Online courses directory (10358)
In this free online course Introduction to Computer Network Security you will learn about security in your computer network. You will learn about the core principles of security and physical security. You will learn about the different authentication process your system. You will learn about user rights and permissions. You will learn about tracking users in the system. You will learn about creating proper passwords and common attacks used by hacker to get your passwords.<br /><br />The course begins by introducing you to the core principles of computer network security. You will learn about privilege levels and what the attack surfaces involve. You will learn about social engineering and people gaining access to system through that. The course teaches you about the four parts of risk management, and about physical security as the first line of defence. You will also learn about the different layers of physical security.<br /><br />Next, the course reviews authentication. You will learn about the different methods of authentication, setting rights and permissions for users. You will also learn about sharing folders and files. You will learn about tracking user with auditing and about encrypting your data.<br /><br />Finally, the course reviews issues around password security. You will learn about common password attacks, what a keylogger and sniffers are, and how to create complex passwords that increase security. You will learn about setting up an account lockout for when a user incorrectly attempts to login to your system.<br /><br />This course would be of great interest to IT specialists, computing students, computer network engineers and those who wish to learn more about network and computer security.
An introductory computer networking course focusing on how the Internet works and the principles of designing networks and network protocols.
An introductory computer networking course focusing on how the Internet works and the principles of designing networks and network protocols.
Computer Numerical Control (CNC) Machining is the process through which computers control machine-based processes in manufacturing. The kinds of machines controlled include lathes, mills, routers and grinders – all used for manufacturing of metal and plastic products.
In this course, you’ll learn the ins-and-outs of CNC machining; building the essential knowledge to develop and operate a project with a CNC machine.
From plan interpretation to machining and quality control, you will learn how to make the right decision in every stage of a project through videos and interactive activities.
We invite you to take part of the “Jaque Mate” company project, the objective of which is to produce chess pieces.
Are you up for the challenge?
This course is designed as an introduction to computer programming using Java. Students will learn how to a) analyze a problem, and identify and define the computing requirements appropriate to its solution b) design, implement, and evaluate a computer-based system, process, component, or program to meet desired needs, and c) apply design and development principles in the construction of software systems of varying complexity. Topics include Computers, programs, Java, input and output, identifiers, variables, assignment statements, constants, memory diagrams, primitive data types, conditional statements, repetition, methods, parameters, arguments, return values, one dimensional arrays, objects, classes, and classes from the Java Application Programmers Interface (API).
This course is designed as an introduction to computer programming using Java. Students will learn how to a) analyze a problem, and identify and define the computing requirements appropriate to its solution b) design, implement, and evaluate a computer-based system, process, component, or program to meet desired needs, and c) apply design and development principles in the construction of software systems of varying complexity. Topics include Computers, programs, Java, input and output, identifiers, variables, assignment statements, constants, memory diagrams, primitive data types, conditional statements, repetition, methods, parameters, arguments, return values, one dimensional arrays, objects, classes, and classes from the Java Application Programmers Interface (API).
This is CS50x, Harvard University's introduction to the intellectual enterprises of computer science and the art of programming for majors and non-majors alike, with or without prior programming experience. An entry-level course taught by David J. Malan, CS50x teaches students how to think algorithmically and solve problems efficiently. Topics include abstraction, algorithms, data structures, encapsulation, resource management, security, software engineering, and web development. Languages include C, Python, SQL, and JavaScript plus CSS and HTML. Problem sets inspired by real-world domains of biology, cryptography, finance, forensics, and gaming. As of Fall 2016, the on-campus version of CS50x, CS50, was Harvard's largest course.
Students who earn a satisfactory score on 9 problem sets (i.e., programming assignments) and a final project are eligible for a certificate. This is a self-paced course–you may take CS50x on your own schedule.
HarvardX requires individuals who enroll in its courses on edX to abide by the terms of the edX honor code. HarvardX will take appropriate corrective action in response to violations of the edX honor code, which may include dismissal from the HarvardX course; revocation of any certificates received for the HarvardX course; or other remedies as circumstances warrant. No refunds will be issued in the case of corrective action for such violations. Enrollees who are taking HarvardX courses as part of another program will also be governed by the academic policies of those programs.
HarvardX pursues the science of learning. By registering as an online learner in an HX course, you will also participate in research about learning. Read our research statement to learn more.
Harvard University and HarvardX are committed to maintaining a safe and healthy educational and work environment in which no member of the community is excluded from participation in, denied the benefits of, or subjected to discrimination or harassment in our program. All members of the HarvardX community are expected to abide by Harvard policies on nondiscrimination, including sexual harassment, and the edX Terms of Service. If you have any questions or concerns, please contact harvardx@harvard.edu and/or report your experience through the edX contact form.
Computer science is a diverse topic encompassing computer technology, hardware, software, security, communications, programming, algorithms, functions, and storage. By studying it you will learn how computer science impacts on our daily lives. In this free online computer science course you will start by reviewing bits and binary code, including how they are transmitted and stored, and go all the way to computer algorithms which help solve complex problems in an efficient and cost-effective manner. You will also review various computer systems and architecture such as Linux, Windows, and Mac operating systems. This free online computer science course will be of great interest to IT professionals who would like to review the diverse range of topics found in computer science. It will also be useful to learners interested in a career in IT and computing who would like an introduction to the topic.<br />
This subject is aimed at students with little or no programming experience. It aims to provide students with an understanding of the role computation can play in solving problems. It also aims to help students, regardless of their major, to feel justifiably confident of their ability to write small programs that allow them to accomplish useful goals. The class will use the Python™ programming language.
This subject is aimed at students with little or no programming experience. It aims to provide students with an understanding of the role computation can play in solving problems. It also aims to help students, regardless of their major, to feel justifiably confident of their ability to write small programs that allow them to accomplish useful goals. The class will use the Python programming language.
Course Format
This course has been designed for independent study. It provides everything you will need to understand the concepts covered in the course. The materials include:
- A complete set of Lecture Videos by Prof. Guttag.
- Resources for each lecture video, such as Handouts, Slides, and Code Files.
- Recitation Videos by course TA's to review content and problem solving techniques.
- Homework problems with sample student solutions.
- Further Study collections of links to supplemental online content.
- Self-Assessment tools, including lecture questions with answers and unit quizzes with solutions, to assess your subject mastery.
Other Versions
Other OCW Versions
OCW has published multiple versions of this subject. 
