Abstract: An interactive computer system having one or more user terminals connected to at least one host server via a network system and having a printer connected to one of the host servers includes a print manager interface in each user terminal that detects output generated by an application, prepares the output for transmission to a host server, and initiates transmission of the prepared output in accordance with the network protocol, and also includes a host printer interface in each host server that receives prepared output from a user terminal and creates a host print process that initiates printing of the prepared output at a printer designated by the application process.

Abstract: Navigation through application program operation, application window configuration, and application program symbol input is provided in a navigator function which executes in response to key strokes designating key representations of application programs and commands.

Abstract: In a distributed data access system in which a plurality of computers maintain and provide access to a database of stock exchange information, 1-for-N redundancy is provided by operating one computer in a standby mode, while the other computers operate online. Each online computer provides access to the database to a predefined set of a geographically broad plurality of users. The set of users for any online computer is defined by user connectivity data structures that define connectivity between the user set and the computer. When a failure is detected in any one of the computers, the user connectivity data structures of that computer are provided to the standby computer, which then assumes all operations of the failed computer. An arbitrator computer facility observes the health and determines the status of each of the computers, including the standby computer, and controls the transfer of online status from a failed computer to the standby computer.

Abstract: In a distributed data access system in which a plurality of computers maintain and provide access to a database of stock exchange information, 1-for-N redundancy is provided by operating one computer in a standby mode, while the other computers operate online. Each on-line computer provides access to the database to a predefined set of a geographically broad plurality of users. The set of users for any on-line computer is defined by user connectivity data structures that define connectivity between the user set and the computer. When a failure is detected in any one of the computers, the user connectivity data structures of that computer are provided to the standby computer, which then assumes all operations of the failed computer. An arbitrator computer facility observes the health and determines the status of each of the computers, including the standby computer, and controls the transfer of online status from a failed computer to the standby computer.

Abstract: A field installable capacitor network assembly screws onto an externally threaded coaxial connector and makes contact with signal ground. The network assembly also makes a reliable low impedance contact with the chassis wall as it screws toward the coaxial connection, using protrusions extending from rear face of the network assembly to cut through any insulating coat covering of the chassis wall and make contact with the wall. A small capacitor inside a defined region of an annular body of insulating material secured between two sleeve shaped conductors respectively in contact with the connector and the chassis wall makes an electrical connection between these surfaces.