In computer programming, a handle is an abstract reference to a resource that is used when application software references blocks of memory or objects that are managed by another system like a database or an operating system. A resource handle can be an opaque identifier, in which case it is often an integer number (often an array index in an array or "table" that is used to manage that type of resource), or it can be a pointer that allows access to further information. Common resource handles include file descriptors, network sockets, database connections, process identifiers (PIDs), and job IDs. PIDs and job IDs are explicitly visible integers; while file descriptors and sockets (which are often implemented as a form of file descriptor) are represented as integers, they are typically considered opaque. In traditional implementations, file descriptors are indices into a (per-process) file descriptor table, thence a (system-wide) file table. (Wikipedia).
Computer Basics: What Is a Computer?
Computers are all around us, and they play an important role in our lives. But what exactly is a computer? We're going to answer that question and give you an overview of some of the different types of computers you might use. 0:00 Intro 0:22 Ones and zeros 0:39 Hardware and software 1:0
From playlist Starting out with Technology
An intro to the core protocols of the Internet, including IPv4, TCP, UDP, and HTTP. Part of a larger series teaching programming. See codeschool.org
From playlist The Internet
An intro to the core protocols of the Internet, including IPv4, TCP, UDP, and HTTP. Part of a larger series teaching programming. See codeschool.org
From playlist The Internet
If you are interested in learning more about this topic, please visit http://www.gcflearnfree.org/ to view the entire tutorial on our website. It includes instructional text, informational graphics, examples, and even interactives for you to practice and apply what you've learned.
From playlist Machine Learning
Operating system for beginners || Operating system basics
An operating system (OS) is system software that manages computer hardware, software resources, and provides common services for computer programs. Time-sharing #operating_systems schedule tasks for efficient use of the system and may also include accounting software for cost allocation o
From playlist Operating System
Computer Basics: Understanding Applications
No matter what type of device you have, you'll need to use applications (or "apps"). Applications allow you to do all kinds of things, from creating documents, to viewing videos, to playing games. We're going to show some examples of how you might use apps. For example, if you have a smar
From playlist Starting out with Technology
Simple Machines (4 of 7) Pulleys; Calculating the Amount of Work Done
For the pulley simple machine shows how to calculate the amount of work done when raising an object and why simple machines do not make your work easier! A simple machine is a mechanical device that changes the direction and the magnitude of a force. In general, they can be defined as th
From playlist Mechanics
Computer Fundamentals - Basics for Beginners
A computer is an electronic machine that accepts data, stores and processes data into information. The computer is able to work because there are instructions in its memory directing it. The parts of the computer that you can see and touch, such as the keyboard, monitor and the mouse are
From playlist Computer
Protein folding and aggregation by D. Thirumalai
Conference and School on Nucleation Aggregation and Growth URL: https://www.icts.res.in/program/NAG2010 DATES: Monday 26 July, 2010 - Friday 06 Aug, 2010 VENUE : Jawaharlal Nehru Centre for Advanced Scientific Research, Bengaluru DESCRIPTION: Venue: Jawaharlal Nehru Centre for Advance
From playlist Conference and School on Nucleation Aggregation and Growth
DEFCON 20: Overwriting the Exception Handling Cache PointerDwarf Oriented Programming
Speakers: RODRIGO RUBIRA BRANCO VULNERABILITY & MALWARE RESEARCH LABS, QUALYS JAMES OAKLEY PROGRAMMER SERGEY BRATUS RESEARCH ASS'T PROFESSOR, COMP. SCIENCE, DARTMOUTH COLLEGE This presentation describes a new technique for abusing the DWARF exception handling architecture used by the GCC
From playlist DEFCON 20
Live CEOing Ep 607: Language Design in Wolfram Language [Error Handling]
In this episode of Live CEOing, Stephen Wolfram discusses upcoming improvements and features to the Wolfram Language. If you'd like to contribute to the discussion in future episodes, you can participate through this YouTube channel or through the official Twitch channel of Stephen Wolfram
From playlist Behind the Scenes in Real-Life Software Design
A frontal view on Lefschetz fibrations II - Rodger Casals
Augmentations and Legendrians at the IAS Topic: A frontal view on Lefschetz fibrations II Speaker: Roger Casals Date: Friday, February 12 In this series of two talks we will discuss Weinstein structures endowed with a Lefschetz fibration in terms of the Legendrian front projection. The ma
From playlist Mathematics
Erlang Master Class 2: Video 3 - Handling errors
http://www.cs.kent.ac.uk/ErlangMasterClasses These Master Classes will show you how Erlang can be used in practice to solve larger problems. The examples provide 'capstones' for different aspects of Erlang: functional programming, concurrent programming and larger-scale programming with O
From playlist Erlang Master Class
Mazur's program B. - Zureick-Brown - Workshop 2 - CEB T2 2019
David Zureick-Brown (Emory University, Atlanta USA) / 25.06.2019 Mazur's program B. I’ll discuss recent progress on Mazur’s “Program B” – the problem of classifying all possibilities for the “image of Galois” for an elliptic curve over Q (equivalently, classification of all rational poi
From playlist 2019 - T2 - Reinventing rational points
Joel Hass - Lecture 1 - Algorithms and complexity in the theory of knots and manifolds - 18/06/18
School on Low-Dimensional Geometry and Topology: Discrete and Algorithmic Aspects (http://geomschool2018.univ-mlv.fr/) Joel Hass (University of California at Davis, USA) Algorithms and complexity in the theory of knots and manifolds Abstract: These lectures will introduce algorithmic pro
From playlist Joel Hass - School on Low-Dimensional Geometry and Topology: Discrete and Algorithmic Aspects
Mission Impossible: Constructing Charles Babbage's Analytical Engine (d)
The Neukom Institute at Dartmouth presents: Mission Impossible: Constructing Charles Babbage's Analytical Engine Given by Doron Swade on May 8th at Dartmouth College Computing is widely viewed as a phenomenon of the electronic age. The mechanical prehistory of computing tends to be seen a
From playlist AnalyticalEngine
A Simple Programming Language - (part 13 of 13)
An introduction to programming with a reductively simple programming language. Part of a larger series teaching programming. Visit http://codeschool.org Please link to the playlist (http://www.youtube.com/playlist?list=PL2F1485C69B311408) rather than this video as individual videos may g
From playlist A Simple Programming Language
Embedded Recipes 2019 - Pipewire a new foundation for embedded multimedia
PipeWire is an open source project that aims to greatly improve audio and video handling under Linux. Utilising a fresh design, it bridges use cases that have been previously addressed by different tools – or not addressed at all -, providing ground for building complex, yet secure and eff
From playlist Embedded Recipes 2019
10 - Simple and unbreakable simulation of soft bodies
For the source html code and all other tutorials see https://matthias-research.github.io/pages/tenMinutePhysics/index.html In this tutorial I show how to simulate soft bodies with in an unconditionally stable and simple way. Using a discrete rather than a continuous model and a local ins
From playlist Position Based Dynamics
If you are interested in learning more about this topic, please visit http://www.gcflearnfree.org/ to view the entire tutorial on our website. It includes instructional text, informational graphics, examples, and even interactives for you to practice and apply what you've learned.
From playlist Computers