The Yerevan Computer Research and Development Institute (Yerevan CRDI) is a research organization based in Yerevan, Armenia. It focuses on the fields of computer science, information technology, and software development. The institute is involved in a range of activities, including applied research, technology development, and scientific collaboration, aimed at advancing knowledge and fostering innovation in computing and related disciplines.
Online payments refer to the process of making financial transactions over the internet. This process allows users to pay for goods and services online using various methods, eliminating the need for cash or physical checks. Online payments are widely used in e-commerce, subscriptions, and various services, and they can be conducted through different platforms and devices, including computers, smartphones, and tablets. Common methods of online payment include: 1. **Credit and Debit Cards**: Users enter their card information to complete transactions.
Payment cards are financial cards that facilitate transactions between consumers and merchants, allowing users to pay for goods and services electronically. There are several types of payment cards, including: 1. **Credit Cards**: These allow consumers to borrow funds from the card issuer up to a certain limit to make purchases. Users are expected to pay back the borrowed amount, typically with interest, if not paid in full each month.
"Portal" can refer to a couple of different things in the context of computers and gaming, but it most commonly pertains to a critically acclaimed video game developed by Valve Corporation. Released in 2007 as part of the game bundle "The Orange Box," Portal is a puzzle-platform game that introduces a unique gameplay mechanic based around the use of a "portals" to solve puzzles and navigate through the game's environment.
A planisphere is a flat, rotating map of the stars and celestial objects that is used for stargazing. It typically consists of two parts: a circular star map that represents the night sky and a transparent overlay or rotating disk that covers the map. The user can adjust the overlay to display the stars visible at a specific date and time from a particular location on Earth.
Frederic C. Williams is a significant figure in the history of computer science, particularly known for his contributions to the development of early computing technologies. He was involved in the design of the Williams-Kilburn tube, which was an early form of computer memory that used cathode ray tubes to store data. The Williams tube was one of the first types of random-access memory, allowing computers to store and retrieve information much more quickly than previous methods, such as punched cards or magnetic tape.
IBM Hursley is an IBM development laboratory located in Hursley, near Winchester, England. Established in the 1960s, the facility has historically played a significant role in the development of various IBM software products and technologies. It is particularly known for its contributions to enterprise software, middleware, and cloud computing solutions. The Hursley lab has been involved in developing products like IBM WebSphere, IBM Integration Bus, and IBM MQ, among others.
The Kent Recursive Calculator, also known as the KRC, is a programming language and environment designed for exploring and demonstrating concepts in recursion and computation. It was developed in the context of educational use. KRC allows users to define recursive functions and perform computations that illustrate the principles of recursion, which is a fundamental concept in computer science and mathematics.
"Micro Men" is a 2009 BBC television film that tells the story of the rivalry between two toy manufacturers in the late 1970s: Chris Sievey, who created the infamous action figure "Cranky," and his competitor, Mattel's Big Jim line. The film revolves around the creation of the popular, tiny action figures known as "Micromen." It explores themes of innovation, creativity, and competition in the toy industry during that era.
Nominet UK is a domain name registry and the official registry for .uk domain names. Founded in 1996, it manages the registration and administrative functions for the .uk domain, which includes various second-level domains like .co.uk, .org.uk, and .me.uk, among others. Nominet plays a crucial role in the UK internet infrastructure, ensuring that domain names are registered, maintained, and resolved correctly.
The Plessey System 250 is a type of telecommunications switching system developed by the Plessey Company in the 1960s. It was designed for use in telephone exchanges and was notable for its use of transistor-based technology, which was a shift away from earlier electromechanical systems. The System 250 was used primarily in the UK but also found applications in other countries.
Premium Bonds are a type of savings product offered by National Savings and Investments (NS&I) in the United Kingdom. Instead of earning interest on the money you invest, Premium Bonds give you the chance to win tax-free prizes in a monthly lottery. Here are some key features of Premium Bonds: 1. **Investment**: Individuals can invest a minimum of £25 and a maximum of £50,000 in Premium Bonds. The money is used by the government to fund various public services.
The Williams tube, also known as the Williams tube computer or Williams-Kilburn tube, is an early form of computer memory that was developed in the late 1940s and early 1950s. It is a type of cathode ray tube (CRT) that was used to store data in a manner similar to how modern RAM (Random Access Memory) is used.
Robotics is a field that has evolved significantly over the decades, marked by various milestones and developments. Here's a high-level overview of key events and advancements in robotics by year through the modern era: ### 1950s - **1956**: George Devol invented the first industrial robot, Unimate, which would later be used in manufacturing.
Barbara Paulson could refer to a number of individuals, but one notable figure is Barbara Paulson, a prominent artist known for her work in textile design and fiber arts. She has been recognized for her contributions to art and education in these fields.
Cora G. Burwell is not a widely recognized public figure or term within well-known contexts as of my last knowledge update in October 2021. It's possible that she could be a private individual or a figure who has gained prominence or recognition after that date.
The term "Mary Clem" doesn't refer to any widely recognized concept, entity, or term based on my training data up to October 2023. It's possible that it could refer to a specific person, a fictional character, or perhaps a niche topic that isn't well-documented.
Ruth Teitelbaum was a notable figure known for her work in the field of mathematics, particularly in combinatorial geometry and related areas. She contributed to various mathematical problems and is often recognized for her teaching and mentoring roles within academic settings.

Pinned article: Introduction to the OurBigBook Project

Welcome to the OurBigBook Project! Our goal is to create the perfect publishing platform for STEM subjects, and get university-level students to write the best free STEM tutorials ever.
Everyone is welcome to create an account and play with the site: ourbigbook.com/go/register. We belive that students themselves can write amazing tutorials, but teachers are welcome too. You can write about anything you want, it doesn't have to be STEM or even educational. Silly test content is very welcome and you won't be penalized in any way. Just keep it legal!
We have two killer features:
  1. topics: topics group articles by different users with the same title, e.g. here is the topic for the "Fundamental Theorem of Calculus" ourbigbook.com/go/topic/fundamental-theorem-of-calculus
    Articles of different users are sorted by upvote within each article page. This feature is a bit like:
    • a Wikipedia where each user can have their own version of each article
    • a Q&A website like Stack Overflow, where multiple people can give their views on a given topic, and the best ones are sorted by upvote. Except you don't need to wait for someone to ask first, and any topic goes, no matter how narrow or broad
    This feature makes it possible for readers to find better explanations of any topic created by other writers. And it allows writers to create an explanation in a place that readers might actually find it.
    Figure 1.
    Screenshot of the "Derivative" topic page
    . View it live at: ourbigbook.com/go/topic/derivative
  2. local editing: you can store all your personal knowledge base content locally in a plaintext markup format that can be edited locally and published either:
    This way you can be sure that even if OurBigBook.com were to go down one day (which we have no plans to do as it is quite cheap to host!), your content will still be perfectly readable as a static site.
    Figure 2.
    You can publish local OurBigBook lightweight markup files to either https://OurBigBook.com or as a static website
    .
    Figure 3.
    Visual Studio Code extension installation
    .
    Figure 4.
    Visual Studio Code extension tree navigation
    .
    Figure 5.
    Web editor
    . You can also edit articles on the Web editor without installing anything locally.
    Video 3.
    Edit locally and publish demo
    . Source. This shows editing OurBigBook Markup and publishing it using the Visual Studio Code extension.
    Video 4.
    OurBigBook Visual Studio Code extension editing and navigation demo
    . Source.
  3. https://raw.githubusercontent.com/ourbigbook/ourbigbook-media/master/feature/x/hilbert-space-arrow.png
  4. Infinitely deep tables of contents:
    Figure 6.
    Dynamic article tree with infinitely deep table of contents
    .
    Descendant pages can also show up as toplevel e.g.: ourbigbook.com/cirosantilli/chordate-subclade
All our software is open source and hosted at: github.com/ourbigbook/ourbigbook
Further documentation can be found at: docs.ourbigbook.com
Feel free to reach our to us for any help or suggestions: docs.ourbigbook.com/#contact