1. Building a Personal VoIP System Total comment counts : 31 Summary The article is a guide for setting up a digital telephone system using open-source tools such as Asterisk. It provides an overview of the Session Initialization Protocol (SIP) and how it works in local and external networks. The article suggests a solution to the problem of network address translation (NAT) in external networks by configuring a fixed RTP port range on each of the SIP devices and creating static port forwarding rules on the router for each device....

1. The Silent (R)evolution of SAT Total comment counts : 9 Summary The article cannot be accessed due to restrictions set by the site owner. An error code 1020 with the Ray ID 7cd9fb35acfe043c was received on attempting to visit the page. The data center is located in HK, and the IP address is 43.132.141.3. The error occurred on May 27, 2023, at 00:01:04 UTC. The website is protected by Cloudflare for security purposes....

1. The tiny corp raised $5.1M Total comment counts : 46 Summary The author has started a new company that aims to commoditize “the petaflop” by building an open-source framework, runtime, and driver for AMD chips. The company’s short-term goal is to get AMD on MLPerf using their tinygrad framework. They believe that starting an AI chip company requires starting with the software and that the computing in ML is not general-purpose computing....

1. Regent – Electric coastal travel Total comment counts : 33 Summary A company manufactures all-electric, wing-in-ground-effect vehicles for coastal transportation, using real-world-proven technology. They have already sold over 467 seagliders with a $7.9B order backlog. The electric propulsion system drastically decreases fuel costs, maintenance, and taxes, while allowing for faster door-to-door transportation and zero-emission travel. The company’s experienced engineers aim to pioneer high-speed, safe, and regional zero-emission transportation. Top 1 Comment Summary The author suggests that using a light electric ferry service between Ala Wai and Lahaina harbors in Hawaii could be a successful and more efficient alternative to inter-island travel using jet aircraft, which involves time-consuming processes such as airport security....

1. RWKV: Reinventing RNNs for the Transformer Era Total comment counts : 21 Summary: ArXivLabs is a collaborative framework that allows individuals and organizations to develop and share new features on the arXiv website. These collaborators have accepted and embraced the values of openness, community, excellence, and user data privacy that arXiv is committed to. ArXiv only partners with those who adhere to these values and are willing to add value to the arXiv community....

1. Memory Allocation Total comment counts : 51 Summary: The article discusses the basics of memory allocation for computer programs. Programs load from the hard drive into memory and then perform computations on values stored in memory. malloc and free functions are used by almost all programs to manage memory. The article provides visual representations of simple memory allocators and discusses problems such as memory leaks and fragmentation. To combat fragmentation, the article recommends overallocation....

1. The end of the accounting search Total comment counts : 30 Summary: LWN.net has announced that it will no longer be using the proprietary accounting system QuickBooks, which has been in use since the organization was founded in 1997. Despite the system being familiar, it was unreliable and demonstrated the sort of behaviors endemic to proprietary systems, such as frequent crashes, arbitrary upgrade limits forcing users towards more expensive versions, and an enforced need for regular updates....

Hi. What do you think is a single most important component required for a successful system design interview? What should we focus on the most while preparing for one? I bet this is knowledge. Knowledge of system design concepts and how to combine them together. And let me prove you that by walking you through all the stages of a typical system design interview. This is system design interview channel. And today we discuss how to count things at a large scale....