Abstract: A method in a data processing system for identifying a circuit. In a preferred embodiment, a set of bits, with a defined chain length, are shifted into the circuit one bit at a time. The bits shifted out from the circuit are compared to the bits, from the set of bits, shifted into the circuit to determine if the circuit corresponds to a first type circuit. The comparing step is accomplished before all bits in the set of bits have been shifted into the circuit. If the circuit is not a first type circuit corresponding to the set of bits shifted into the circuit, then the shifting of bits into the circuit is discontinued and the process is repeated with a second set of bits corresponding to a second circuit type until the circuit type has been identified.

Abstract: A system, device, and method for dynamically testing integrated circuits is disclosed. The system includes a first integrated circuit including input pins, output pins, normal operating logic, and control logic. The control logic is connectable to the input pins and configured to initiate a test interval based on a state of the input pins and to record the state of the input pins during the test interval. A second integrated circuit of the system includes input pins, output pins, normal operating logic, and test control logic. The control logic connectable to the output pins and configured to generate a user programmable set of test output signals. At least some of the output pins of the second integrated circuit are connected to at least some of the input pins of the first integrated circuit. The test control logic of the first integrated may be configured to initiate the test interval when the state of the input pins matches a predefined state.

Abstract: A remote operator interface for a network computer is provided by a pocket-sized structural enclosure which remotely mounts input and output interface devices. The input and output devices providing a remote interface to control a network computer. The pocket-sized structural enclosure provides a means for electrically coupling the input and output interface devices to the network computer. The cable or data transmission medium which electronically couples the remote operator interface to the network computer provides a communication transmission medium for the network computer system. The pocket-sized structural enclosure can be mounted to a keyboard in close proximity to the operator of a network computer.

Abstract: A system, device, and method for dynamically testing integrated circuits is disclosed. The system includes a first integrated circuit including input pins, output pins, normal operating logic, and control logic. The control logic is connectable to the input pins and configured to initiate a test interval based on a state of the input pins and to record the state of the input pins during the test interval. A second integrated circuit of the system includes input pins, output pins, normal operating logic, and test control logic. The control logic connectable to the output pins and configured to generate a user programmable set of test output signals. At least some of the output pins of the second integrated circuit are connected to at least some of the input pins of the first integrated circuit. The test control logic of the first integrated may be configured to initiate the test interval when the state of the input pins matches a predefined state.

Abstract: A small network computer has a chassis which is mounted within a housing. A variety of electronic components are mounted to the chassis and a pair of feature card slots are located in a tailstock portion of the chassis. A full-sized 3.5 inch hard disk drive is mounted to a flat bracket in one of the feature card slots. The bracket inserts into the tailstock on one end and is fastened to the chassis on an opposite end.

Abstract: A computer tower has a variety of electronic components mounted within an enclosure. Power and communication-type cables extend from the enclosure for connection to a power source and peripheral components such as a monitor or operator interface. A pedestal is mounted to the lower end of the enclosure to increase the stability of the computer tower when it is placed on a level surface. The bottom of the pedestal has a recess or channel which extends all the way around the pedestal near its outer edge. The unused length of the cables may be coiled into the channel of the pedestal for temporary and aesthetically appealing storage.

Abstract: A module type distinguishing apparatus and method for differentiating between modules based upon the presence or absence of a pulling resistor at a specified pin connection of the modules. A high impedance pulling resistance is connected to the line and is subject to sensing while a tri-state mode of operation is initiated in the module. The presence or absence of the pulling resistor in the module is detected and recorded in a register. Differentiation between module types is accomplished based upon the binary state of the data in the register. In a particularized implementation, industry standard L2 cache modules are distinguished as to tag bit size depending on the presence or absence of a pulling resistor as detected during tri-state operation of a tag output pin.

Abstract: A power supply interface suitable to provide voltages of appropriate magnitude to a static random access memory (SRAM) device from a combination of independent sources including a main power supply, an auxiliary power supply, and a battery. The voltages from the interface are at levels consistent with the SRAM modes of operation. During limited voltage tolerance read and write access operations, main power supply voltage is provided through a low forward voltage drop switched metal oxide field effect transistor (MOSFET). Parasitic paths, potentially producible by the transistor and affecting the battery source of power, are eliminated through the use of a second, complementary MOSFET. The second MOSFET is directly responsive to a POWERGOOD signal from the main power supply, indicating both an "on" state and an appropriate voltage level of the main power supply.

Abstract: Improved hyphenation apparatus is combined with word verification apparatus to automatically provide hyphenation points for input words from a keyboard or other input device. The spelling of each word input to the system is verified by the digital reference matrix section of the apparatus by calculating a vector magnitude and angle for the word which is compared to the contents of a storage dictionary of words. Each cell of storage in the storage dictionary, in addition to containing a unique angle representation of the input word, contains a byte of data representing the valid hyphenation points for the input word. When an input word is verified to be correctly spelled, the hyphenation byte is read out of dictionary and used by the hyphenation section to reassemble the word in hyphenated form. The hyphenated word is then displayed to the operator for appropriate action.

Abstract: A system which utilizes a floating hot zone for controlling quality of ultimately justified output text. In preparing text for later justified output, the minimum space size is set at three units. The zone is variable in width and located within the measure and adjacent the right margin. The width of the zone is partially dependent upon the number of spaces on a line. During printing, the left side of the zone is tentatively established when the residue is equal to, or less than, 36 units. Then, when the residue is equal to, or less than, the number of spaces times nine, the system will cause a bell to ring. This will alert the operator that the zone has been entered and if printing is thereafter terminated, the maximum space size will not exceed 12 units during later justified output.

Abstract: A system for positioning final copy printed text, upon a first printing, at a specified location on a line in a format determined by input keying. The location can be a blank block on a form to be filled in. After initial setup and during any input or output operation, a final copy printed text mode can be entered by an operator and stored. This will inhibit printing upon further keying until a carrier return is keyed following the text. The printer carrier is positioned through spacing, backspacing, tabbing, etc. relative to the left side of the block, and codes representative thereof are also stored. When the carrier is at the left side of the block, the keying of a variable space or character will define a tentative format and this location, and a variable space or character code will be stored. Then the text is keyed and stored.

Abstract: A system for printing a plurality of sequentially stored text columns in a side-by-side format. Corresponding lines from each column are printed out on a print line in operator defined locations. After a line from one of the columns is printed on a print line, the carrier caused to escape, and any corresponding lines from succeeding columns are printed on the same line prior to causing a printer carrier return.