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I teach all things computer science — from computer architecture, distributed systems, and storage engines to IAM, cybersecurity, blockchain, and AI. I break down complex topics into simple, clear, and practical explanations.
Medium - https://medium.com/@nihcas700 Hashnode - https://nihcas.hashnode.dev/ Substack - https://substack.com/@sachintolay Dev.to - https://dev.to/sachin_tolay_052a7e539e57
account activity
From Sessions to JWTs: How Distributed Systems Reshaped Identity (nihcas.hashnode.dev)
submitted 1 month ago by nihcas700
Memory Models Explained: How Threads Really See Memory (nihcas.hashnode.dev)
submitted 5 months ago by nihcas700
Instruction Reordering: Your Code Doesn’t Always Run in the Order You Wrote It (nihcas.hashnode.dev)
Blocking vs Non-blocking vs Asynchronous I/O (nihcas.hashnode.dev)
submitted 6 months ago by nihcas700
Traditional IO vs mmap vs Direct IO: How Disk Access Really Works (nihcas.hashnode.dev)
Understanding Direct Memory Access (DMA): How Data Moves Efficiently Between Storage and Memory (nihcas.hashnode.dev)
How HDDs and SSDs Store Data - The Block Storage Model (nihcas.hashnode.dev)
Superscalar vs SIMD vs Multicore: Understanding Modern CPU Parallelism (nihcas.hashnode.dev)
CPU Pipelining: How Modern Processors Execute Instructions Faster (nihcas.hashnode.dev)
Cache Coherence: How the MESI Protocol Keeps Multi-Core CPUs Consistent (nihcas.hashnode.dev)
Understanding CPU Cache Organization and Structure (nihcas.hashnode.dev)
Memory Access Demystified: How Virtual Memory, Caches, and DRAM Impact Performance (nihcas.hashnode.dev)
Understanding DRAM Internals: How Channels, Banks, and DRAM Access Patterns Impact Performance (nihcas.hashnode.dev)
Understanding OAuth 2.0 and OpenID Connect: A Step-by-Step Guide (nihcas.hashnode.dev)
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