Nikolay Kostov's Blog

Short video about representing text in computers. The video is recorded in 2021 in Bulgarian and is part of "Mathematics for Programmers - part 1" course.

Topics covered:

• How computers represent text
• ASCII
• Unicode
• UTF-8
• Base64

Short video about evaluating mathematical expressions using C# and stacks. The video is recorded in 2019 in Bulgarian.

Lecture about quality assurance and planning and tracking software quality. The video is recorded in 2015 in Bulgarian.

Topics covered:

• What Is Software Quality?
• Causes of Software Defects
• What is Quality Assurance?
• Improving the Software Quality

Lecture about software engineering fundamentals in C#. The video is recorded in 2014 in Bulgarian.

Topics covered:

• Software engineering overview
  • Requirements
  • Design
  • Construction
  • Testing
  • Project management
• Development methodologies overview
  • The waterfall development process
  • Heavyweight methodologies
  • Agile methodologies, SCRUM and XP

Lecture about SOLID and other principles in C#. The video is recorded in 2015 in Bulgarian.

Topics covered:

• SOLID Principles
  • SRP – Single Responsibility Principle
  • OCP – Open/Closed Principle
  • LSP – Liskov Substitution Principle
  • ISP – Interface Segregation Principle
  • DIP – Dependency Inversion Principle
• DRY – Don't Repeat Yourself
• YAGNI – You Aren't Gonna Need It
• KISS – Keep It Simple, Stupid