Computer science is one of the most important subjects in a world where technology and computers are everywhere around us.
But computer science is not that simple. The world you are living in today, along with the technologies and apps you depend on every day are just a reflection of something much bigger happening behind the scenes. The development of complex mathematical algorithms and the discovery of new computing sciences, led by innovative computer scientists and developers worldwide, has resulted in these new technologies and tools that we use every day to make our lives easier, in addition to other uses in manufacturing, science, engineering, economics, medicine, and all different fields.
Now, because you chose to read this article, then for sure, you are interested in what computer science actually is and how to study it. That is why we have prepared a full all-in-one guide to help you kickstart your journey, beginning with some important studying tips, followed by the best websites and books you can use to know more about computer science in the easiest possible way.
Nowadays, universities are no longer a requirement to study a particular subject. All the learning resources you need are available online, from courses, to lectures, books, and more. All you need is to know the right scientific methodologies of learning, and not be distracted by the wrong ways used by most people. In this article, we’ll explain those methodologies and how to practice them properly.
And if you want to buy courses and books online, but you do not have a bank account or credit card, we have got you covered! In the end of this guide, we will explain how you can shop online without a bank account using CASHU.
Let us start!
1. Important Tips You Should Follow When Learning Computer Science
Before you begin studying, there is a number of very important tips you should follow in order to get the most out of your learning experience:
1. Both Theory and Practice are Important. Focus on the Theoretical Fundamentals, and Practice a Lot at the Same Time
There are 2 types of computer scientists and programmers, those who correctly understand the theoretical fundamentals of math, algorithms, and computing, then apply what they have learned using the available tools and programming languages, and those who learn only through the practice of high-level tools and languages.
The first type knows exactly what they do, why they do it, and how to do it. The second type knows only how to use a tool or programming language at a surface level, rather than the underlying foundations.
That being in mind, you’ll see all programmers know how to create a website or mobile application using some skills and ready-to-use libraries, but only few people know how to solve a hard computational problem from scratch, or innovate a new tool that solves people’s problems.
Remember that the real purpose of learning computer science is to solve real-world problems and advance people’s lives using computation. Programming is all about creating mathematical algorithms to solve problems. This is why you should focus on the mathematical fundamentals, but at the same time, you should practice a lot and keep developing your practical skills. Both are extremely important.
2. Do Not Specialize in a Single Field of Expertise. Be a Polymath
There is bad advice that you will hear a lot these days that says that in order to be a successful person, you have to specialize and become proficient in a single field of expertise.
But actually, all great inventors and scientists through the history were and are polymaths. Charles Babbage, the originator of the concept of a digital programmable computer, was a mathematician, a philosopher, and a mechanical engineer. Ada Lovelace, the inventor of the first algorithm to be used by a computer, was a great mathematician and a writer. Muhammad al-Khwarizmi, one of the great innovators in history, was a mathematician, an astronomer, and a geologist. Do not forget the modern polymaths that live with us right now, like Elon Musk, who is a physicist, a rocket scientist, an engineer, a programmer, and a successful businessman.
So, success is not to be an application developer only or an AI developer only. Do specialize in multiple fields and disciplines, so you can invent something new in the future that is based on combining multiple sciences together.
3. Do Not Procrastinate
It is said that “Doing a little bit every day is more important than doing a lot someday”, and that is truly right.
Consistency is the key. Make a reasonable plan for learning and stick to it. Practice every day. Do not skip any learning routine you have already set. Otherwise, you will forget what you have learned before.
4. Rely on Multiple Learning Resources
Do not rely on a single learning resource. Watch some lectures by professors, watch some full-length courses, and read a lot of books, as all these resources complement each other. Maybe you’ll need some details that you will only find in textbooks. Maybe there is something that you will only understand if you watched a lecture by a university professor, and so on.
5. Practice Problem-Solving a Lot
The ability to solve hard problems and create efficient algorithms is what differentiates the normal programmer from the intelligent one.
You should practice this skill a lot in order to become a clever programmer, by solving questions that requires a lot of systematic and creative thinking. There is a lot of websites that host a huge number of problems and challenges that you can solve using code. These sites also host a number of worldwide problem-solving contests that thousands participate in. Examples are Codeforces, CodeWars, and HackerRank.
6. Plan a Learning Roadmap Like Those Used in Universities
One of the great things about universities is that you study according to a well-planned curriculum. You begin with essential math and programming, then you learn data structures and algorithm design, then you learn web development, and so on.
Every subject has its requirements and objectives. So, before you begin studying, it is good to visit some well-known universities’ websites and take a look at their curriculums.
7. Study with Your Friends
Do you have friends that also want to learn computer science with you? Great! It is good not to learn alone, but study with your friends, work on projects together, and share each others experiences.
And finally, we recommend you to watch the TEDx talk by the programmer and author Scott Young. This creative man has managed to complete an entire computer science curriculum within only 12 months, by depending on textbooks and lectures by MIT professors. Watch the talk now!
2. What are the Fields of Computer Science?
There is a huge number of computer science fields you can learn from. All of them have a theoretical and practical part, and each one of them has its own applications. All of them have the same purpose, that is to create proper algorithms to solve the world’s problems and make our lives easier.
But, before anything, you must know what computer science fundamentally is and how it was created. So, take a look at this Wikipedia article that will give you a great overview about computer science. Read the article here.
Here is a list of most computer science fields:
1. Computation theory
2. Computer architecture
3. Web development
4. Database systems
5. Visual programming
6. Operating systems
7. Computer networks
8. Computer security and cryptography
9. Human-computer interaction
10. Software engineering and application development
11. Artificial intelligence
12. Sound processing
13. Computer graphics
14. Computer vision
15. Distributed computing
17. Scientific computing
18. Quantum computing
3. The Best Websites for Studying Computer Science and Programming
Knowledge is no longer acquired exclusively through universities. You can now learn whatever you want, and especially computer science, through online courses and lessons. Many of them are even free! And yet they are exciting, advanced, and provided to you by the world’s largest companies and learning institutions.
So, here are the best websites ever for learning and studying computer science:
Wikipedia is one of the best resources for learning computer science.
It is great to get an overview and learn the basics of computer science, its fields, and some specific subjects through Wikipedia. You can also find articles about some complex subjects that you can refer to.
Official Website ❯
edX is one of the best websites you can learn computer science and other disciplines through its courses. It was created in 2012 by MIT and Harvard universities, and currently, it offers more than 3,000 courses, and more than 33 million people are registered through it.
The courses offered are very professional and provided by the most well-known universities in the world, and most of them are free!
Official Website ❯
Coursera is a very well-known online courses website and one of the best ones available. It was started in 2012, and now it has more than 4,000 courses in all fields, offered by the largest institutions like Google, IBM, and Stanford University.
If you want to buy courses from this website, you can use Majd Cards from CASHU to pay on all your favorite websites, without the need for a bank account. We’ll let you know how by the end of this article!
Official Website ❯
Udacity is an online courses website specialized in computer science only. It was created in 2012, and it has gained a lot of popularity recently.
And again, if you want to buy courses from this website, you can use Majd Cards from CASHU to pay on all your favorite websites, without the need for a bank account. We’ll let you know how by the end of this article!
Official Website ❯
5. Open Source Society University
This is a very interesting project !
Open Source Society University is a project hosted on GitHub that provides you with a full computer science studying path, using only videos from YouTube, edX, and other websites. We highly recommend it for you.
Official Website ❯
FreeCodeCamp is a fully free website that teaches you practical coding using popular programming languages and tools for web development, data science, application development, and more.
Official Website ❯
7. Khan Academy
Khan Academy is a very popular website around the world. It provides you with a variety of interesting courses of all subjects explained to you by professional instructors. It is perfect if you are a beginner.
Official Website ❯
Udemy is one of the largest and oldest learning websites that everybody knows! It was created in 2010 and it hosts more than 155,000 courses in every subject you can think of. The website is known for the diversity of courses hosted by it.
Official Website ❯
Yes, YouTube! Everything you want to learn can be found on YouTube. There are dozens of free lessons of all types and levels, so if you wanted to learn something but you found it hard to understand, you can just refer to YouTube videos and watch some tutorials by many teachers.
Official Website ❯
If you are a school student and you want to learn computer science and coding from scratch, code.org is your place to go!
This website was founded in 2013 for a good cause. Back in 2013, only 1 out of 4 schools in the USA taught computer science. Code.org wanted to spread the coding studies and close this gap. Now, more than 40% of American school students have a Code.org account which is, when you think about it, is truly impressive.
Coding, as a way of learning, is very important. It is not only for computer experts or programmers, because coding simply teaches you how to think, and how to solve problems in a creative and unique way. This is why you should start as soon as possible and begin investing in learning how to code.
Official Website ❯
4. The Best Textbooks for Studying Computer Science
Textbooks are very essential for studying computer science, as they provide you with a huge amount of information and specific details that you cannot find in courses and lectures. That being said, these are the best introductory textbooks that you can begin your computer science journey with.
And in the end of this article, we will explain how you can buy you favorite books using CASHU without the need for a bank account.
This is a list of the best books you need to study to know the essentials of computer science. Whatever the field you want to specialize in, you need to learn the basics. Remember that these books are just the start, you can then read more and more to be an expert in these fields.
Computer Science An Overview
Discrete Mathematics and its Applications
Introduction to Probability
Introduction to Linear Algebra
Physics for Scientists and Engineers
Foundations of Physically Based Modeling & Animation
4. Programming Essentials
C How to Program (with an introduction to C++)
5. Data Structures and Algorithms
Data Structures and Algorithms in C++
Hands-On Data Structures and Algorithms with Python
6. Web Development
Learning Web Design
7. Visual Programming
Hands-On GUI Programming with C++ and Qt5
Mastering GUI Programming with Python
8. Algorithm Design
Introduction to Algorithms
9. Digital Logic Design
10. Computation Theory
Introduction to the Theory of Computation
11. Database Systems
Fundamentals of Database Systems
Learn SQL Database Programming
12. Computer Organization and Architecture
Modern Computer Architecture and Organization
13. Computer Networks
Wireless Communication Networks and Systems
14. Computer Security and Cryptography
There is a wide variety of elective fields you can specialize in and become an expert. However, as we said before, it is much better to specialize in multiple fields. Remember that these books are just the start, and you can then read more and more to be an expert in any one of these fields.
1. Assembly Language Programming
Modern X86 Assembly Language Programming
2. Operating Systems
Operating System Concepts
Linux System Programming
3. Human-Computer Interaction
Learn Human-Computer Interaction
4. Systems Analysis and Design
Essentials of Systems Analysis and Design
5. Software Engineering
6. Mobile Application Development
Android Programming for Beginners
Android Programming with Kotlin for Beginners
iOS 14 Programming Fundamentals with Swift
7. Data Science Essentials
Data Science from Scratch
8. Artificial Intelligence
Artificial Intelligence: A Modern Approach
AI Crash Course
9. Natural Language Processing
Practical Natural Language Processing
Hands-On Python Natural Language Processing
10. Distributed Computing and Blockchain
11. Computer Graphics
The Complete Guide to Blender Graphics
12. Digital Image Processing
Digital Image Processing
13. Game Development
Beginning C++ Game Programming
Game Development Projects with Unreal Engine
14. Computer Vision
Computer Vision: Algorithms and Applications
Learning OpenCV 4 Computer Vision with Python 3
15. Virtual and Augmented Reality
Creating Augmented & Virtual Realities
16. Sound Processing and Programming
A Digital Signal Processing Primer
Sound Analysis and Synthesis with R
Learn Robotics Programming
Hands-On ROS for Robotics Programming
18. Compiler Design
Introduction to Compiler Design
19. Scientific Computing
Scientific Computing for Scientists and Engineers
20. Quantum Computing
Quantum Computing: An Applied Approach
5. How to Buy Courses and Books Without a Bank Account nor Credit Card
Are you looking for the easiest way to buy courses and books without the need for a bank account nor a credit card? Get to know CASHU now!
CASHU is the first and largest e-wallet in the Middle East and North Africa used for online shopping and conducting financial transactions without the need for a bank account nor a credit card. Currently, it serves more than 2.7 million CASHU users in the region.
CASHU offers multiple solutions to paying online, one of these solutions is Majd Joy Plus card. It is a virtual prepaid Mastercard which you can use on Facebook and any websites in the world that accept Mastercard without the need for a bank account nor a credit card!
Majd Joy Plus
Use this prepaid virtual Mastercard to pay online up to $500 daily and $5,000 monthly, and secure your transactions with the 3-D Secure feature. It’s the perfect card for online advertisers and everyday shoppers!
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It is crucial to invest your time and energy in learning computer science and programming in order to join and be a part of the huge technology revolutions happening in the world right now.
Fortunately, all you need to learn is available online for free or for a very low price, whether it is lectures, courses, or books.
Do not forget that all you have to do to buy your learning resources is getting a Majd Joy Plus card from CASHU and use it anywhere, without the need for a bank account nor credit card!