1 Invest in New Zealand. 2  Opportunities & outlook. 3  Stability & security. 4  Rules & law. 5  Key contacts for investors.  Visa & investment options.
Freebase(0.00 / 0 votes)Rate this definition: OSIsoft. OSIsoft, LLC is a worldwide manufacturer of Application software for real-time data infrastructure solutions, called the PI System. Founded in 1980, OSIsoft, LLC is privately held and headquartered in San Leandro, CA, with operations worldwide.
OSI Reference Model The Open Systems Interconnection (OSI) model was developed by the International Organization for Standardization (ISO), and formalized in 1984. It provided the first framework governing how information should be sent across a network. The OSI model consists of seven layers, each corresponding to a specific network function: 7 Application 6 Presentation 5 Session 4 Transport 3 Network 2 Data-link 1 Physical Note that the bottom layer is Layer 1. Various mnemonics make it easier to remember the order of the OSI modelâs layers: 7 Application All Away 6 Presentation People Pizza