Youtube, books, tutorials, and blogs are all great sources of learning about System Design. In this series of blog posts, I will primarily be learning from Yogita Sharma and Gaurav Sen.
In Introduction to System Design | System Design Tutorials | Part 1 | 2020 - Yogita Sharma describes System Design as: "Architecture or series of technologies -> that serve a set of users -> to fulfil a set of requirements".
What is a System?
- Real world systems include hotels, hospitals, train stations, etc.
- Computing systems include WhatsApp, Snapchat, Netxlifx, etc.
- Components of real world systems include: walls, ceiling & floor, electrical systems, water supply, lighting, heating systems, etc.
- Components of computing systems include: databases, servers, caches, applications, message queues, etc.
What is Design?
- Understanding the needs of the users
- Selecting the right components
- Working within constraints
- The combination of the above is what makes up design
- Design of two story building and skyscraper will be different, even though similar components may be used.
- Being able to scale systems is why System Design as a discipline has evolved
System Design
- Designing large scale systems is done by a team
- It requires understanding of the components, their strengths and weaknesses
- What the trade offs are and when to best use each component
- How to build a system that scales well within specific constraints
Yogita's YouTube course is about looking at each component, their strengths and weaknesses. Then to combine them and build large scale computing systems.
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