Published: 2025-06-22 | Origin: Hacker News

A hash function is a tool in computer science that converts complex inputs, such as words or images, into a single numerical value, making it easier to organize and retrieve data, like storing books in boxes. When you apply a hash function to a book title, it determines in which box to place the book, allowing for easy retrieval without needing to remember the exact location. However, a potential issue arises with hash collisions, which occur when two different inputs yield the same hash value, leading to inefficient data

Published: 2025-06-22 | Origin: Hacker News

The content discusses the unique design philosophies of Google's Tensor Processing Units (TPUs) compared to Graphics Processing Units (GPUs). The strengths of TPUs lie in their scalability, achieved through a combination of hardware design (focusing on energy efficiency and modularity) and software (such as the XLA compiler). TPUs, which are custom ASICs developed by Google, excel in matrix multiplication throughput and energy efficiency. They originated in 2006 when Google considered various hardware options (GPUs,

Published: 2025-06-22 | Origin: /r/programming

In Go applications, parsing untrusted data poses significant security risks, often leading to exploitation vulnerabilities. Security assessments have revealed that vulnerabilities exist in Go's JSON, XML, and YAML parsers, enabling attackers to bypass authentication, circumvent authorization, and extract sensitive data. Notable examples include documented vulnerabilities such as CVE-2020-16250, highlighting the real-world implications of these issues. The discussion outlines three attack scenarios related to these unexpected parser behaviors, aimed at educating security engineers and Go developers on

Published: 2025-06-22 | Origin: Hacker News

The content expresses a commitment to valuing user feedback and encourages users to refer to documentation for available qualifiers. It mentions "Sound As Pure Form," a Forth-like language designed for audio synthesis using lazy lists and APL-like auto-mapping. Additionally, it notes that there was an error while loading the page and prompts users to reload it.

Published: 2025-06-22 | Origin: /r/ruby

The author reflects on a gardening experience, discovering mold on cucumbers, which prompts a parallel to software testing. They share a story about a developer named Alice who struggled with Behavior-Driven Development (BDD) due to the rigid grammar requirements of testing frameworks. Instead of enhancing clarity, the strictness led to confusion and frustration among team members. This inspired the idea of a more adaptable testing approach, dubbed "Botrytis BDD," which would allow tests to be more forgiving and interpret various commands (

Published: 2025-06-22 | Origin: /r/programming

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Published: 2025-06-22 | Origin: Hacker News

The US has conducted significant airstrikes on key Iranian nuclear sites, including Fordo, Natanz, and Isfahan, escalating tensions in the ongoing conflict between Iran and Israel. In a national address, President Trump warned that further attacks on Iran could be "far greater" if peace is not achieved. Iran's foreign minister condemned the strikes as "outrageous," asserting that Iran would defend its sovereignty. Concurrently, the Israeli military has initiated its own attacks against Iranian military targets following

Published: 2025-06-21 | Origin: Hacker News

Artists working with celluloid film face challenges due to aging and unreliable film projection equipment, much of which dates back to the 1950s and 1960s. The last commercial 16mm projector was produced in the 1990s, and with the decline of traditional manufacturers, spare parts are scarce and expensive. Vintage projectors often lack the flexibility needed for contemporary artistic practices and archival purposes, contributing to the decline of analogue film experiences amidst the rise of digital technology. In response,

Published: 2025-06-21 | Origin: /r/programming

The author shares their experience with a coding problem on CodinGame and LeetCode involving a simulated free-falling spacecraft that requires programming thruster control to prevent collision and achieve a safe landing. The program must output control values (angle and power) each second during the simulation, with the goal of navigating the spacecraft accurately to the target landing zone. Initially, the author considered using manual condition adjustments, setting parameters for different scenarios, but realized it would be inefficient and limited. They then explored mathematical optimization

Published: 2025-06-21 | Origin: /r/programming

On June 12, 2025, Google Cloud Platform (GCP) experienced a significant global outage due to an automated quota update affecting their API management system. While this disruption impacted many critical services across the internet, Redpanda Cloud customers remained unaffected due to the platform's design for strong service level agreements (SLAs) and its cell-based architecture. The event highlighted the complexities of modern computer systems and the unpredictability of changes within such systems—often illustrated by chaos theory's butterfly effect,

Published: 2025-06-21 | Origin: /r/programming

The content discusses issues related to file operations on a network that has gone down, specifically when calling `stat`. The author clarifies that this call will block until the network times out, which could take several minutes, and notes that while Linux has a workaround using `io_uring`, Windows and macOS do not offer a non-blocking solution. The author also details several developments from the week: 1. Implemented a directory iterator to improve code readability, though it doesn’t solve the

Published: 2025-06-21 | Origin: /r/programming

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Published: 2025-06-21 | Origin: /r/programming

The content is from a website that includes a login and registration section. Portions of the site are copyrighted by The PHP Group from 2001-2002. The page was generated quickly using MySQL 8.4.5-cloud, and timestamps are shown in UTC. The content on the site belongs to respective copyright holders, and it or opinions expressed do not necessarily reflect those of Oracle or any associated entities. The copyright for 2025 belongs to Oracle Corporation and its affiliates.

Published: 2025-06-21 | Origin: Hacker News

The author advocates for transitioning from WhatsApp to Signal, citing significant concerns about WhatsApp's parent company, Meta, and its CEO, Mark Zuckerberg. The move is presented as both straightforward and painless. The author highlights issues such as WhatsApp’s 2021 policy change requiring users to share data with Facebook, undermining previous assurances of autonomy. The focus is placed on Signal because it aligns better with user interests and ethical standards, contrasting with WhatsApp's controversial practices. Additionally, the author compares this

Published: 2025-06-21 | Origin: /r/programming

The author is examining Model Context Protocol (MCP) implementations by Anthropic, which standardize communication between AI models and external tools. While this protocol simplifies integration, it has significant security vulnerabilities. A major concern is that the natural language descriptions of tools, provided by MCP servers, are used directly by AIs to interpret commands. If an attacker controls the MCP server, they can manipulate these descriptions, tricking the AI into performing unintended actions, such as data exfiltration, without users being aware

Published: 2025-06-21 | Origin: /r/programming

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Published: 2025-06-21 | Origin: Hacker News

An open letter addressed to Samsung expresses concern over the pre-installed AppCloud application on its A and M series smartphones in West Asia and North Africa (WANA). Users have reported that AppCloud, created by the Israeli-founded company ironSource, collects sensitive personal data without consent and cannot be removed without compromising device security. The letter calls for Samsung to provide transparency regarding AppCloud’s privacy practices, opt-out options, and to reconsider the pre-installation of such applications, especially in light of privacy rights amid

Published: 2025-06-21 | Origin: Hacker News

The author shares helpful adapters and tools that enhance the use of computers, particularly laptops, based on over 25 years of experience. They highlight the importance of small yet valuable items, such as RJ45 angle adapters, which solve the problem of bulky cables protruding from laptops. These adapters, available for around $2 on Aliexpress, come in various angles and can even be complemented with short cables to enhance functionality. The article emphasizes that these inexpensive solutions can significantly improve user experience, especially for managing LAN

Published: 2025-06-21 | Origin: Hacker News

The introduction outlines a new series focused on Abstract Algebra, particularly Galois Fields (or Finite Fields), and their relevance to computer science. The author expresses frustration over the limited and often inaccessible resources available for computer scientists seeking to understand this topic, especially since Abstract Algebra isn't typically covered in computer science curriculums beyond the basics like Discrete Math and Linear Algebra. This series aims to bridge that gap by providing a detailed, step-by-step approach that includes practical code implementations. The author highlights the

Published: 2025-06-20 | Origin: Hacker News

This year marks the 40th anniversary of FPGAs, starting with Xilinx's XC2064, launched in 1985, which featured 64 configurable logic blocks. Over the years, FPGAs have seen significant advancements, with modern counterparts from AMD boasting 8.9 million logic cells, 8.2 million flip-flops, and various integrated systems, including Arm processing cores and AI capabilities. The XC2064 originally sold for $55, equivalent to about $165 today