic devices are described herein. In some examples, an electronic device includes an operating system. In some examples, the electronic device includes a processor. In some examples, the processor is to generate a first code. In some examples, the processor is to encrypt the first code based on a public key to produce a second code. In some examples, the processor is to enter a locked state, where a booting of the operating system is blocked in the locked state. In some examples, the locked state is unlockable with the first code. In some examples, the electronic device includes a communication device to output the second code. In some examples, the communication device is to receive an authentication message in response to the second code. In some examples, the processor is to enter an unlocked state based on the authentication message.

Abstract: An example computing device includes a user interface, a network interface, a non-volatile memory, a processor coupled to the user interface, the network interface, and the non-volatile memory, and a set of instructions stored in the non-volatile memory. The set of instructions, when executed by the processor, is to perform a hardware initialization of the computing device according to a setting, establish a local trust domain and a remote trust domain, use a local-access public key to issue a challenge via the user interface to grant local access to the setting, and use a remote-access public key to grant remote access via the network interface to remote access to the setting.

Abstract: A method for forming a semiconductor structure. Two isolation structures are formed in a semiconductor. A cavity is etched in the semiconductor between the two isolation structures in the semiconductor. Dopants are implanted into a bottom side of the cavity to form a doped region in the semiconductor below the cavity between the two isolation structures. A contact is formed in the cavity. The contact is on the doped region and in direct contact with the doped region.

Abstract: A clasp for stringed jewelry having a first component rotatably engageable to a second component. A rotational engagement of one end of the string or wire with the first component allows it to be rotated to engage with a second component attached to the second end of the string or wire. The rotational engagement of the first component, prevents any twisting of the wire or string during the engagement process and prevents deformation of the necklace from twisting.

Abstract: A method for optimizing a sequence of things that employs a fictitious play algorithm. The method includes assigning an agent to each thing in the sequence, and defining an objective function that is a function of certain performance indices of the things. The method also includes determining an initial sequence of the things, and defining a random sample of a plurality of past sequence of the things. The method then sequentially and independently selects an optimal position for each thing in the sequence that minimizes the objective function relative to the sampled sequences. The method then determines a new sequence of the things based on the selected positions of the things in the sequence, and then determines whether the new sequence is closer to optimal than the previous sequences of the things.

Abstract: A method for making an infeasible sequence of things feasible. The method includes generating a series of matrices that define the relative position of the things in the sequence based on graph theory, and multiplying the matrices to determine the required order of the things in the sequence based on prior pre-determined constraints. The method selects a current position for each thing in the sequence, and looks at each thing before the current position of a thing on a sequential basis to determine whether the thing at the current position should come before any of the previous things based on the multiplied matrices. The method also looks at other constraints, including determining if any of the things must follow each other in the sequence, determining whether any of the things in the sequence cannot follow one after the other, etc.

Abstract: An apparatus is provided that enables users to insert and remove optically read disks without touching them by hand. The apparatus comprises a hollow frame and a spring-loaded plunger with flexible hooks. When the plunger is pushed down out of the locked position, protrusions on the hooks are forced out of convex indentations and against the inner sides of the frame, compressing the hooks. The apparatus can then be inserted through the central hole in a disk. The user then releases the plunger, which is forced upward by a compressed spring so that the protrusions on the hooks fit back into the indentations. The hooks then expand outward so that the disk is held securely and may be removed from its storage case or a player. Reversing this operation allows a user to insert a disk into a storage case or player.

Abstract: A multistage machining process includes a plurality of stations. Workpiece feature quality is predicted based on decomposition of the machining process into sources of variation, reticulation of the machining process into machining stations and error models that account for significant contributions to feature quality including from categorical sources of variation.