coursera iot course. This course aims at introducing IoT Cloud platforms from Samsung, Microsoft, Amazon, IBM and Google and how they can be used in developing IoT applications. coursera iot course

 
 This course aims at introducing IoT Cloud platforms from Samsung, Microsoft, Amazon, IBM and Google and how they can be used in developing IoT applicationscoursera iot course Coursera Introduction to Programming the Internet of Things (IOT) Specialization

Scrape and analyze data analyst job requirements with Python: Coursera Project Network. This course will introduce you to the Internet of Things and then explore Amazon Web Services’ IoT services, and then expert instructors will dive deep into topics such as the. Learn new concepts from industry experts. Learn Iot online with courses like An Introduction to Programming the Internet of Things (IOT) and Hands-on Internet of Things. The Raspberry Pi Platform and Python Programming for the Raspberry Pi: University of California, Irvine. Search Coursera Quiz Answers Here Google Cloud Fundamentals: Core Infrastructure Coursera Quiz Answers Cloud Computing Basics (Cloud 101) Quiz Answers Industrial IoT on Google Cloud Platform Coursera Quiz Answers Google Cloud Platform Big Data and Machine. " Chaitanya A. Week 1: Course Orientation and Networking Devices Part 1. This specialization introduces blockchain, a revolutionary technology that enables peer-to-peer transfer of digital assets without any intermediaries, and is predicted to be just as impactful as the Internet. Provides free career advice and connects you to jobs via a Matching Engine. Here you will begin to learn enterprise IoT. IoT course offerings range from introductory to advanced levels, and some are even free. State the technological trends which have led to IoT 3. ) to get your IoT device to interact with the real world. Try to grasp the concept in that case. After completing this course, you will have knowledge of both hardware components and operating systems. Enumerate and describe the components of an embedded system 6. When you enroll in this course, you'll also be enrolled in this Specialization. This course can also be taken for academic credit as ECEA 5348, part of CU Boulder’s Master of Science in Electrical Engineering degree. Instructor: Ian Harris. In the final Capstone Project, you’ll apply the skills you learned by designing, building, and. Upon completing this course, you will be able to: 1. Overview. Upon completing this course, you will be able to: 1. Iot courses from top universities and industry leaders. Amazon Web Services. What you'll learn. Build job-relevant skills in under 2 hours with hands-on tutorials. In summary, here are 10 of our most popular web server courses. IBM Applied AI Professional Certificate. Learn Iot online with courses like An Introduction to Programming the Internet of Things (IOT) and Hands-on Internet of Things. Comparing to the human body, IoT is the neural network and the Cloud is the brain. Coursera's Industrial IoTIn summary, here are 10 of our most popular embedded systems courses. Prepare for an entry-level job as a. Students will learn IoT device programming (Arduino and Raspberry Pi), sensing and actuating technologies, IoT protocol stacks (Zigbee, 5G, NFC, MQTT, etc), networking backhaul design and security enforcement, data science for IoT, and cloud-based IoT. We would like to show you a description here but the site won’t allow us. Define the term “Internet of Things” 2. Comparing to the human body, IoT is the neural network and the Cloud is the. Arizona State University. This course builds on the first two courses in this series: IoT Devices and IoT. Outline the composition of the Arduino development board 2. Please note that this course does not include discussion forums. The course comprises altogether five modules and is split up into two main sections. Please note that this course does not include discussion forums. Learn React: Scrimba. Delft University of Technology. Learn Iot online with courses like An Introduction to Programming the Internet of Things (IOT) and Hands-on Internet of Things. This course builds on the first two courses in this series: IoT Devices and IoT. State the technological trends which have led to IoT 3. Portions of this course may seem extremely technical in nature. About this Guided Project. Delivered free through Infosys CSR commitment to empowering 10 million-plus people with digital skills by 2025, it provides a holistic set of courses, developed in collaboration with world-leading digital educators like Coursera and Harvard Business. Define what an embedded system is in terms of its interface 5. Introduction to Embedded Systems Software and Development Environments: University of Colorado Boulder. Developing tomorrow's industrial infrastructure is a significant challenge. 137 courses. Benefits of Azure certification. Welcome to the third IoT course. Outline the composition of the Arduino development board 2. In this specialization, you will engage the vast array of technologies that can be used to build an industrial internet of things deployment. Some content may not be translated. Upon completing this course, you will be able to: 1. Enroll here. We will explore Context-Based security controls. The 4 courses cover. Define the term “Internet of Things” 2. State the technological trends which have led to IoT 3. Learn Iot Internet Of Things online with courses like IoT (Internet of Things) Wireless & Cloud Computing Emerging Technologies and Introduction and Programming with IoT. Learn new concepts from industry experts. Arduino senses the environment by receiving inputs from add-on devices such as sensors, and can control the world around it by adjusting lights, motors, and other actuators. Enumerate and describe the components of an embedded system 6. Offered by University System of Georgia. You will start by learning key AWS Services for compute, storage, database, networking. The 4 courses cover details on Big Data (Hadoop, Spark, Storm), Smartphones, Smart. Learn Iot online with courses like An Introduction to Programming the Internet of Things (IOT) and Hands-on Internet of Things. Outline the composition of the Arduino development board 2. Introduction to Cloud Computing (Coursera) Introduction to Cloud Computing by IBM takes you through the core concepts you need to become a cloud practitioner. Define the term “Internet of Things” 2. Internet Internet Of Things (IOT) Wireless Front And Back Ends Details to know Shareable certificate Add to your LinkedIn profile Assessments 6 quizzes English Subtitles: Kazakh,. Iot courses from top universities and industry leaders. Offered by University of California, Irvine. Subtitles/captions in English and will be also provided. In this program, you’ll learn in-demand skills and tools used by professionals for front-end, back-end, and cloud native application development to get job-ready in less than 4 months, with no prior experience needed. Blockchain courses offered through Coursera enable learners to gain knowledge on foundational blockchain concepts; skill sets for designing and implementing smart contracts; methods for developing decentralized applications on the blockchain; and information about ongoing specific industry-wide blockchain frameworks. The course may offer 'Full Course, No Certificate' instead. In this 1-hour long project-based course, we will learn to create an IoT hub in the Azure cloud, register an IoT device within that IoT hub, send telemetry data from a raspberry pi web simulator to the IoT hub, create an Azure storage account and create stream analytics job with IoT hub as input and storage account as output so that we can store the sensor. Offered by University of California, Irvine. Portions of this course may seem extremely technical in nature. ¹. Portions of this course may seem extremely technical in nature. This course will help you to understand. In this specialization, you will engage the vast array of technologies that can be used to build an industrial internet of things deployment. Arduino senses the environment by receiving inputs from add-on devices such as sensors, and can control the world around it by adjusting lights, motors, and other actuators. Students will learn IoT device programming (Arduino and Raspberry Pi), sensing and actuating technologies, IoT protocol stacks (Zigbee, 5G, NFC, MQTT, etc), networking backhaul design and security enforcement, data science for IoT, and cloud-based IoT. Course Introduction • 9 minutes • Preview module. This course is the last course in our series of four courses and builds on the. Meta React Native: Meta. Compare how the telephone system works (that is, peer-to-peer networks) with how media delivery works (that is, broadcast/multicast networks). This course also examines message queueing, API design, and cloud connectivity. Segment 4 - Process: Architecture Definition, Design Planning • 13 minutes. You'll discover all the available hardware and software components,. This course offers a place to learn, reflect, and plan for a smart community approach to IoT. Course 3: Interfacing with the Arduino. IoT (Internet of Things, 사물인터넷)는 최근 중요한 정보통신기술로 주목. Enroll for free. Learn Data Science. 150 courses. Enroll for free. Introduction to Embedded Systems Software and Development Environments: University of Colorado Boulder. Describe the impact of IoT on society 4. Our Computer Science courses are perfect for individuals or for corporate Computer Science training to upskill your workforce. Take a look at 11 options for learning about IoT and related technologies. Add to list. IoT design. There are 5 modules in this course. This course is designed to enable "YOU" to create amazing IOT products and solutions from scratch all the way to the market. This course is part of the An Introduction to Programming the Internet of Things (IOT) Specialization. This course is number 5 of 6 in the Introduction to Programming the Internet of Things (IoT) Specialization and takes roughly 13 hours to complete. This course offers a place to learn, reflect, and plan for a smart community approach to IoT. This course is focused on giving you real world coding experience and hands on project work with ARM based Microcontrollers. This course is the last course in our series of four courses and builds on the previous three courses: IoT Devices, IoT Communications, and IoT Networking. Learn Iot online with courses like An Introduction to Programming the Internet of Things (IOT) and Hands-on Internet of Things. Upon completing this course, you will be able to: 1. Creating a IoT Hub and IoT device simulator. Please note that this course does not include discussion forums. The Introduction to Robotics Specialization introduces you to the concepts of robot flight and movement, how robots perceive their environment, and how they adjust their movements to avoid obstacles, navigate difficult terrains and accomplish complex tasks such as construction and disaster recovery. This course builds on the first two courses in this series: IoT Devices and IoT Communications. Week 1: Course Overview and Introduction to Radio Frequency Protocols. Try to grasp the concept in that case. Enterprise networks, from first-hop access to backend IoT services are critical because they allow your IoT devices to reach the Internet and achieve their true intelligence. Cybersecurity Attack and Defense Fundamentals: EC-Council. Coursera is one of the best places to go. Learn without limits. This course ends with projects that teach how to analyze Bluetooth and W-Fi wireless networks and setup and use an EC2 (Elastic Compute Cloud) Virtual Computer in AWS (Amazon Web Service), which is the most powerful and popular Cloud technology in the world. If a scheduling conflict arises, you are free to take a term off and won’t be charged during that term. Define what an embedded system is in terms of its interface 5. Upon completing this course, you will be able to: 1. Blockchain courses offered through Coursera enable learners to gain knowledge on foundational blockchain concepts; skill sets for designing and implementing smart. 2. Try to grasp the concept in that case. Course Content • 9 minutes. The courses and the Coursera certificate are not equivalent to. That is because the. This Specialization covers the development of Internet of Things (IoT) products and services—including devices for sensing, actuation, processing, and communication—to help you develop skills and experiences you can employ in designing novel systems. Learn more about Coursera for Business. 8 languages available. You'll discover all the available hardware and software components, such as processor families, operating systems, boards, and. 95% Useful course. This course will be offered in English. In summary, here are 10 of our most popular embedded c courses. The course will also cover programming the Arduino using C code and accessing the pins on the board via the software to control external devices. If you are interested in building secure embedded systems for the benefit of humanity, this. Describe the impact of IoT on society 4. Please note that this course does not include discussion forums. Coursera courses and certificates don't carry university credit, though some universities may choose to accept Specialization Certificates for credit. Iot courses from top universities and industry leaders. Configure Routing in Azure IoT Hub: Coursera Project Network. In summary, here are 10 of our most popular big data courses. Coursera's Industrial IoT In summary, here are 10 of our most popular embedded systems courses. By the end of this program, you will be. Pay-as-you-go You pay tuition only for courses you're enrolled in. The Bachelor of Science (Hons) in Data Science & AI programme offers two domains of expertise - Data Science and Artificial Intelligence. Learn Iot online with courses like An Introduction to Programming the Internet of Things (IOT) and Hands-on Internet of Things. In this course you will learn what Artificial Intelligence (AI) is, explore use cases and applications of AI, understand AI concepts and terms like machine learning, deep learning and neural networks. In this course, you'll learn about the characteristics of embedded systems: the possibilities, dangers, complications, and recipes for success. " Chaitanya A. State the technological trends which have led to IoT 3. Describe the impact of IoT on society 4. The course may not offer an audit option. A study of protocols and design practices for Machine to Machine (M2M) and Internet Of Things (IoT) communications between embedded devices. Offered by IBM. In summary, here are 10 of our most popular big data analytics courses. Module 1 • 3 hours to complete. The Intel® Developer Zone offers tools and how-to information to enable cross-platform app development through platform and technology information, code samples, and peer expertise in order to help developers innovate and succeed. Upon completing this course, you will be able to: 1. The course will also cover programming the Arduino using C code and accessing the pins on the board via the software to control external devices. In this first class in the specialization you will learn the importance of IoT in society, the current components of typical IoT devices and trends for the future. Microsoft Azure AI Fundamentals AI-900 Exam Prep: Microsoft. Learn Iot online with courses like An Introduction to Programming the Internet of Things (IOT) and Hands-on Internet of Things. Yes! To get started, click the course card that interests you and enroll. This Specialization covers embedded systems, the Raspberry Pi Platform, and the Arduino environment for building devices that can control the physical world. As a coursera certified specialization completer you will have a proven deep understanding on massive parallel data processing, data exploration and visualization, and advanced machine learning & deep learning. To identify IoT touchpoints with customer journey maps, you will gain hands-on experience applying design thinking, user interface knowledge, and context from each step of the customer journey in the Miro online visual collaboration platform for teamwork. BI Foundations with SQL, ETL and Data Warehousing: IBM. Offered by Yonsei University. Please also note that this course does not include discussion forums. Define what an embedded system is in terms of its interface 5. State the technological trends which have led to IoT 3. That is because the “things” in IoT represents engineering. Explain the state-of-the-art in privacy, ethics, governance around big data and data science 3. You'll discover all the available hardware and software components, such as processor families, operating systems, boards, and. Please note that this course does not include discussion forums. In this 1-hour guided project, you will create an IoT hub & an IoT device in Azure and use a Raspberry Pi web simulator to send telemetry data to the IoT hub. This course is the last course in our series of four courses and builds on the previous three courses: IoT Devices, IoT Communications, and IoT Networking. State the technological trends which have led to IoT 3. By presenting the building blocks of the IoT network architecture, this MOOC will help learners adapt to the fast changing communications and networking environment of IoT. With the Post Graduate Certificate in 5G Technology and IoT, you’ll build a comprehensive understanding of the underlying principles of advanced communication as they pertain to fifth-generation (5G) wireless communication in the 3rd Generation Partnership Project (3GPP). In order to reduce the time to market, many pre-made hardware and software components are available today. Upon completing this course, you will be able to: 1. We would like to show you a description here but the site won’t allow us. Upon completing this course, you will be able to: 1. Define what an embedded system is in terms of its interface 5. This specialization is intended for data scientists and software developers to create software that uses commonly available hardware. Each course teaches you the core concepts and skills that are. With the Post Graduate Certificate in 5G Technology and IoT, you’ll build a comprehensive understanding of the underlying principles of advanced communication as they pertain to fifth-generation (5G) wireless communication in the 3rd Generation Partnership Project (3GPP). Outline the composition of the Arduino development board 2. in short, you will recap all the core concepts and skills that are. Summarize features of AWS IoT Greengrass that provide customer value. Choose from a wide range of Computer Science courses offered from top universities and industry leaders. The course will also cover programming the Arduino using C code and accessing the pins on the board via the software to control external devices. Enumerate and describe the components of an embedded system 6. Define the term “Internet of Things” 2. In summary, here are 10 of our most popular ethical hacking courses. CS107: C++ Programming Saylor Academy. The course will also cover programming the Arduino using C code and accessing the pins on the board via the software to control external devices. Description: “This Specialization is intended for researchers and business experts seeking state-of-the-art knowledge in advanced science and technology. State the technological trends which have led to IoT 3. Describe the impact of IoT on society 4. Coursera Introduction to Programming the Internet of Things (IOT) Specialization. Leverage our Skills Dashboard to understand skill gaps and determine the most suitable course for upskilling your workforce effectively. Taught in English. Learn Iot online with courses like An Introduction to Programming the Internet of Things (IOT) and Hands-on Internet of Things. It covers topics such as network architectures and protocols, network security, and network management. Computer Architecture: Princeton University. Upon completing this course, you will be able to: 1. Developing Front-End Apps with React: IBM. This course builds on the previous course: IoT Devices. Overview. In summary, here are 10 of our most popular cyber physical systems courses. Configurable embedded processors and. 3. Enumerate and describe the components of an embedded system 6. Describe the impact of IoT on society 4. Across different business segments, increasing efficiency leads to overall more intelligent operations, higher profits, and satisfied customers. Take a look at how getting Azure certification can offer these benefits. Drive continuous learning with short videos, lessons, and hands-on. Learn Iot online with courses like Cybersecurity: Developing a Program for Your Business and Digital Technologies and the Future of Manufacturing. In summary, here are 10 of our most popular electronics courses. Instructor, University of California, Irvine Extension. Define the term “Internet of Things” 2. Iot courses from top universities and industry leaders. Lower training costs with in-demand content and trusted credentials from 300+ top companies and universities. Enroll for free. Learn Iot online with courses like Rapid Prototyping of Embedded Interface Designs and Energy Harvesting. The Internet of Things (IoT) stands to be the next revolution in computing. Offered by Meta. There is an optional fourth assignment for students who wish to build and demonstrate their system using an Arduino or Raspberry Pi. Learn Iot online with courses like An Introduction to Programming the Internet of Things (IOT) and Hands-on Internet of Things. Cisco Networking Academy is an IT skills and career building program for learning institutions and individuals worldwide. Gain highly-sought skills with the industry-aligned curriculum that includes certificates from leading partners, IBM, Meta, and Google. Foundational robotics courses may cover modeling, kinematics, and equations of motion, before moving on to more advanced topics such as planning and control. A university certificate price ranges $1,000-$3,000. You can sign up for the Interfacing with Raspberry Pi Course as a separate course, through the IoT Specialization, or using Coursera Plus. In the Capstone Project, you’ll apply everything you’ve learned by designing, building, and testing a microcontroller-based embedded system. Converting Between int, str, and float • 3 minutes. IoT courses offered through Coursera equip learners with knowledge in creating your own IoT device; programming languages and softwares for building IoT products; understanding the entire IoT network architecture; mastering key skills required to be employed in the industrial IoT space; and more. Outline the composition of the Arduino development board 2. (IOT), Coursera lets you learn on a flexible schedule and at a significantly lower cost than. Enumerate and describe the components of an embedded system 6. The Azure Fundamentals exam is an opportunity to prove knowledge of cloud concepts, Azure services, Azure workloads, security and privacy in Azure, as well as Azure pricing and support. Define what an embedded system is in terms of its interface 5. Upon completing this course, you will be able to: 1. Physical Science and Engineering. Master the key skills required to be employed in the Industrial Internet of Things space. There is an optional fourth assignment for students who wish to build and demonstrate their system using an Arduino or Raspberry Pi. Coursera's Industrial IoT This course is part of the University of Michigan’s Digital Technologies and the Future of Manufacturing Specialization. Please note that this course does not include discussion forums. Architecting smart IoT (Internet of Things) devices involves designing and developing interconnected devices that can collect and exchange data over the internet to perform various functions and tasks. Learn IoT from top-rated Udemy instructors. In addition, you can use Cooja simulation for designing and simulating wireless sensor. Learn how 5G is revolutionizing the business world and begin to understand how 5G can benefit your business by helping you meet your ever-evolving. Enumerate and describe the components of an embedded system 6. You can try a Free Trial instead, or apply for Financial Aid. 1700 Coursera Courses That Are Still Completely Free. In the final task, you will analyze. Outline the composition of the Arduino development board 2. This Specialization is intended for researchers and business experts seeking state-of-the-art knowledge in advanced science and technology. Topics include: low-level, personal and local area network, IoT application, and low-power wide area network protocols. Take a look at 11 options for learning about IoT and related technologies. Internet of Things (IoT) - The Mega Course. AWS Training and Certification has launched two new self-paced digital courses, Introduction to AWS Identity and Access Management and AWS IoT: Developing and Deploying an Internet of Things, on edX and Coursera. Define the term “Internet of Things” 2. On-Demand. Upon completing this course, you will be able to: 1. . This beginner-level, six-course certificate, developed by Google, is designed to provide IT professionals with in-demand skills -- including Python, Git, and IT automation -- that can help you advance your career. This five-week course takes you on a comprehensive journey from understanding the imperative of well. Upon completing this course, you will be able to: 1. 8 languages available. Choose from hundreds of free courses or pay to earn a Course or Specialization Certificate. Describe the impact of IoT on society 4. Enterprise networks, from first-hop access to backend IoT services are critical because they allow your IoT devices to reach the Internet and achieve their true intelligence. Define the term “Internet of Things” 2. Comparing to the human body, IoT is the neural network and the Cloud is the brain. Note: This course works best for learners who are based in the North America region. We will also learn to monitor the messages that are. Comparing to the human body, IoT is the neural network and the Cloud is the brain. Free Online Course (Audit) Load the next 15 courses of 72. Introduction to Databases. This Specialization has 6 courses: Course 1: Introduction to the Internet of Things and Embedded Systems. This course ends with projects that teach how to analyze Bluetooth and W-Fi wireless networks and setup and use an EC2 (Elastic Compute Cloud) Virtual Computer in AWS (Amazon Web Service), which is the most powerful and popular Cloud technology in the world. This course builds on the previous course: IoT Devices. Offered by University of Illinois at Urbana-Champaign. Define what an embedded system is in terms of its interface 5. There are 8 modules in this course. Structuring if Statements • 6 minutes. Please note that this course does not include discussion forums. The benefits of Azure certification include the ability to grow in your career, access to flexible career options, the potential to earn a higher salary, sharper skills, and improved security offerings for your employer. Enumerate and describe the components of an embedded system 6. UCI’s unyielding commitment to rigorous academics, cutting-edge research,. Offered by University of Illinois at Urbana-Champaign. State the technological trends which have led to IoT 3. Iot courses from top universities and industry leaders. Gain a foundational understanding of a subject or tool. A good course to learn an IOT basic and with embedded systems. We would like to show you a description here but the site won’t allow us. Joining this course presents opportunity to learn about energy harvesting that refers to a technology that converts the energy discarded in our daily lives into useful electrical energy that we can use. FPGA System engineering, software-hardware integration,. Developing tomorrow's industrial infrastructure is a significant challenge. Take the next step toward your personal and professional goals with Coursera. There are 5 modules in this course. Many languages can be used but Python is the most convenient for the Raspberry Pi because convenient APIs are provided for basic operations such as controlling the pins. There are 4 modules in this course. Cisco’s CEO stated: “IoT overall is a $19 Trillion market. We will discuss rules, protocols, and standards for these devices to. Join over 3,400 global companies that choose Coursera for Business. Starts Nov 12. This course teaches a deep understanding of IoT technologies from the ground up. Routing Messages Using IoT Hub. Understand the basics of IIoT, including its applications in manufacturing and business consideration for this technologies. This is the sixth course in the Digital Manufacturing & Design Technology specialization that explores the many facets of manufacturing’s “Fourth Revolution,” aka Industry 4. Enumerate and describe the components of an embedded system 6. Our Software Development courses are perfect for individuals or for corporate Software Development training to upskill your workforce. Intermediate. When you enroll in this course, you'll also be enrolled in this Specialization. 3. For both machine and user interfaces, we will look at the best practices for the interface design process. Meta Front-End Developer: Meta. Cybersecurity Operations Fundamentals: Cisco Learning and Certifications. Configure Routing in Azure IoT Hub: Coursera Project Network. Ethical Hacking Essentials (EHE): EC-Council. Define the term “Internet of Things” 2. Introduction to Big Data with Spark and Hadoop: IBM. : University of California, Irvine. Describe the impact of IoT on society 4. Big data analytics is important because it helps companies leverage their data to identify opportunities for improvement and optimization. Define what an embedded system is in terms of its interface 5. Iot courses from top universities and industry leaders. Create a system-level design 3. Define what an embedded system is in terms of its interface 5. Learn Internet of Things (IoT) or improve your skills online today. This course also examines message queueing, API design, and cloud. This course teaches a deep understanding of IoT technologies from the ground up. Introduction to the Internet of Things and Embedded Systems University of California, Irvine via Coursera The explosive growth of the “Internet of Things” is changing our world and the rapid drop in price for typical IoT components is allowing people to innovate new designs and products at home. Describe the impact of IoT on society 4. Please note that this course does not include discussion forums. This also means that you will not be able to purchase a Certificate experience. A good place for IT and other professionals to get started with IoT is to take a course such as one of the following: 1. Define the term “Internet of Things” 2. As we all know, most of low-power electronics, such as remote sensors, are driven by batteries. Here you will begin to learn enterprise IoT. Network Automation Engineering Fundamentals: Cisco Learning and Certifications. Learn how to make devices run on a low power supply. IoT is considered to be an essential part of the 4th Industrial Revolution along with AI and Big Data. Introduction to Digital Health. Iot courses from top universities and industry leaders. Describe the impact of IoT on society 4. Enroll for free. The introduction of Smart urban technologies into legacy infrastructures has resulted in numerous challenges and opportunities for contemporary cities and will continue to do so. In this class you will learn how to use these protocols with other external devices (sensors, motors, GPS, orientation, LCD screens etc. This course is the last course in our series of four courses and builds on the. AI For Business: University of Pennsylvania. The course is a combination of online lectures, videos, readings and discussions. Check with your institution to learn more. Coursera is one of the best.