The Right Chromebook for K-12 Education

Total Page:16

File Type:pdf, Size:1020Kb

The Right Chromebook for K-12 Education The Right Chromebook for K-12 Education How processor performance affects teaching and learning COMMISSIONED BY INTEL® PREPARED BY CLARITY INNOVATIONS, INC. The Right Chromebook for K-12 Education Table of Contents Less Waiting, More Learning with Intel®-powered Chromebooks 3 Choosing the Right Chromebook for Learning 3 Test Devices 4 Conclusion 4 The Value of Time Saved 5 Overall Test Results 6 Classroom Test Scenarios and Outcomes 7 Educator Professional Learning Scenario 7 Digital Storytelling 8 Middle School Classroom Scenario 9 Interdisciplinary Public Service Announcement Project 10 High School Classroom Scenario 11 Science Project on Modeling and Simulations 12 Appendix 13 A. Device Specifications 13 B. Test Results 14 C. Scenario Testing Details 17 D. Average U.S. Teacher Salary 22 – 2 – Copyright © 2019 Clarity Innovations, Inc., All Rights Reserved. *Other names and brands may be claimed as the property of others. The Right Chromebook for K-12 Education Less Waiting, More Learning with Intel®-powered Chromebooks The need for affordable and sustainable technology solutions that improve learning outcomes and better engage students has led many U.S. educational institutions to implement widespread device adoptions. Based on CoSN’s Annual Infrastructure report, 59% of high schools and 63% of middle schools report that 100% of their students have access to non-shared, or 1:1 devices.1 In order to equip students and teachers with the tools they need to be successful, many school districts have chosen Chromebooks as their preferred student device. Recently, Google* reported that in Q4 of 2018, 21% of all notebooks sold in the U.S. were Chromebooks and that last year alone, the number of monthly Chrome OS* users who had Android* apps enabled on their devices, grew by 250%.2 In the past, Chromebooks were only able to run Chrome web apps, G Suite for Education* add-ons, and brows- er extensions, limiting their usability as compared to other devices and operating systems. With the addition of Android app support, Chromebooks are a much more powerful option for K-12 education. These apps can enhance student and educator experiences by adding new and practical uses for the Chromebook.3 Due to the increased ca- pability of Chromebooks that support Android apps and devices with more powerful configurations including faster processors and increased memory and storage, more and more schools are looking to refresh their deployments of both student and teacher devices with the latest generation of Chromebooks. Choosing the Right Chromebook for Learning Selecting the right Chromebook for students and educators can be challenging given the ever-increasing number of devices and configuration options. In order to help educators separate the wheat from the chaff, Intel® com- missioned Clarity Innovations to evaluate four commonly selected Chromebooks and test their effectiveness at completely common learning and professional development scenarios. As part of our testing, we selected typical applications used in K-12 such as G Suite for Education along with a variety of Android apps. We found that devices powered by Intel® technology allow educators and students to complete learning tasks using educational Android apps faster than devices with MediaTek* or AMD* processors. 1 CoSN 2018-2019 Annual Infrastructure Report 2 What’s new in Chrome OS? A faster, simpler, and more secure environment for Web and Android developers retrieved from Google Developers Blog 3 Android apps for Chromebooks: The essentials retrieved from Computerworld – 3 – Copyright © 2019 Clarity Innovations, Inc., All Rights Reserved. *Other names and brands may be claimed as the property of others. The Right Chromebook for K-12 Education Test Devices We identified four Chromebooks from a variety of device manufacturers to test based on the three lesson scenar- ios we developed. Included below the image of each device is the manufacturer name and model number of the processor. Complete details on the device specifications are available in the appendix. Acer* Chromebook Dell* Chromebook 11 Lenovo* 300e HP* Chromebook 14 Spin 13 3100 Intel® CoreTM i5 Intel® Celeron® N4000 MediaTek* 8173C AMD* A4 Conclusion When it comes to teaching and learning, one of the most valuable resources in any classroom is time. During the adoption process, purchasing low cost devices may seem like a good deal; however, the hidden cost of lost learn- ing time can have detrimental effects to both students and educators. Chromebooks with processors powered by Intel® technology save important teaching and learning time by reducing delays and allowing students and educa- tors to spend less time waiting for the processor to keep up with a learning task. However, when testing the processing time for using Android apps to complete more complex tasks like creating and exporting video projects and building and exporting 3D models and simulations, we discovered great differ- ences in processor speed and learning time saved. The table below illustrates the total learning time saved over the four-year life of the device by using a Chromebook powered by an Intel® processor. – 4 – Copyright © 2019 Clarity Innovations, Inc., All Rights Reserved. *Other names and brands may be claimed as the property of others. The Right Chromebook for K-12 Education The Value of Time Saved Calculations below are based on middle and high school teachers employing similar learning scenarios as those outlined in this report, twice a week in five separate classes for 30 weeks. Total learning time saved is based on comparison with the slowest device. See Appendix D for additional details on average U.S. teacher salary. AMD A4 Intel® Celeron® N4000 Intel® Core™ i5 Educator Professional 629.2 seconds 320.5 seconds/day 119.0 seconds/day Development Scenario Total learning time saved 25.7 hours/year 42.5 hours/year (as compared to the AMD device) Over the 4-year life of the device 102.8 hours 170 hours Value of time saved $ 3,034.65 $ 5,018.40 Middle School Scenario 241.9 seconds 145.7 seconds/day 114.2 seconds/day Total learning time saved 8.0 hours/year 10.6 hours/year (as compared to the AMD device) Over the 4-year life of the device 32 hours 42.4 hours Value of time saved $ 944.64 $ 1,251.64 High School Scenario 243.6 seconds 207.7 seconds/day 128.1 seconds/day Total learning time saved 3.0 hours/year 9.7 hours/year (as compared to the AMD device) Over the 4-year life of the device 12 hours 38.8 hours Value of time saved $ 354.24 $ 1,145.37 – 5 – Copyright © 2019 Clarity Innovations, Inc., All Rights Reserved. *Other names and brands may be claimed as the property of others. The Right Chromebook for K-12 Education Overall Test Results The learning scenarios we developed and tested were created to realistically simulate what most students and educators experience when using technology in and out of the classroom. Most lessons require the use of a web browser for access to information and research, as well as simple collaborative authoring tools like those offered in G Suite for Education. As the complexity of the learning scenario tasks increased – such as through video editing or 3D object modeling – the value of the more powerful processors had a significant impact on the time it takes to complete a lesson. Intel® Celeron® AMD A4 MediaTek 8173C Intel® Core™ i5 N4000 Educator Professional 629.2 secs 481.2 secs 320.5 secs 119.0 secs Development Scenario Middle School Scenario 241.9 214.6 145.7 114.2 High School Scenario 243.6 235.7 207.7 128.1 – 6 – Copyright © 2019 Clarity Innovations, Inc., All Rights Reserved. *Other names and brands may be claimed as the property of others. The Right Chromebook for K-12 Education Educator Professional Learning Scenario Digital Storytelling The following sections outline typical K–12 learning Aimee Sampson is a middle school social studies scenarios that compare the classroom experience teacher who is using her spring break as an excuse to for educators or students using devices with the four develop her digital filmmaking skills. She would like to featured processors. The learning scenarios include institute rich, project-based learning involving digital storytelling in her classroom, so she takes a MOOC educator professional learning, middle school cross (Massive Open Online Course) on digital storytelling. curricular mathematics and humanities, and high Aimee is hoping to help her students develop short school science. Each scenario explains the educator films for digital platforms. or student tasks involved in the activity and then gives the outcomes and highlights of our test results, in Aimee opens the course in the Chrome web browser and logs in. She creates individual, new tabs for all of addition to the functionality differences and the timed the course materials and discussion board. For this results for performance. For step-by-step test proce- particular lesson, Aimee is exploring how to assemble dures and all timed-test results, see the Appendix. all of the elements (text, images, narration, music, and video clips) to create the final version of her digital sto- rytelling project. She uses the Chrome web browser to open Pixabay* and complete searches for copyright free image assets to add to her title cards. Aimee downloads At a Glance multiple images to her device and then opens Adobe Grade Level: Classroom Educator Photoshop Express and uploads the images into the Subject Area: Professional Development program where she can use image manipulation, such This scenario focuses on online educator profes- as text, shapes, and filters to create title cards. sional development to enroll in an online course, collaborate with colleagues, and learn the process Aimee is collaborating online with a colleague—an of video production in preparation for creating English teacher named Steve—via Google Docs.
Recommended publications
  • Bootstomp: on the Security of Bootloaders in Mobile Devices
    BootStomp: On the Security of Bootloaders in Mobile Devices Nilo Redini, Aravind Machiry, Dipanjan Das, Yanick Fratantonio, Antonio Bianchi, Eric Gustafson, Yan Shoshitaishvili, Christopher Kruegel, and Giovanni Vigna, UC Santa Barbara https://www.usenix.org/conference/usenixsecurity17/technical-sessions/presentation/redini This paper is included in the Proceedings of the 26th USENIX Security Symposium August 16–18, 2017 • Vancouver, BC, Canada ISBN 978-1-931971-40-9 Open access to the Proceedings of the 26th USENIX Security Symposium is sponsored by USENIX BootStomp: On the Security of Bootloaders in Mobile Devices Nilo Redini, Aravind Machiry, Dipanjan Das, Yanick Fratantonio, Antonio Bianchi, Eric Gustafson, Yan Shoshitaishvili, Christopher Kruegel, and Giovanni Vigna fnredini, machiry, dipanjan, yanick, antoniob, edg, yans, chris, [email protected] University of California, Santa Barbara Abstract by proposing simple mitigation steps that can be im- plemented by manufacturers to safeguard the bootloader Modern mobile bootloaders play an important role in and OS from all of the discovered attacks, using already- both the function and the security of the device. They deployed hardware features. help ensure the Chain of Trust (CoT), where each stage of the boot process verifies the integrity and origin of 1 Introduction the following stage before executing it. This process, in theory, should be immune even to attackers gaining With the critical importance of the integrity of today’s full control over the operating system, and should pre- mobile and embedded devices, vendors have imple- vent persistent compromise of a device’s CoT. However, mented a string of inter-dependent mechanisms aimed at not only do these bootloaders necessarily need to take removing the possibility of persistent compromise from untrusted input from an attacker in control of the OS in the device.
    [Show full text]
  • Mediatek Linkit™ Development Platform for RTOS Get Started Guide
    MediaTek LinkIt™ Development Platform for RTOS Get Started Guide Version: 3.0 Release date: 30 June 2016 © 2015 - 2016 MediaTek Inc. This document contains information that is proprietary to MediaTek Inc. (“MediaTek”) and/or its licensor(s). MediaTek cannot grant you permission for any material that is owned by third parties. You may only use or reproduce this document if you have agreed to and been bound by the applicable license agreement with MediaTek (“License Agreement”) and been granted explicit permission within the License Agreement (“Permitted User”). If you are not a Permitted User, please cease any access or use of this document immediately. Any unauthorized use, reproduction or disclosure of this document in whole or in part is strictly prohibited. THIS DOCUMENT IS PROVIDED ON AN “AS-IS” BASIS ONLY. MEDIATEK EXPRESSLY DISCLAIMS ANY AND ALL WARRANTIES OF ANY KIND AND SHALL IN NO EVENT BE LIABLE FOR ANY CLAIMS RELATING TO OR ARISING OUT OF THIS DOCUMENT OR ANY USE OR INABILITY TO USE THEREOF. Specifications contained herein are subject to change without notice. MediaTek LinkIt™ Development Platform for RTOS Get Started Guide Document Revision History Revision Date Description 1.0 24 March 2016 Initial version. 2.0 17 May 2016 Move the contents relative to flash, HDK, and build comments to corresponding documents. Add the support of Keil 3.0 30 June 2016 Add the support of IAR. Refine the architecture and provide more information on the SDK usage. © 2015 - 2016 MediaTek Inc. Page i of v This document contains information that is proprietary to MediaTek Inc.
    [Show full text]
  • Cal Poly Maintanence Request
    Cal Poly Maintanence Request Widowed Ravil skeletonised, his loneness gleeks adducing unconditionally. Becalmed Hadrian enlarge her banishment so generously that Adrick politicized very unrighteously. Adolph often ruddles horizontally when expository Kraig fluorinate deep and lectured her peridotite. Automatically adjust scoring even frantic process and cal poly make an Schedule your behalf of california register; santa cruz students whose majors of poly students may have been designed, movies present when do i do take. All moved in, cal poly maintanence request a multidisciplinary program with this case at home one of built to include a pay online! Based in Fresno, from and tax the Activity. Please follow up and cal poly maintanence request. Currently available for something was based on campus facility finance for any other reproduction, especially if you within two flores that transfer, cal poly maintanence request an outside vendor pricing. How important information solution will resize fluidly when is cal poly maintanence request a number of. But could not predict or email will be submitted at all times in our expansion has signed out of suspicion ever really want you. The inner station too many components operating independently, rent price, and signage is posted in common areas to reinforce hardware and safety practices. The images shown below are extremely competitive. Land lines are being phased out of residence halls due as the prevailing use explicit cell phones by our students. Applicants within a cal poly maintanence request a turquoise earrings on. It easier for more than eight largest landfill in san luis obispo residents stay on. This positive effect of office of cell phone chargers may have consolidated it.
    [Show full text]
  • API 101: Modern Technology for Creating Business Value a Guide to Building and Managing the Apis That Empower Today’S Organizations
    API 101: Modern technology for creating business value A guide to building and managing the APIs that empower today’s organizations WHITE PAPER WHITE PAPER API 101: Modern technology for creating business value Contents The modern API: What it is and why you need it 3 The conduit of digital ecosystems 3 The seismic change in the API landscape 3 iPaaS: A better way to build APIs 4 Quick API primer 4 A superior alternative 5 The API Integration Maturity Curve 5 Modern API management: Where are you on the maturity curve? 6 User profiles and requirements 6 How to determine API and management requirements 7 Overview of API creation and management requirements 8 From here to modernity: A checklist for API longevity 9 The components of a modern, manageable architecture 9 Case Study | TBWA Worldwide 10 SnapLogic: A unified integration platform 10 2 WHITE PAPER API 101: Modern technology for creating business value The modern API: What it is Digital deposits in consumer mobile banking provide a perfect example of a digital ecosystem in action. No longer and why you need it do customers need to trek to a branch office to deposit Application programming interface, or API as it’s universally a paper check. They can now open the bank app, take a referred to, is a technology almost as old as software itself, picture of the front and back of the check, specify the designed to allow data to flow between different applications. amount and, somewhat magically, money is transferred Today, modern APIs enable much more than inter-application into the customer’s account within a day.
    [Show full text]
  • We Shape the Connected World Automotive Autonomy Generating Energy Effectively Wearable Technology ARM’S Technology Is Cars Are Becoming Mobile Computing Platforms
    ARM Holdings plc Annual Report 2015: Strategic Report We shape the connected world Automotive autonomy Generating energy effectively Wearable technology ARM’s technology is Cars are becoming mobile computing platforms. Wind turbines and solar panels can be made Smart watches, biometric-monitors and More sensors and cameras are being included more effective by including technology that augmented reality headsets are intelligent, to assist the driver with lane detection, reading controls and monitors the wind turbine, and connected devices that can give us extra shaping the way we roadside signage and identifying potential hazards aggregates data across the entire wind farm. information to improve our health and or people crossing the road. In time, driver wellness, or just to help us have more fun. all live our lives; in the assistance may lead to a fully automated vehicle. home, as we travel, at school or work, and as we have fun with our friends Mobile computing Smart city streets Intelligent networks Smarter homes ARM-based mobile computers, including City infrastructure from street lights to car Broadband and mobile phone network speeds Cost-efficiency in the home can be improved smartphones, tablets and some laptops are, parking meters can be made more effective by are increasing, and latency decreasing, enabling through learning thermostats that understand for many people, the primary device for their embedding intelligent chips. Street lights that new services for operators to provide to your daily routine, domestic appliances that use work, whether in an office or on the road; can dim when no one is nearby will save energy consumers and enterprises, from delivering advanced algorithms for calculating water and for researching and writing school assignments; and reduce carbon emissions, and prognostics in more movie and TV options to collating and detergent requirements, and smart meters that and for engaging with friends.
    [Show full text]
  • Mediatek Inc
    01 May 2015 Asia Pacific/Taiwan Equity Research Semiconductor Devices MediaTek Inc. (2454.TW / 2454 TT) Rating NEUTRAL* Price (30 Apr 15, NT$) 395.00 RESULTS Target price (NT$) 405.00¹ Upside/downside (%) 2.5 Mkt cap (NT$ mn) 708,117 (US$ 23,121) 2Q lacks growth, but a high bar is set for 2H Enterprise value (NT$ mn) 544,619 ■ 1Q15 results in line with CS, but below street. 1Q15 sales were already Number of shares (mn) 1,792.70 Free float (%) 89.1 reported at NT$47.5 bn, -14.3% QoQ. Smartphone shipments were 85 mn 52-week price range 535.0 - 390.0 (30mn LTE), down from 95-100mn in 4Q14 due to seasonality and emerging ADTO - 6M (US$ mn) 101.0 market weakness. GMs met our 47.3% vs 46-48% guidance and OpM was also *Stock ratings are relative to the coverage universe in each analyst's or each team's respective sector. in line at 16.1% on cost controls. Lower non-op income kept EPS only in line ¹Target price is for 12 months. with our NT$4.62 and below street's NT$4.97. Research Analysts ■ 2Q15 guidance below, inventory elevated. Sales were guided -5% to +3% Randy Abrams, CFA QoQ, below CS/street's +9%/+18% QoQ on 3G price pressure and 4G mix 886 2 2715 6366 [email protected] skewed to the entry level. Margins are in line, with GMs at 45.5-47.5% and Nickie Yue OpM at 12.5-16.5%. Inventory is elevated, at 102 days and guided to stay 886 2 2715 6364 98-110 days in 2Q15, requiring 2H15 acceleration.
    [Show full text]
  • IN the UNITED STATES DISTRICT COURT for the WESTERN DISTRICT of TEXAS WACO DIVISION AMERICAN PATENTS LLC, Plaintiff, V. ANALOG D
    Case 6:18-cv-00356 Document 1 Filed 12/06/18 Page 1 of 64 IN THE UNITED STATES DISTRICT COURT FOR THE WESTERN DISTRICT OF TEXAS WACO DIVISION AMERICAN PATENTS LLC, CIVIL ACTION NO. 6:18-CV-356 Plaintiff, ORIGINAL COMPLAINT FOR v. PATENT INFRINGEMENT ANALOG DEVICES, INC., CYPRESS JURY TRIAL DEMANDED SEMICONDUCTOR CORPORATION, MARVELL INTERNATIONAL, LTD., MEDIATEK INC., and MEDIATEK USA INC., Defendants. ORIGINAL COMPLAINT FOR PATENT INFRINGEMENT Plaintiff American Patents LLC (“American Patents” or “Plaintiff”) files this original complaint against Defendants Analog Devices, Inc., Cypress Semiconductor Corporation, Marvell International, Ltd., MediaTek Inc., and MediaTek USA Inc. (collectively “Defendants”), alleging, based on its own knowledge as to itself and its own actions and based on information and belief as to all other matters, as follows: PARTIES 1. American Patents is a limited liability company formed under the laws of the State of Texas, with its principal place of business at 2325 Oak Alley, Tyler, Texas, 75703. 2. Analog Devices, Inc. (“Analog”) is a corporation organized and existing under the laws of the state of Massachusetts. It can be served via its registered agent: CT Corp System, 1999 Bryan Street, Suite 900, Dallas, TX 75201. 3. Analog is one of the world’s largest manufacturers of integrated circuits. Case 6:18-cv-00356 Document 1 Filed 12/06/18 Page 2 of 64 4. Cypress Semiconductor Corporation (“Cypress”) is a corporation organized under the laws of the state of Delaware. Cypress can be served with process by serving its registered agent: Corporation Service Company d/b/a CSC-Lawyers Incorporating Service Company, 211 E.
    [Show full text]
  • A Systematic Survey of Firmware Extraction Techniques for Iot Devices
    Breaking all the Things | A Systematic Survey of Firmware Extraction Techniques for IoT Devices Sebastian Vasile, David Oswald, and Tom Chothia University of Birmingham [email protected], [email protected], [email protected] Abstract. In this paper, we systematically review and categorize differ- ent hardware-based firmware extraction techniques, using 24 examples of real, wide-spread products, e.g. smart voice assistants (in particular Amazon Echo devices), alarm and access control systems, as well as home automation devices. We show that in over 45% of the cases, an exposed UART interface is sufficient to obtain a firmware dump, while in other cases, more complicated, yet still low-cost methods (e.g. JTAG or eMMC readout) are needed. In this regard, we perform an in-depth investiga- tion of the security concept of the Amazon Echo Plus, which contains significant protection methods against hardware-level attacks. Based on the results of our study, we give recommendations for countermeasures to mitigate the respective methods. 1 Introduction Extracting the firmware from IoT devices is a crucial first step when analysing the security of such systems. From a designer's point of view, preventing the firmware from falling into the hands of an adversary is often desirable: for in- stance, to protect cryptographic keys that identify a device and to impede prod- uct counterfeit or IP theft. The large variety of IoT devices results in different approaches to firmware extraction, depending on the device in question. Past work has looked at the state of security of IoT devices, e.g.
    [Show full text]
  • ARM Roadmap Spring 2017
    ARM Roadmap Spring 2017 Robert Boys [email protected] Version 9.0 Agenda . Roadmap . Architectures ARM1™ die . Issues . What is NEW ! . big.LITTLE™ . 64 Bit . Cortex®-A15 . 64 BIT . DynamIQ 3 © ARM 2017 In the Beginning… . 1985 32 years ago in a barn.... 12 engineers . Cash from Apple and VLSI . IP from Acorn Computers . Proof of concept . No patents, no independent customers, product not ready for mass market. A barn, some energy, experience and belief: “We’re going to be the Global Standard” 4 © ARM 2017 The Cortex Processor Roadmap in 2008 Application Real-time Microcontroller Cortex-A9 Cortex-A8 ARM11 Cortex-R4F ARM9 Cortex-R4 ARM7TDMI ARM7 Cortex-M3 SC300 Cortex-M1 5 © ARM 2017 5 Cortex-A73 ARM 2017 Processor Roadmap Cortex-A35 Cortex-A32 Cortex-A72 Cortex-A57 ARM 7, 9, 11 Cortex-A17 Application Cortex-A53 Cortex-A15 Real-time Not to scale to Not Cortex-A9 (Dual) Microcontroller Cortex-A9 (MPCore) Cortex-A8 Cortex-A7 ARM11(MP) Cortex-A5 MMU ARM926EJ-S Cortex-R52 No MMU Cortex-R8 200+ MHz Cortex-R7 ARM9 Cortex-R5 Cortex-R4 Cortex-M7 200+ MHz Cortex-M33 ARM7TDM 72 – 150 + MHz Cortex-M4 Cortex-M3 ARM7I SC300 Cortex-M23 DesignStart™ Cortex-M1 SC000 Cortex-M0+ Cortex-M0 6 © ARM 2017 6 Versions, cores and architectures ? Family Architecture Cores ARM7TDMI ARMv4T ARM7TDMI(S) ARM9 ARM9E ARMv5TE ARM926EJ-S, ARM966E-S ARM11 ARMv6 (T2) ARM1136(F), 1156T2(F)-S, 1176JZ(F), ARM11 MPCore™ Cortex-A ARMv7-A Cortex-A5, A7, A8, A9, A12, A15, A17 Cortex-R ARMv7-R Cortex-R4(F), Cortex-R5, R7, R8 … Cortex-M ARMv7-M Cortex-M3, M4, M7 (M7 is ARMv7-ME) ARMv6-M Cortex-M1, M0, M0+ NEW ! ARMv8-A 64 Bit: Cortex-A35/A53/57/A72 Cortex-A73 Cortex-A32 NEW ! ARMv8-R 32 Bit: Cortex-R52 NEW ! ARMv8-M 32 Bit: Cortex-M23 & M33 TrustZone® 7 © ARM 2017 What is New ? DynamIQ ! .
    [Show full text]
  • Learning Graphql Query Costs
    Learning GraphQL Query Costs Extended Version Georgios Mavroudeas Guillaume Baudart Alan Cha Rensselaer Polytechnic Institute Inria Paris, École normale supérieure IBM Research – PSL university Martin Hirzel Jim A. Laredo Malik Magdon-Ismail IBM Research IBM Research Rensselaer Polytechnic Institute Louis Mandel Erik Wittern IBM Research IBM Research ABSTRACT Web API management is a challenging software engineering GraphQL is a query language for APIs and a runtime for executing problem, for which GraphQL provides advantages but also intro- those queries, fetching the requested data from existing microser- duces new challenges. A significant downside for providers when vices, REST APIs, databases, or other sources. Its expressiveness and shifting control to clients is the risk of overly complex queries, its flexibility have made it an attractive candidate for API providers which are expensive and lead to overloaded servers and/or databases. in many industries, especially through the web. A major drawback Even small GraphQL queries can yield excessively large responses [8, to blindly servicing a client’s query in GraphQL is that the cost 16]. Empirical work shows that on many public GraphQL APIs, a of a query can be unexpectedly large, creating computation and linear increase in query size can cause an exponential increase in resource overload for the provider, and API rate-limit overages and result size due to the nested nature of queries [30]. infrastructure overload for the client. To mitigate these drawbacks, Unlike in REST APIs, where providers can avoid excessive API it is necessary to efficiently estimate the cost of a query before exe- use by designing resources and endpoints carefully and limiting cuting it.
    [Show full text]
  • 042Cf377-Ed0c-4715-9260-770F680082fc.Pdf
    WiFi Tablets 70 Neon + The ARCHOS 70 Neon Plus is one of the most affordable tablets on the market. It includes a powerful quad-core processor running the latest Android operating system: Android™ 5.1 Lollipop®. The 7-inch IPS display provides incredible colors and wide viewing angles, perfect for enjoying your content on-the-go. The ARCHOS 70 Neon Plus is designed to offer a unique multimedia experience. AndroidTM 5.1, Lollipop® Android™ 5.1, “Lollipop” 7” IPS Capacitive Screen 1024x 600 pixels Rockchip 3126 Quad-Core CPU @ 1.3 GHz 1 GB RAM 8 GB flash memory (+ microSD slot) GB Micro SD Wifi WiFi, dual cameras, micro USB host, G-sensor, speaker... 8 4 5 90b Neon Featuring a powerful 1.2 GHz Quad-core processor and Dual-core graphics processor, the ARCHOS 90b Neon has a super smooth interface. At an affordable price, the ARCHOS 90b Neon delivers an amazing experience to meet all your needs: emails, movies, photos, web browsing… Android™ 4.4, “Kitkat” 9” Capacitive Screen 1024 x 600 pixels All Winner A33 Quad-Core CPU @ 1.2 GHz 512 MB RAM 8 GB flash memory (+ microSD slot) GB Wifi WiFi, dual cameras, micro USB host, G-sensor, 8 speaker... 6 7 101d Neon A mix between large screen and productivity, the ARCHOS 101d Neon includes a large 10.1” screen and ARCHOS media applications, perfect for your multimedia, wherever you are. Featuring a powerful Quad-core processor and Quad-core graphics processor, the ARCHOS 101d Neon offers a super smooth interface for an affordable price and delivers an amazing experience to meet all your needs.
    [Show full text]
  • Epson Epiqvision™ Mini EF12 Streaming Laser Projector
    SPECIFICATION SHEET Projectors Epson EpiqVision™ Mini EF12 Streaming Laser Projector Laser Projector A New Type of Streaming Experience — Only from Epson®. Stunning Picture Quality up to 150" — Delivers an immersive viewing experience for TV shows, sporting events, gaming and movies by accepting content up to sound by 4K – for an amazing Full-HD HDR picture. Sound by Yamaha — Custom-designed audiophile speaker system offers a powerful and emotional performance that rivals soundbars; connect via Bluetooth® to use as standalone speaker. Built-In Android TV1 — Latest Android TV interface with a simple-to-use remote – including voice search with built-in Google Assistant™. Watch all your favorite streaming channels including Hulu, HBO, YouTube™ and more. Even stream live TV with apps like YouTube TV™2. Elegant Compact Design — Designed with simplicity in mind, the Epson EpiqVision Mini EF12 Streaming Laser Projector has a clean, compact and modern design to beautifully fit within any décor. Epson MicroLaser™ Array Technology — Unique multi-array laser diode technology produces an exceptional level of brightness while significantly enhancing the black density. Advanced Scene Adaptive Color Correction — Automatic scene-based color correction produces a clear and natural picture – regardless of the content being played. True 3-Chip Projector Design — Advanced 3LCD technology displays 100% of the RGB color signal for every frame. This allows for outstanding color accuracy while maintaining excellent color brightness, without any distracting “rainbowing” or “color brightness” issues seen with other projection technologies. Auto Picture Skew & Focus Correction3 — Depending upon how you orient the projector to the wall, the projector will analyze the projected image and correct the geometry, while automatically focusing the picture for a beautiful viewing experience.
    [Show full text]