Systems, Backend & Core CS – Vaibhav Jha https://www.vaibhavjha.tech//blog Technical blogs by Vaibhav Jha on systems programming, backend engineering, software architecture, SSD, RAM, ALU, and core computer science concepts. en Fri, 22 May 2026 18:07:16 GMT 2k22.cscys.2211080@gmail.com (Vaibhav Jha) 2k22.cscys.2211080@gmail.com (Vaibhav Jha) https://www.vaibhavjha.tech//images/avatar1.jpg Systems, Backend & Core CS – Vaibhav Jha https://www.vaibhavjha.tech//blog Why You Can't Download Netflix Videos: A Deep Dive into DRM https://www.vaibhavjha.tech//blog/netflix-drm-widevine https://www.vaibhavjha.tech//blog/netflix-drm-widevine Sat, 11 Apr 2026 00:00:00 GMT Security 2k22.cscys.2211080@gmail.com (Vaibhav Jha) Designing a Scalable URL Shortener https://www.vaibhavjha.tech//blog/urlshortener https://www.vaibhavjha.tech//blog/urlshortener Sun, 05 Jan 2025 00:00:00 GMT System Design 2k22.cscys.2211080@gmail.com (Vaibhav Jha) How ALU (Arithmetic Logic Unit) Works https://www.vaibhavjha.tech//blog/alu https://www.vaibhavjha.tech//blog/alu Sat, 04 Jan 2025 00:00:00 GMT Computer Science 2k22.cscys.2211080@gmail.com (Vaibhav Jha) How Payment Gateways Work and How to Integrate Them https://www.vaibhavjha.tech//blog/paymentgateway https://www.vaibhavjha.tech//blog/paymentgateway Fri, 03 Jan 2025 00:00:00 GMT Backend 2k22.cscys.2211080@gmail.com (Vaibhav Jha) How RAM Actually Works https://www.vaibhavjha.tech//blog/howramworks https://www.vaibhavjha.tech//blog/howramworks Thu, 02 Jan 2025 00:00:00 GMT Computer Science 2k22.cscys.2211080@gmail.com (Vaibhav Jha)