An IP address or IP number is a unique number that's used by the Internet protocol (IP) to identify a computer or 'host' that is connected to the Internet. The present version of the IP address, IPv4 (IP version 4) is containing a 32-bit value that is limiting the total. A public Internet Protocol address is globally unique, and only assigned to a unique device. The are two types of Internet Protocol (IP) addresses: Public and Private. As defined above what a public IP address it, but to clarify, a private IP address assigned to devices within your private space without letting them directly exposed to the Internet. Public ip of my system -.


An operating system (OS) is system software that manages computer hardware, software resources, and provides common services for computer programs. Time-sharing operating systems schedule tasks for efficient use of the system and may also include accounting software for cost allocation of processor time, mass storage, printing, and other resources. GIS is a collection of computer-based tools for organizing information from a variety of data sources to map and examine changes on Earth. It is designed to capture, store, manage, analyze, and visualize all types of geographical data, and allow for the integration and collective analysis of. Quantum GIS provides you with a Geographic Information System (GIS) to help you quickly and easily create or just browse existing map data. The application also supports a wide array of vectors.

QGIS stands for quantum geographic information system. It’s a free and open source software. Use it to map and better understand your geospatial data.

The Early History of GIS

The field of geographic information systems (GIS) started in the 1960s as computers and early concepts of quantitative and computational geography emerged. Early GIS work included important research by the academic community. Later, the National Center for Geographic Information and Analysis, led by Michael Goodchild, formalized research on key geographic information science topics such as spatial analysis and visualization. These efforts fueled a quantitative revolution in the world of geographic science and laid the groundwork for GIS.


The First GIS

Roger Tomlinson’s pioneering work to initiate, plan, and develop the Canada Geographic Information System resulted in the first computerized GIS in the world in 1963. The Canadian government had commissioned Tomlinson to create a manageable inventory of its natural resources. He envisioned using computers to merge natural resource data from all provinces. Tomlinson created the design for automated computing to store and process large amounts of data, which enabled Canada to begin its national land-use management program. He also gave GIS its name.

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The Harvard Laboratory

While at Northwestern University in 1964, Howard Fisher created one of the first computer mapping software programs known as SYMAP. In 1965, he established the Harvard Laboratory for Computer Graphics. While some of the first computer map-making software was created and refined at the Lab, it also became a research center for spatial analysis and visualization. Many of the early concepts for GIS and its applications were conceived at the Lab by a talented collection of geographers, planners, computer scientists, and others from many fields.


Esri is Founded

In 1969, Jack Dangermond—a member of the Harvard Lab—and his wife Laura founded Environmental Systems Research Institute, Inc. (Esri). The consulting firm applied computer mapping and spatial analysis to help land use planners and land resource managers make informed decisions. The company’s early work demonstrated the value of GIS for problem solving. Esri went on to develop many of the GIS mapping and spatial analysis methods now in use. These results generated a wider interest in the company’s software tools and work-flows that are now standard to GIS.


GIS Goes Commercial

Quantum Information Technology

As computing became more powerful, Esri improved its software tools. Working on projects that solved real-world problems led the company to innovate and develop robust GIS tools and approaches that could be broadly used. Esri’s work gained recognition from the academic community as a new way of doing spatial analysis and planning. In need of analyzing an increasing number of projects more effectively, Esri developed ARC/INFO—the first commercial GIS product. The technology was released in 1981 and began the evolution of Esri into a software company.