Online courses directory (10358)

This course explores the concept of online reputation and its potential impact on participants

How to setup and manage an online registration system with LeagueAthletics.com's Sports Management Software.

This article provides information about online and email counseling as viable alternatives to face-to-face therapy. As t

Open education and open educational resources are deeply influencing and transforming the educational environment. This course offers a practitioner’s view of open education, open educational resources, repositories and applications for educators and professionals.

This 4-week course is designed to provide a comprehensive understanding of the ways in which open education and open educational resources are changing the rules of education. The purpose of the course is to help faculty and professionals dedicated to education to understand the advantages of open education and how they can apply it to their everyday teaching.
 
No previous knowledge is necessary. Join us as you start your open education journey.

How can governments become more open and transparent, while simultaneously dealing with various challenges, such as data sensitivity? How can open government data be made available to improve public policy making? Which technologies are available to make governments more open and  use open government data?

Governments all over the world aim to become more open and transparent in order to establish closer ties with their constituents. However, releasing government data involves complex challenges and poses two major concerns. First, many different participants are involved and there are various dependencies between them, and second, the technologies that support open government are fragmented. In addition, it is unclear how different contexts should alter the best practices for open government.

This course explores the foundations and objectives of Open Government and examines current developments, including the opening and reuse of governmental data such as the release of data by governments in America and Europe.

This course will empower you by helping you grasp the key principles surrounding open government.

The topics of the course are applied to concrete cases, which you will be asked to analyze and discuss with your peers.

This course may be of interest to the following:

• Students interested in the basics of open government, in data-driven governance and data-driven research
• Professionals or researchers working on open government research and interested in strategies and challenges for opening governments
• Professionals or researchers working on open data research or open data initiatives
• Professionals and researchers working on topics related to public values, including transparency and privacy, in a governmental context
• Senior administrators, policy advisors, government officials or agency members, who are interested in how ICTs change governments and how ICTs can be used in public administrations

LICENSE
The course materials of this course are Copyright Delft University of Technology and are licensed under a Creative Commons Attribution-NonCommercial-ShareAlike (CC-BY-NC-SA) 4.0 International License.

If you have a passion for penning pop hits, dream of dabbling in dubstep, or just want to jump in and jam, this is the course for you! No matter how much experience you have, join our learning community and start writing your own songs.

Open source, open data, open access, open education -- Open Knowledge provides an introduction to the concept of openness and asks you to discover what it means to you.

This course studies fundamental design and implementation ideas in the engineering of operating systems. Lectures are based on a study of UNIX and research papers. Topics include virtual memory, threads, context switches, kernels, interrupts, system calls, interprocess communication, coordination, and the interaction between software and hardware. Individual laboratory assignments involve implementation of a small operating system in C, with some x86 assembly.

In this free online course Operating Systems - Introduction to Memory Management you will learn about the different models for memory management. You will learn about virtual memory and segmentation the more modern versions of memory management compared to the models. You will learn about booting up a computer system and how and what it loads up till it gets to the user’s process.<br /><br />The course begins by introducing you to memory management in a computer system. You will learn about the single contiguous model and the partition model for memory management. You will learn about virtual memory, its structure and how the virtual address is mapped to a physical one.<br /><br />Next, you will be introduced to segmentation. You will learn how segmentation is more logical in dividing up a process compared to virtual memory. You will also learn how segmentation maps to physical addresses. You will learn about the structure of the xv6 operating systems memory and about the booting process when a computer system is powered on.<br /><br />This course would be of great interest to computer science students and computer engineers, and anyone who wants to learn more about memory management in computer operating systems.<br /><br />Perquisites: Learner will need to have completed the previous course Introduction to Operating Systems.

In the free online course Operating Systems - Introduction to Scheduling you will learn about scheduling processes in an operating system. The course also reviews methods for scheduling with a single processer, multi-processers, and scheduling in a Linux operating system.<br /><br />The course begins by introducing you to process scheduling. You will learn about the two types or classifications for processes: first come first serve scheduling and its advantages and disadvantages, and other scheduling techniques such as Shortest job first and Round Robin scheduling and what they involve. You will learn about priority based scheduling and about setting priorities for your processes, and techniques for multi-processer scheduling and how they work.<br /><br />Next, you will be introduced to scheduling in a Linux operating system. You will learn how Linux classifies processes into real time and normal processes, about the different schedulers Linux has used in their systems and how they work. The course also covers Completely fair scheduling (CFS), the main scheduler used in Linux currently, and how the CFS selects processes for running.<br /><br />This free Alison course will be of great interest to computer science students and computer engineers, and anyone who wants to learn about scheduling in computer operating systems<br /><br />Perquisites: The learner will need to have completed the previous courses: Introduction to Operating Systems, Introduction to Memory Management, Introduction to Operating Systems Processes and Introduction to Operating Systems Interrupts.

In the free online course Operating Systems - Introduction to Synchronization you will learn about Inter-process Communication (IPC) for process communication and data sharing. The course also introduces you to shared memory, message passing and signals all methods for IPC. <br /><br />You will learn about the critical section and problems accessing the critical section. You will learn about ways to access the critical section and how hardware can also help accessing it. <br /><br />The course begins by introducing you to Inter Process Communication (IPC). You will learn the main ways processes share data and communicate with each other. The course then introduces process synchronization and the Critical section, how to access the critical section using interrupts and build your own solution.<br /><br />Next, you will be introduced to the bakery algorithm, which is another method for accessing the critical section. You will learn about how hardware can help with accessing the critical section, and about the test &amp; set instruction, why Intel doesn’t support it but instead has its own xchg instruction. You will learn about Spinlocks, Mutexes and Semaphores and how they help with accessing the critical section. <br /><br />This free Alison course will be of great interest to computer science students and computer engineers, and anyone who wants to learn about Inter-process communication in computer operating systems.<br /><br />Perquisites: The learner will need to have completed the previous courses; Introduction to Operating Systems, Introduction to Memory Management, Introduction to Operating Systems Processes, Introduction to Operating Systems Interrupts and operating systems scheduling.

In the free online course Operating Systems - Understanding Hardware and Software Interrupts you will be introduced to interrupts and will learn operating how systems handle interrupts. <br /><br />The course begins by introducing you to interrupts in an operating system. You will learn about the different types of interrupts and how a system handles a hardware interrupt. You will learn about a programable interrupt controller and how it handles hardware interrupts. You will learn about the advanced programable interrupt controller, and how it is used for modern system. You will learn about steps in handling an interrupt. You will learn about what the CPU and operating system do in each of the steps in handling an interrupt.<br /><br />Next, you will be introduced to software interrupts, and how they are used for implementing system calls. You will learn about how system calls work and about some of the different types of system calls you can use. You will learn about the parameters passed into a system call and where they come from. You will learn what a resource descriptor is used for in a system call. You will learn about CPU context switching and when the occur. You will learn about the trap frame and what happens when a software interrupt occurs. You will learn about context switch overheads and factors effecting context switching time.<br /><br />This course will be of great interest to computer science students and computer engineers, and anyone who wants to learn more about Interrupts in computer operating systems.<br /><br />Perquisites: The Learner will need to have completed the previous courses: Introduction to Operating Systems, Introduction to Memory Management, Introduction to Operating Systems Processes.

In this free Alison course Operating Systems - Deadlocks and Threads you will be introduced to the important concepts of deadlocks and threads and their occurrence in operating systems. <br /><br />The course begins by introducing you to deadlocks. You will learn about the four conditions necessary for a deadlock to arise and how to prevent deadlocks from happening. The course also explains the concept semaphores and their role in deadlocks. You will also learn about the role of mutex in preventing deadlocks and be able to explain the dining philosopher’s problem. <br /><br />Next, this course will introduce you to threads. You will learn the difference between threads and processes and explain how different operating systems supports the use of threads. You will also learn about paralyzation and how threads are used in paralyzation. In addition, the course will also describe to you how threads are created and destroyed.<br /><br />This free course will be of great interest to computer science students and computer engineers, and anyone who wants to learn more about deadlocks and threads in computer operating systems.

In this free Alison course Operating Systems - System Security you will be introduced to methods and techniques that are used to secure operating systems from malicious bugs and viruses. Security has become extremely important in the modern digital age because systems are always on and are highly connected, and hackers and cyber-criminals are always looking for ways to insert malicious programs into vulnerable operating systems. <br /><br />The course begins by introducing you to secrecy, integrity, and availability with regard to security goals. You will learn about the denial of service attacks and the different access control techniques that can be used. This course will introduce you to information flow policies and leaky states and will also inform you about the difference between the Biba model and Bell-LaPadula module.<br /><br />Next, the course will provide you with in-depth knowledge on buffer overflows and stacks. You will learn about the use of buffer overflows and how an attacker can use these to create an exploit code. You will be able to implement different techniques to overcome buffer overflow vulnerability. This module will also explain libc and ‘how to return libc attacks’. Finally, you will learn what gadgets are in operating systems and how they can be used. <br /><br />This free course will be of great interest to computer science students and computer engineers, and anyone who wants to learn more about systems security in computer operating systems.<br />

The story of Germany's dramatic attack upon American tankers and freighters by U-boats during the Second World War

The Improving Business Finances and Operations Specialization will be discontinued in January 2016. Learners who wish to earn a Specialization Certificate must pass all courses by December 31, 2015, and complete the Capstone Project in January 2016. If you do not anticipate completing the Specialization within this time frame, please do not purchase the full access option. Recognize the role of operations within the bigger picture of business strategy and master the fundamental aspects of managing the operations of a business. Recognize the role of operations within the bigger picture of business strategy and master the fundamental aspects of managing the operations of a business.

Gain fundamental insights to world of Operations Management from award winning Professor Gad Allon

Have you ever wondered about the right methods to improve productivity, configure your supply chain or address the demand on hand?

In recent years, businesses have strived to improve productivity and quality, reduce costs and delivery times, and embrace flexibility and innovation. These strategies are part of the Operations Management (OM) activities that service and manufacturing organizations engage in. 

Operations Management helps you to understand the role of OM in a firm and to develop abilities to structure and solve operations related problems. The course will empower you with skills to address important aspects of business operations including capacity, productivity, quality, and supply chain.

You will understand how operations in an organization are configured and factors that can potentially drive the complexity of managing such operations. We will also introduce concepts like estimating capacity, identifying bottlenecks, and de-bottlenecking.

Throughout the course, you will join us in discussions on productivity improvement methods, development of quality assurance systems and configuration of supply chains.

The course will equip you with the right tools, techniques and skills to estimate, compute, analyze and configure key elements of operations management.

Our objective in this course is to introduce you to concepts and techniques related to the design, planning, control, and improvement of manufacturing and service operations. The course begins with a holistic view of operations, where we stress the coordination of product development, process management, and supply chain management. As the course progresses, we will investigate various aspects of each of these three tiers of operations in detail. We will cover topics in the areas of process analysis, materials management, production scheduling, quality improvement, and product design.

To pursue the course objective most effectively, you will have to:

1. Study the assigned reading materials.
2. Prepare and discuss cases, readings, and exercises in class.
3. Prepare written analyses of cases.