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Packet Tracer is a cross-platform visual simulation tool designed by Cisco Systems that allows users to create network topologies and imitate modern computer networks. The software allows users to simulate the configuration of Cisco routers and switches using a simulated command line interface. Packet Tracer makes use of a drag and drop user ...
The software is available to students who are taking Cisco Network Academy courses, which Cisco has cited as having over 800,000 students (and has also cited as having over 700,000 students). Although the software may have restricted distribution, this proprietary software is therefore notable. Presumably it is up to a class instructor to ...
Network topology is the arrangement of the elements (links, nodes, etc.) of a communication network. [1] [2] Network topology can be used to define or describe the arrangement of various types of telecommunication networks, including command and control radio networks, [3] industrial fieldbusses and computer networks.
The language was first specified in detail in the manual "PL/I Language Specifications. C28-6571", written in New York in 1965, and superseded by "PL/I Language Specifications. GY33-6003", written by Hursley in 1967. IBM continued to develop PL/I in the late sixties and early seventies, publishing it in the GY33-6003 manual.
Variable speed pull-chain. This setup is similar to the variable-speed dial discussed above, except that a "dual chain" setup is used to turn the potentiometer shaft. A pull-chain present along with the variable-speed control; the dial can be set in one place and left there, with the pull-chain serving only to turn the fan on and off.
Android Oreo (codenamed Android O during development) is the eighth major release and the 15th version of the Android mobile operating system. It was initially unveiled as an alpha quality developer preview in March 2017 and later made available to the public, on August 21, 2017. It contains a number of major features, including notification ...
Traditionally, 8-1-1 has been a direct line to the business office of the telephone company providing service on the line. From there, one may perform some or all of the following operations: Such services have been merged into 6-1-1. Mobile phones sometimes use 6-1-1 for this purpose as well. Many telephone companies, including Canada's Telus ...
Flash drives can be set up to automatically launch stored presentations, websites, articles, and any other software immediately on insertion of the drive using the Microsoft Windows AutoRun feature. [66] Autorunning software this way does not work on all computers, and it is normally disabled by security-conscious users.