Boots – shoes – and leggings
Patent
1995-01-13
1997-02-25
Gordon, Paul P.
Boots, shoes, and leggings
39520008, G05B 1500, H01J 1300
Patent
active
056064934
DESCRIPTION:
BRIEF SUMMARY
FIELD OF THE INVENTION
The invention concerns a system for running a remote task on a remote computer requested by a local task running on a local computer, the remote computers being connected in a network with the local computer, wherein the local computer contains a local data transmission agent, said local data transmission agent transmitting requests to the remote computer to initiate operation of the remote task and transmitting and receiving data during operation of the remote task, and the remote computer contains a remote data transmission agent, said remote data transmission agent receiving requests from the local computer to initiate operation of the remote task and transmitting and receiving data during operation of the remote task.
BACKGROUND ART
The prior art discloses a variety of computer networks. The IBM System Journal, Volume 22, Number 4, 1983 includes a series of articles devoted to a review of the IBM System Network Architecture (SNA). On page 345 of that publication a network is defined as "a configuration of terminals, controllers, and processors and the links that connect them". When such a configuration supports user applications involving data processing and information exchange and conforms to the specifications of the IBM System Network Architecture it is called an SNA network. Essentially SNA defines logical entities that are related to the physical entities in a network and specifies the rules for interactions among these logical entities.
The logical entities of an SNA network include network addressable units and the path control network that connects them. Network addressable units communicate with one another using logical connections called "sessions". The three types of Network Addressable Units (NAUs) are the Logical Unit (LU), the Physical Unit (PU), and the System Services Control Point (SSCP) which are defined as follows:
Logical Unit (LU). An LU is a port through which end users may access the SNA network. An end user uses an LU to communicate with another end user and to request services of a System Services Control Point (SSCP).
Physical Unit (PU). A PU is a component that manages the resources of a node in cooperation with an SSCP.
System Services Control Point (SSCP). This is a focal point for configuration management, problem determination and directory services for end users. SSCPs may have sessions with LUs and PUs. When such a session occurs, the LU or PU is in the domain of the SSCP. In addition to sessions with LUs and PUs, SSCPs may also communicate with each other to coordinate the initiation and the termination of sessions between Logical Units and in different domains.
From the hardware standpoint, a simple network comprises a host system having a processing unit and a plurality of local terminals that are assigned to individual users. The local terminals are selectively connectable to the host system through one or more communication links. These links may comprise merely a coaxial cable, a dedicated telephone line, or in some cases, a satellite communication link.
The host processing unit mostly an operating system which supports the creation of a large number of virtual machines, each of which is assigned, on request, to an end user. A virtual machine processes tasks for the assigned end user, by time sharing the host processor hardware of the host system. Some host systems may include more than one hardware processor so that true simultaneous processing occurs at the host since a plurality of processors are running in parallel. More often, there is merely one hardware processor that "concurrently" runs data processing tasks for the virtual machines by a time sharing technique. This is transparent to the end users at the terminals.
Two general types of terminals are employed in data processing networks. The first is referred to as a "dumb terminal" in that it comprises merely a keyboard and a display device and little or no processing capability other than that required to make a connection with the host system. The second type of terminal is r
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Duscher Reinhard
Gargya Tony
Kurth Gerold
Gordon Paul P.
International Business Machines - Corporation
Kinnaman, Jr. Wm. A.
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