Code for selenium

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Installing Selenium from scratch involves setting up the Java environment, installing the Eclipse IDE, and finally configuring the Selenium libraries. As of 2026, Selenium 4 is the industry standard. Below is the step-by-step guide to get you up and running. Phase 1: Install Java (JDK) Selenium is a Java-based library, so you must have the Java Development Kit (JDK) installed. Download: Go to the Oracle JDK Downloads or Adoptium (OpenJDK). Download the latest LTS version (e.g., JDK 21 or 25). Install: Run the installer and follow the prompts. Set Environment Variables (Windows): Search for "Edit the system environment variables" in your Start menu. Click Environment Variables. Under System Variables, click New and add JAVA_HOME with the path to your JDK folder (e.g., C:\Program Files\Java\jdk-21). Find the Path variable, click Edit, and add %JAVA_HOME%\bin. Verify: Open Command Prompt and type java -version. You should see the version details. Phase 2: Install Eclipse IDE Dow...
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Introduction to computer system

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ITschoolsuraj
 GQ.write note on computer system 
Ans: 
  • Computer System Computer is an electronic device that can be instructed to carry our sequences of arithmetic or logical operations .
  • automatically via computer programming Modern computers have the ability to follow generalized sets of operations, called programs. These programs enable computers to perform an extremely wide range of tasks. 
  • Computers are used as control systems for a wide variety of industrial and consumer devices. 
  •  Early computers were only conceived as calculating devices. 
  • Since ancient times, simple manual devices like the abacus helps people in doing calculations. 
  • Early in the Industrial Revolution, some mechanical devices were built to automate long tedious tasks, such as guiding patterns for looms. 
  • More sophisticated electrical machines did specialized analog calculations in the early 20th century. 
  • The first digital electronic calculating machines were developed during World War II. The speed, power, and versatility of computers have been increasing dramatically ever since then. 
  • The history of computer begins in the 19th century. Charles Babbage was an English mathematics professor, he designed the Analytical Engine. Design made by him was the basic framework of the today's computer. Computers can be classified into three generations. 
First generation: 1937-1946-
  • First electronic digital computer was built by Dr. John V. Atanasoff and Clifford Berry during 1937. 
  • It was named as the Atanasoff-Berry Computer ie ABC. Development of other computers continued until in 1946,
Second generation: 
  • In second generation first wices like the computer was introduced in 1951 for commercial purpose. In the computer world International Business Machine which is also known as IBM made theu mark Many computer programming languages were developed and computers had memory and operating systems
Third generation :
  • 1963 - present - Integrated circuit was developed in third generation. Due to this, computer became more dominant and more trustworthy and they are able to run many different programs at the same time. 



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