core-cs-os-networks-dbms

Core CS Notes for Operating Systems (OS), Computer Networks (CN) and Database Management Systems (DBMS)

Last Minute Notes and Top Interview Questions and Answers

• Operating Systems (OS) Last Minute Notes
• Top Operating System Interview Questions and Answers (2022)
• DBMS Last Minute Notes

Operating Systems (OS) Notes

• Introduction to Operating Systems (OS)

• [Processes and Threads

  Operating Systems (OS)](https://workat.tech/core-cs/tutorial/processes-and-threads-os-6iboki1s2y3t)

• Banker’s Algorithm in Operating System (OS)

• [Resource Allocation Graph (RAG)

  Operating Systems (OS)](https://workat.tech/core-cs/tutorial/resource-allocation-graph-rag-os-lz5lltbbl8u7)

• Memory Management in Operating System (OS)
• Logical and Physical Address in Operating System (OS)
• Paging in Operating System (OS)
• Segmentation in Operating System (OS)
• Virtual Memory in Operating System (OS)
• Page Replacement Algorithms in Operating Systems (OS)
• File Systems in Operating System (OS)
• Disk Scheduling Algorithms in Operating Systems (OS)

Computer Networks (CN) Notes

• Introduction to Computer Networks (CN)
• OSI Reference Model
• TCP/IP Reference Model
• TCP 3-Way Handshake
• Domain Name System (DNS)
• What happens when you open a website on your browser?

Database Management Systems (DBMS) Notes

• Introduction to Database Management Systems (DBMS)
• Relational Algebra in DBMS
• Database Keys
• Database Normalization - Normal Forms
• Database Joins - Inner Join, Outer Join
• Database Indexing
• Database Indexing - B Tree and B+ Tree

• [SQL vs NoSQL: Should we use SQL or NoSQL?

  Databases](https://workat.tech/system-design/article/sql-vs-nosql-databases-system-design-agfj7wqna8py)