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(ER model)

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  Name : Ahmed Ameen Althulaia Roll no : 4 GR no : 11911223 Group no : 2   Introduction The ER Model represents the Entity-Relationship Model, also known as a high-level data model that reflects relationships between business sets.ER Model is used to describe businesses and relationships between them.   It helps developers to design conceptual design or not to specify system intelligent design from a data point of view.The ER model describes the design of a site with the help of a diagram, also known as a Business Diagram (ER Diagram).   ER Diagram The ER diagram shows the relationship between business sets. A business set is a group of similar businesses and these businesses may have characteristics. According to the DBMS, a business is a table or table attribute on a website, so by showing the relationship between tables and their attributes, the ER diagram shows the complete logical structure of a website. Let’s take a look at a simple ER d...
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JSP and Servlet in Java

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  AHMED AMEEN   ROLL NO .04 TY_IC_GRP_2 Client-Server Architecture When a client computer sends a data request to the server through the internet, the server acknowledges the request and provides the needed digital data to the client.   Client : A client is a person or organization  who uses a certain service. A client is a computer in the digital world that may receive information or use a specific service from the service providers. Servers : Similarly, the term “server” refers to a person or medium who serves something. In the digital world, a server is a distant computer that delivers data or access to certain services. Servlet A Java programme that runs on a Web server is known as a Servlet. They act as a link between a web browser’s request and the server’s response. A servlet’s life cycle consists of three primary methods. 1.      The init() method 2.     The service() method 3.     T...
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5G cellular network

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  WHAT IS 5G? 5G is the 5th generation of mobile networks, a significant evolution of todays 4G LTE networks.  5G has been designed to meet the very large growth in data and connectivity of today’s modern society, the internet of things with billions of connected devices, and tomorrow’s innovations. 5G will initially operate in conjunction with existing 4G networks before evolving to fully standalone networks in subsequent releases and coverage expansions. In addition to delivering faster connections and greater capacity, a very important advantage of 5G is the fast response time referred to as latency. Latency is the time taken for devices to respond to each other over the wireless network. 3G networks had a typical response time of 100 milliseconds, 4G is around 30 milliseconds and 5G will be as low as   1 millisecond. This is virtually instantaneous opening up a new world of connected applications. How does it work? With 5G, signals run over new radio freque...
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Advancements in PLC

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What is a PLC? Programmable Logic Controllers (PLC) continue to emerge as new technologies are added to their capabilities. The PLC started out as a substitute for transferring banks. Gradually, various deceptive and logical deceptive tasks were added. Today they are the brain of many automated systems, processes and specialized equipment. PLCs now integrate smaller cases, faster CPUs, networks and a variety of internet technologies. You can think of PLC technology as a small industrial computer that is very specialized in reliability in the factory environment. At its core, PLC monitors digital and analog sensors and switches (inputs), learns its control system, performs mathematical calculations and consequently controls various hardware (output) such as valves, lights, relays, servo motors , etc. time frame in milliseconds. Latest trends in industrial automation Recent industry automation trends include increased data usage, increased use of PLCs, PACs, and increased cloud-ba...
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