1. NPTEL: NPTEL (National Programme on Technology Enhanced Learning) is a joint initiative of the Indian Institutes of Technology (IITs) and the Indian Institute of Science (IISc). It provides free online courses and study materials, including notes, for various engineering subjects, including PCM. You can visit the NPTEL website and search for "PCM Btech 1st semester" to find the relevant materials.
2. Academic Websites of IITs and NITs: Many Indian Institutes of Technology (IITs) and National Institutes of Technology (NITs) provide their study materials, including lecture notes, online. Visit the websites of your respective institution and check for the PCM Btech 1st semester course materials.
3. Online Educational Platforms: Various online educational platforms offer study materials for engineering subjects. Some popular platforms include Coursera, edX, and Udemy. You can search for "PCM Btech 1st semester" on these platforms to find relevant courses and notes.
4. Personal Websites and Blogs: Some professors and educators share their lecture notes and study materials on their personal websites or blogs. You can search online for websites or blogs dedicated to engineering subjects and check if they have materials for PCM Btech 1st semester.
5. Library Resources: Many university and college libraries have online databases and resources that provide access to digital study materials, including lecture notes. Check with your institution's library website to see if they have access to any relevant resources.
Remember, while downloading notes online can be helpful, it's essential to verify the credibility of the sources before using them as your primary study material.