Harvard University offers free online courses for "programmers"

Harvard University offers free online courses for programmers basically for computer science students or job seekers.

Harvard University, one of the premium educational institutions in the US, has announced many online short-term courses for programmers and computer science scholars to keep learning during the COVID-19 pandemic. Here are the details of 8 online courses specially crafted by Harvard University that are free and programmers from all around the world can join. These courses are FREE

yes you read it right these courses are 100% free of cost online courses from a esteemed Harvard University

Here is free courses list

1. CS50: Introduction to Computer Science

Duration - 11 weeks
Time Commitment - 10-20 hours per week

An entry-level course, Introduction to Computer Science teaches students how to think algorithmically and solve problems efficiently. Topics include abstraction, algorithms, data structures, encapsulation, resource management, security, software engineering, and web development. Languages include C, PHP, and JavaScript plus SQL, CSS, and HTML. Problem sets inspired by real-world domains of biology, cryptography, finance, forensics, and gaming.

2. CS50's Introduction to Artificial Intelligence with Python

Duration - 7 weeks
Time Commitment - 10-30 hours per week

This course explores the concepts and algorithms at the foundation of modern artificial intelligence, diving into the ideas that give rise to technologies like game-playing engines, handwriting recognition, and machine translation. Through hands-on projects, students gain exposure to the theory behind graph search algorithms, classification, optimization, reinforcement learning, and other topics in artificial intelligence and machine learning as they incorporate them into their own Python programs. By course’s end, students emerge with experience in libraries for machine learning as well as knowledge of artificial intelligence principles that enable them to design intelligent systems of their own.

3. CS50's Introduction to Game Development

Duration - 12 weeks
Time Commitment - 6-9 hours per week

Via lectures and hands-on projects, the course explores principles of 2D and 3D graphics, animation, sound, and collision detection using frameworks like Unity and LÖVE 2D, as well as languages like Lua and C#. By class’s end, you'll have programmed several of your own games and gained a thorough understanding of the basics of game design and development.

4. CS50's Web Programming with Python and JavaScript

Duration - 12 weeks
Time Commitment - 6-9 hours per week

The course includes topics like database design, scalability, security, and user experience. Through hands-on projects, you'll learn to write and use APIs, create interactive UIs, and leverage cloud services like GitHub and Heroku. By course's end, you'll emerge with knowledge and experience in principles, languages, and tools that empower you to design and deploy applications on the Internet.

5. CS50's Mobile App Development with React Native

Duration - 13 weeks
Time Commitment - 6-9 hours per week

This course enables your transitioning from web development to mobile app development with React Native. The course introduces you to modern JavaScript (including ES6 and ES7) as well as to JSX, a JavaScript extension. Through hands-on projects, you'll gain experience with React and its paradigms, app architecture, and user interfaces. The course culminates in a final project for which you'll implement an app entirely of your own design.

6. Using Python for Research

Duration - 5 weeks
Time Commitment - 4-8 hours per week

This course bridges the gap between introductory and advanced courses in Python. While there are many excellent introductory Python courses available, most typically do not go deep enough for you to apply your Python skills to research projects. In this course, after first reviewing the basics of Python 3, we learn about tools commonly used in research settings. Using a combination of a guided introduction and more independent in-depth exploration, you will get to practice your new Python skills with various case studies chosen for their scientific breadth and their coverage of different Python features.

7. Data Science: Machine Learning

Duration - 8 weeks
Time Commitment - 2-4 hours per week

In this course, you will learn popular machine learning algorithms, principal component analysis, and regularization by building a movie recommendation system. You will learn about training data, and how to use a set of data to discover potentially predictive relationships. As you build the movie recommendation system, you will learn how to train algorithms using training data so you can predict the outcome for future datasets. You will also learn about overtraining and techniques to avoid it such as cross-validation. All of these skills are fundamental to machine learning.

8. Data Science: Productivity Tools

Duration - 8 weeks
Time Commitment - 1-2 hours per week

This course explains how to use Unix/Linux as a tool for managing files and directories on your computer and how to keep the file system organized. You will be introduced to the version control systems git, a powerful tool for keeping track of changes in your scripts and reports. The course also introduces you to GitHub and demonstrate how you can use this service to keep your work in a repository that facilitates collaborations.

You can register for these courses from the University website.

Tech Facts and Tricks

Today's blog is not only about but it include some cool tricks also. So lets get started

1. Do you know if you keep your batteries(cell) in freezer it will extend its battery life. This is due to the fact that every battery/cell work with a chemical reaction and we know that in very low temperature stops the chemical reaction. So it reduces the chemical reactions in a battery and hence extends the battery life. 

2. If you use your phone while charging it may not blow your battery but it affect the batter and decreases the life span of your phone battery it may stops working soon than normal life span of battery. This is the only reason the USB cable provided with phone is too short.

3. Its a fact that if you use Duracell battery in your device and the battery may leak and damage the product. Duracell company will replace the damage product if you provide the valid proof.

4. You use  ctrl + alt + delete key combination to get to task manager but if you press ctrl + shift + esc key combination you straight forward open task manager. Its quite easier then other combination.

5. Its a fact that most student use google.com to search essays, article etc to complete home work easily but if you use google scholar instead you get better results than google.com.

6. If you want cheap air lines tickets online use incognito mode(In Private browsing) instead of normal window because is you use normal window the website know you definitely going somewhere and want ticket so they increase the price. If you visit a website in incognito mode the prices remain constant as the any data is not tracked by the website.

7. If you're in an emergency situation and your phone battery is at 3% what you will do to save battery..most people simply switch off phone to save battery but its the biggest mistake as switching off and ON phone uses more battery. Instead you can turn On airplane mode of your phone to save battery.

8. Do you know you can use google as timer watch just type set timer hrs:min:sec(in numbers) and that's it, will will show notification.