/AlamA researcher and developer scientist work related to data, software and hardware 2026-07-18T06:22:58+07:00 Alam / Jekyll © 2026 Alam /assets/img/favicons/favicon.ico /assets/img/favicons/favicon-96x96.png Buffer overflow vulnerability2026-06-21T10:53:31+07:00 2026-06-21T10:53:31+07:00 /posts/buffer-overflow-vulnerability/ Alam Managing a memory in low level system is crucial. If not handle properly it can cause memory leaks, which may disrupt the performance system and create a security risks. Hacker can also exploit memory related vulnerabilities such as buffer overflows. Buffer Overflow Vulnerability occurs when a program writes more data into a buffer than it can hold, causing adjacent memory to be overwritten... Tail Call Optimization2026-06-20T21:22:22+07:00 2026-06-20T21:22:22+07:00 /posts/tail-call-optimization/ Alam When working into low level system, optimization becomes important especially for reduce time and space complexity. One useful technique in this context is Tail Call Optimization (TCO). It allows certain recursive function to executed more efficiently by reusing the current function stack frame instead of create a new one for each call. As a result, tail-recursive functions improving performa... Assembly basic2026-06-17T08:47:00+07:00 2026-06-17T08:47:00+07:00 /posts/assembly-basic/ Alam Binary code was hard to read by human because it consists entirely instruction of 0 and 1, assembly language was developed as representative a human readable of machine code. Unlike high level programming language, assembly operates at low level and closely tied to the hardware architecture. Learning assembly has many advantage especially for cyber security, optimization, hardware and gain d... Scientific computing with OpenMP and MPI2026-06-16T08:39:21+07:00 2026-06-20T22:20:00+07:00 /posts/scientific-computing-with-open-mp-and-mpi/ Alam Science and engineering have experienced significant transformations in research, development, and technology over the past few decades. The modern scientist and engineer spend more time in front of pc, a workstation or parallel supercomputer and less time in physical laboratory or in the workshop. The methods of scientific analysis and engineering design are changing continuously affecting bot... Data Normalization2026-06-15T14:53:00+07:00 2026-06-15T14:53:00+07:00 /posts/data-normalization/ Alam Big data can be challenging especially for organized and analyze due to its volume, variety, and complexity. To address this issue, normalization is commonly used. However, normalization exists in 2 main forms: Database Normalization and Data Mining normalization. Although they share similar goal of improving data usability, they are applied for different stages and purposes. 🗄️ Database no...