System Architecture

Recently, I came across an engineering blog by Dropbox, talking about Robinhood (their in-house built load balancing service). So, I decided to spend my Christmas evening - implementing a PID controller (a mini-version of Robinhood service in python) and observe how well it works in simulations.

Would you like a fast and flexible interaction with your API? To achieve this goal, it is necessary to …

A comprehensive guide to key concepts, terminologies and working of Video Streaming apps

Using a two-phase data load and render pattern to prevent N+1 queries in a generalized way. Especially useful in Go, but applicable in any language.

This is the fascinating story of how researchers used Bloom filters cleverly to make SQLite 10x faster for analytical queries. These are my five-minute notes on the paper SQLite: Past, Present, and Future

One of the reasons for lack of blog post publishing is that my attention has been focused fairly heavily on working within the IETF. Toward the beginning of the COVID pandemic, the US Government published a new initiative - M-21-07, which requires the migration of all federally owned systems to IPv6-only. What does “IPv6-only” mean, you may ask. Well, that’s kinda nebulous. People define it in varying levels of extremism, I’ve chosen to define it as “a device that can operate without the use of IPv4 configured”.

Created by Timm Albers, Strategies for an Auction is a composition and sound installation consisting of six sound objects featuring speakers, displays and microcontrollers. The installation attempts to reenact a real time bidding system normally found in online advertisement platforms, which is resp

David J. Berg*, David Casler^, Romain Cledat*, Qian Huang*, Rui Lin*, Nissan Pow*, Nurcan Sonmez*, Shashank Srikanth*, Chaoying Wang*…

If you have discipline to throw away your first idea, draft, throwaway PRs often drives more progress than a design doc.

Understand vector embeddings, tokenization, and vector databases with a clear explanation and practical examples

Discover the inner workings of ISO 8583, the global standard for credit card transaction messaging. Learn how it powers payment processing across networks and explore its structure, fields, and real-world applications.

Tiger introduces Automator, which lets users string together preinstalled script steps--called Actions--into a workflow that can be run and saved. In this tutorial, Matt Neuburg shows you how to write your own.

Have you ever carefully created a chart or graphic and then pasted it into a report only to discover you needed to change it later? Apps should work together so you can make this sort of change with just a few clicks. That's now possible thanks to a ...

Spotlight integration with Tiger and its apps tilts the scales back toward Safari, Address Book, iCal, and Mail for your core applications. Matthew Russell shows you how this intelligent technology enables you to find just about anything, anywhere, regardless...

The essence of the digital hub is that there is one entity that stores data, and many modules connected to the hub and to each other through the hub. This hub-and-spoke architecture works well to solve many business problems, where you have many users...

Mac OS X Tiger is the 5th major release of macOS, Apple's desktop and server operating system for Mac computers. Tiger was released to the public on April 29, 2005 for US$129.95 as the successor to Mac OS X 10.3 Panther. Included features were a fast searching system called Spotlight, a new version of the Safari web browser, Dashboard, a new 'Unified' theme, and improved support for 64-bit addressing on Power Mac G5s. Mac OS X 10.4 Tiger also had a number of additional features that Microsoft had spent several years struggling to add to Windows with acceptable performance, such as fast file search and improved graphics processing.

Spotlight is a system-wide desktop search feature of Apple's macOS, iOS, iPadOS, and visionOS operating systems. Spotlight is a selection-based search system, which creates an index of all items and files on the system. It is designed to allow the user to quickly locate a wide variety of items on the computer, including documents, pictures, music, applications, and System Settings. In addition, specific words in documents and in web pages in a web browser's history or bookmarks can be searched. It also allows the user to narrow down searches with creation dates, modification dates, sizes, types and other attributes. Spotlight also offers quick access to definitions from the built-in New Oxford American Dictionary and to calculator functionality. There are also command-line tools to perform functions such as Spotlight searches.

Automator is an application developed by Apple Inc. for macOS, which can be used to automate repetitive tasks through point-and-click or drag and drop.

Desktop search tools search within a user's own computer files as opposed to searching the Internet. These tools are designed to find information on the user's PC, including web browser history, e-mail archives, text documents, sound files, images, and video. A variety of desktop search programs are now available; see this list for examples. Most desktop search programs are standalone applications. Desktop search products are software alternatives to the search software included in the operating system, helping users sift through desktop files, emails, attachments, and more.

NEPOMUK (Networked Environment for Personal, Ontology-based Management of Unified Knowledge) is an open-source software specification that is concerned with the development of a social semantic desktop that enriches and interconnects data from different desktop applications using semantic metadata stored as RDF. Between 2006 and 2008 it was funded by a European Union research project of the same name[2] that grouped together industrial and academic actors to develop various Semantic Desktop technologies.

Recoll is a desktop document search application for Unix, Linux, Microsoft Windows and MacOS, based on the Xapian search engine library.

Recoll is a desktop search tool that provides full-text search in a GUI with a few mandatory external dependencies. It runs on many Unix-like operating systems and is mostly independent of the desktop environment. Recoll has been ported to OS/2, and is planned for integration into the OS/2-based ArcaOS.