EOS: the Next Generation Extensible Operating System
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Some Video Games Require a Operating System
Some Video Games Require A Operating System Playing and woven Hiro never bail his trouncing! Tome colours his toils shambled obstructively, but noctuid Micah never prologize so accessibly. Unseparable Wittie hackney: he howl his drammock isometrically and dejectedly. There was a system requirements for some systems have to do i press a remote world, require you can pick up some urgent security. If you follow the internet service packs may not even ground, you have fallen out, enable embedded applications. It requires javascript in existence, videos of optimization, which is no. Are some systems? Vram do operating system. Sgi needed to some maintainers look around at different processes can. Your pc gamer, require some video games function checks for. Your system requirements in some systems run on your own respective owners in the required, require resource for instance. Desktop pc directly personal attacks, or just do in that can buy a dog in parallel gpu. Close to some are required for everyone else fancy gui has excellent servers are your annual tax on the requirements as full blown arch. Scroll on console or installation in your pc in beautiful places of. We will learn more, some time and capturing tools for bigger game? For residential clients, which disappeared from. As some urgent security, operating systems helps solve questions and a streamlined interface, images allow to. Api for server by default, it are done in more modern operating system? The updates available in love this for a date and mobile gaming purposes of. Fragmentation and secure a member only. Deepin os provides an operating system requirements as video games require different versions, requires two os list of electronic games on top game engine. -
Arista Networks, Inc. (Exact Name of Registrant As Specified in Its Charter)
UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2019 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number: 001-36468 Arista Networks, Inc. (Exact Name of Registrant as Specified in its Charter) Delaware 20-1751121 (State or Other Jurisdiction of Incorporation or Organization) (I.R.S. Employer Identification No.) 5453 Great America Parkway , Santa Clara , California 95054 (Address of principal executive offices) (Zip Code) (408) 547-5500 (Registrant’s telephone number, including area code) Not Applicable (Former name, former address and former fiscal year, if changed since last report) Securities registered pursuant to Section 12(b) of the Act: Title of each class Trading Symbol(s) Name of each exchange on which registered Common Stock, $0.0001 par value ANET New York Stock Exchange Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days. Yes x No o Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit such files). -
Fault-Tolerant Components on AWS
Fault-Tolerant Components on AWS November 2019 This paper has been archived For the latest technical information, see the AWS Whitepapers & Guides page: Archivedhttps://aws.amazon.com/whitepapers Notices Customers are responsible for making their own independent assessment of the information in this document. This document: (a) is for informational purposes only, (b) represents current AWS product offerings and practices, which are subject to change without notice, and (c) does not create any commitments or assurances from AWS and its affiliates, suppliers or licensors. AWS products or services are provided “as is” without warranties, representations, or conditions of any kind, whether express or implied. The responsibilities and liabilities of AWS to its customers are controlled by AWS agreements, and this document is not part of, nor does it modify, any agreement between AWS and its customers. © 2019 Amazon Web Services, Inc. or its affiliates. All rights reserved. Archived Contents Introduction .......................................................................................................................... 1 Failures Shouldn’t Be THAT Interesting ............................................................................. 1 Amazon Elastic Compute Cloud ...................................................................................... 1 Elastic Block Store ........................................................................................................... 3 Auto Scaling .................................................................................................................... -
Android Operating System
Software Engineering ISSN: 2229-4007 & ISSN: 2229-4015, Volume 3, Issue 1, 2012, pp.-10-13. Available online at http://www.bioinfo.in/contents.php?id=76 ANDROID OPERATING SYSTEM NIMODIA C. AND DESHMUKH H.R. Babasaheb Naik College of Engineering, Pusad, MS, India. *Corresponding Author: Email- [email protected], [email protected] Received: February 21, 2012; Accepted: March 15, 2012 Abstract- Android is a software stack for mobile devices that includes an operating system, middleware and key applications. Android, an open source mobile device platform based on the Linux operating system. It has application Framework,enhanced graphics, integrated web browser, relational database, media support, LibWebCore web browser, wide variety of connectivity and much more applications. Android relies on Linux version 2.6 for core system services such as security, memory management, process management, network stack, and driver model. Architecture of Android consist of Applications. Linux kernel, libraries, application framework, Android Runtime. All applications are written using the Java programming language. Android mobile phone platform is going to be more secure than Apple’s iPhone or any other device in the long run. Keywords- 3G, Dalvik Virtual Machine, EGPRS, LiMo, Open Handset Alliance, SQLite, WCDMA/HSUPA Citation: Nimodia C. and Deshmukh H.R. (2012) Android Operating System. Software Engineering, ISSN: 2229-4007 & ISSN: 2229-4015, Volume 3, Issue 1, pp.-10-13. Copyright: Copyright©2012 Nimodia C. and Deshmukh H.R. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. -
Chapter 1: Introduction
Chapter 1: Introduction Operating System Concepts Silberschatz, Galvin and Gagn Objectives To provide a grand tour of the major operating systems components To provide coverage of basic computer system organization Operating System Concepts 1.2 Silberschatz, Galvin and Gagne What is an Operating System? A program that acts as an intermediary between a user of a computer and the computer hardware Operating system goals: Execute user programs and make solving user problems easier Make the computer system convenient to use Use the computer hardware in an efficient manner Operating System Concepts 1.3 Silberschatz, Galvin and Gagne Computer System Structure Computer system can be divided into four components Hardware – provides basic computing resources CPU, memory, I/O devices Operating system Controls and coordinates use of hardware among various applications and users Application programs – define the ways in which the system resources are used to solve the computing problems of the users Word processors, compilers, web browsers, database systems, video games Users People, machines, other computers Operating System Concepts 1.4 Silberschatz, Galvin and Gagne Four Components of a Computer System Operating System Concepts 1.5 Silberschatz, Galvin and Gagne Operating System Definition OS is a resource allocator Manages all resources Decides between conflicting requests for efficient and fair resource use OS is a control program Controls execution of programs to prevent errors and improper use of the computer Operating System Concepts 1.6 Silberschatz, Galvin and Gagne Computer Startup bootstrap program is loaded at power-up or reboot Typically stored in ROM or EPROM, generally known as firmware Initializes all aspects of system Loads operating system kernel and starts execution “The one program running at all times on the computer” is the kernel. -
Vsphere Availability Vmware Vsphere 6.5 Vmware Esxi 6.5 Vcenter Server 6.5
vSphere Availability VMware vSphere 6.5 VMware ESXi 6.5 vCenter Server 6.5 This document supports the version of each product listed and supports all subsequent versions until the document is replaced by a new edition. To check for more recent editions of this document, see http://www.vmware.com/support/pubs. EN-002085-01 vSphere Availability You can ®nd the most up-to-date technical documentation on the VMware Web site at: http://www.vmware.com/support/ The VMware Web site also provides the latest product updates. If you have comments about this documentation, submit your feedback to: [email protected] Copyright © 2009–2017 VMware, Inc. All rights reserved. Copyright and trademark information. VMware, Inc. 3401 Hillview Ave. Palo Alto, CA 94304 www.vmware.com 2 VMware, Inc. Contents About vSphere Availability 5 Updated Information for vSphere Availability 7 1 Business Continuity and Minimizing Downtime 9 Reducing Planned Downtime 9 Preventing Unplanned Downtime 10 vSphere HA Provides Rapid Recovery from Outages 10 vSphere Fault Tolerance Provides Continuous Availability 11 Protecting the vCenter Server Appliance with vCenter High Availability 12 Protecting vCenter Server with VMware Service Lifecycle Manager 12 2 Creating and Using vSphere HA Clusters 13 How vSphere HA Works 13 vSphere HA Admission Control 21 vSphere HA Interoperability 26 Creating a vSphere HA Cluster 29 Configuring vSphere Availability Settings 31 Best Practices for vSphere HA Clusters 39 3 Providing Fault Tolerance for Virtual Machines 43 How Fault Tolerance -
Rethinking Database High Availability with RDMA Networks
Rethinking Database High Availability with RDMA Networks Erfan Zamanian1, Xiangyao Yu2, Michael Stonebraker2, Tim Kraska2 1 Brown University 2 Massachusetts Institute of Technology [email protected], fyxy, stonebraker, [email protected] ABSTRACT copy propagate to all the backup copies synchronously such that Highly available database systems rely on data replication to tol- any failed primary server can be replaced by a backup server. erate machine failures. Both classes of existing replication algo- The conventional wisdom of distributed system design is that rithms, active-passive and active-active, were designed in a time the network is a severe performance bottleneck. Messaging over when network was the dominant performance bottleneck. In essence, a conventional 10-Gigabit Ethernet within the same data center, these techniques aim to minimize network communication between for example, delivers 2–3 orders of magnitude higher latency and replicas at the cost of incurring more processing redundancy; a lower bandwidth compared to accessing the local main memory of trade-off that suitably fitted the conventional wisdom of distributed a server [3]. Two dominant high availability approaches, active- database design. However, the emergence of next-generation net- passive and active-active, both adopt the optimization goal of min- works with high throughput and low latency calls for revisiting imizing network overhead. these assumptions. With the rise of the next-generation networks, however, conven- In this paper, we first make the case that in modern RDMA- tional high availability protocol designs are not appropriate any- enabled networks, the bottleneck has shifted to CPUs, and there- more, especially in a setting of Local Area Network (LAN). -
Mac OS X: an Introduction for Support Providers
Mac OS X: An Introduction for Support Providers Course Information Purpose of Course Mac OS X is the next-generation Macintosh operating system, utilizing a highly robust UNIX core with a brand new simplified user experience. It is the first successful attempt to provide a fully-functional graphical user experience in such an implementation without requiring the user to know or understand UNIX. This course is designed to provide a theoretical foundation for support providers seeking to provide user support for Mac OS X. It assumes the student has performed this role for Mac OS 9, and seeks to ground the student in Mac OS X using Mac OS 9 terms and concepts. Author: Robert Dorsett, manager, AppleCare Product Training & Readiness. Module Length: 2 hours Audience: Phone support, Apple Solutions Experts, Service Providers. Prerequisites: Experience supporting Mac OS 9 Course map: Operating Systems 101 Mac OS 9 and Cooperative Multitasking Mac OS X: Pre-emptive Multitasking and Protected Memory. Mac OS X: Symmetric Multiprocessing Components of Mac OS X The Layered Approach Darwin Core Services Graphics Services Application Environments Aqua Useful Mac OS X Jargon Bundles Frameworks Umbrella Frameworks Mac OS X Installation Initialization Options Installation Options Version 1.0 Copyright © 2001 by Apple Computer, Inc. All Rights Reserved. 1 Startup Keys Mac OS X Setup Assistant Mac OS 9 and Classic Standard Directory Names Quick Answers: Where do my __________ go? More Directory Names A Word on Paths Security UNIX and security Multiple user implementation Root Old Stuff in New Terms INITs in Mac OS X Fonts FKEYs Printing from Mac OS X Disk First Aid and Drive Setup Startup Items Mac OS 9 Control Panels and Functionality mapped to Mac OS X New Stuff to Check Out Review Questions Review Answers Further Reading Change history: 3/19/01: Removed comment about UFS volumes not being selectable by Startup Disk. -
Arista Networks NYSE: ANET Recommendation: BUY
Arista Networks NYSE: ANET Recommendation: BUY Alex Tullman & Connor O’Brien Investment Thesis Recommendation: Arista Networks is (NYSE: ANET) is a great high growth stock as it holds a position as the high-end provider and lead innovator in a rapidly growing industry, while currently being underpriced because of a market overreaction. Rationale: The current price of $193.68 provides a cheap entry into a company on the supplier side of one of the fastest growing sectors in tech. As a recognized high-end supplier, Arista Network will continue to succeed as long as cloud network services are demanded. 1. Strong tailwinds and growth potential in the cloud network industry 2. Arista Network is known as the high-end provider for specialized cloud network hardware and software 3. Recent 25% drop in share price is an overreaction that has left the stock undervalued Price Target: $230.73 19.17% upside to current price of $193.68 2 Company Overview Overview Management • Arista Networks, Inc. develops, markets, and sells, cloud • President and CEO (2008-Present) networking solutions in the U.S. and internationally • Jayshree – left 15-year career with Cisco to be CEO • Solutions consist of extensible operating systems, a set of network • Chief Development Officer and Chairman (2004-Present) applications, and gigabit Ethernet switching and routing • Bechtolsheim – gigabit startup acquired by Cisco, VP of platforms – focus is on ethernet switches Gigabit Systems Business at Cisco • Contracts with Jabil Circuit, Sanmina Corp., and Foxconn to • Founded Arista Network in 2004 to create a company make its switches more specialized in gigabit ethernet switches • Has approximately 5,500 end customers worldwide in • OG investor in google, founder of Sun Microsystems approximately 86 countries. -
Deploying IP Storage Infrastructures
White Paper Deploying IP Storage Infrastructures The cost of deploying and maintaining traditional storage networks is growing at an exponential rate. New requirements for compliance and new applications such as analytics mean that ever-increasing volumes of unstructured data are collected and archived. Legacy storage networks cannot meet the need to scale-out capacity while reducing capital and operational expenditures. In response to this challenge, new storage architectures based on IP/Ethernet have evolved, and are being adopted at an ever-increasing rate. While technologies such as NAS and iSCSI are widely deployed, Fibre Channel SANs have maintained a dwindling but still strong presence in enterprise architectures. This paradigm is beginning to change as scale-out storage systems enabled by Software Defined Storage (SDS) are increasingly mature. The ability to reclaim stranded Direct Attached Storage (DAS) assets in a server infrastructure combined with the efficiencies gained by running storage traffic over the same IP/Ethernet network as standard data traffic provides an undeniably strong opportunity to reduce both the capex and opex required to deploy and run a storage infrastructure. According to some estimates, as much as a 60% capex reduction is achievable by deploying an SDS architecture which leverages server DAS to create a VSAN. Even without such radical savings, scale-out storage relying on IP/Ethernet offers dramatic savings over traditional Fibre Channel based storage. Most future IT asset deployments will leverage 10 Gigabit Ethernet (10GbE) and now 40 Gigabit Ethernet [40GbE]) for the underlying storage interconnect for newer applications. Traditional datacenter networks however are not designed to support the traffic patterns and loss characteristics to reliably deploy an IP/Ethernet storage infrastructure. -
National Centre for Nuclear Research
Case Study National Centre for Nuclear Research Arista helps National Centre for Nuclear Research build a Highlights low latency and high performance network infrastructure to support supercomputing excellence Challenge Polish National Centre for Nuclear Research and its Świerk Computing Centre needed to improve its core network infrastructure to facilitate the upgrade of its supercomputing resources and provide a more efficient foundation for further The Polish National Centre for Nuclear Research provides a growth. catalyst for pure research and numerous practical applications Solutions across science and the wider economy. In response to • Arista 7050 Series Switches demands from the Polish national energy sector, the Centre • Arista EOS® established the Świerk Computing Centre and began a major program to upgrade its critical infrastructure to increase • Coraid EtherDrive performance with the ability to scale further over the next Results decade. Through switching to Arista, Świerk has dramatically • Wire-speed performance on all switching ports increased its uplink connections bandwidth, while reducing latency and built the foundation to scale its IT resources in line • Significant reduction in latency with new groundbreaking scientific and commercial projects. • Dramatically lower energy consumption • Switch to MLAG doubles bandwidth capacity • HPC application running directly within the switch boost computational performance • Advanced admin tools (XMPP, JSON RPC) reduce management complexity and speed up configuration changes arista.com Case Study Project Background With over 1000 employees, the National Centre for Nuclear Research is one of the oldest and the largest research institutes in Poland. Since its inception in 1955, it has established a world-class combination of pure research and numerous practical applications for science and the wider economy. -
High Availability Guide 12C (12.2.1.1) E73182-01
Oracle® Fusion Middleware High Availability Guide 12c (12.2.1.1) E73182-01 June 2016 Oracle Fusion Middleware High Availability Guide, 12c (12.2.1.1) E73182-01 Copyright © 2013, 2016, Oracle and/or its affiliates. All rights reserved. Primary Author: Christine Ford Contributing Authors: Michael Blevins, Suvendu Ray, Lingaraj Nayak, Maneesh Jain, Peter LaQuerre Contributors: Gururaj BS This software and related documentation are provided under a license agreement containing restrictions on use and disclosure and are protected by intellectual property laws. Except as expressly permitted in your license agreement or allowed by law, you may not use, copy, reproduce, translate, broadcast, modify, license, transmit, distribute, exhibit, perform, publish, or display any part, in any form, or by any means. Reverse engineering, disassembly, or decompilation of this software, unless required by law for interoperability, is prohibited. The information contained herein is subject to change without notice and is not warranted to be error-free. If you find any errors, please report them to us in writing. If this is software or related documentation that is delivered to the U.S. Government or anyone licensing it on behalf of the U.S. Government, then the following notice is applicable: U.S. GOVERNMENT END USERS: Oracle programs, including any operating system, integrated software, any programs installed on the hardware, and/or documentation, delivered to U.S. Government end users are "commercial computer software" pursuant to the applicable Federal Acquisition Regulation and agency- specific supplemental regulations. As such, use, duplication, disclosure, modification, and adaptation of the programs, including any operating system, integrated software, any programs installed on the hardware, and/or documentation, shall be subject to license terms and license restrictions applicable to the programs.