Concept
Squeak
Related concepts (11)
Etoys (programming language)
Etoys is a child-friendly computer environment and object-oriented prototype-based programming language for use in education. Etoys is a media-rich authoring environment with a scripted object model for many different objects that runs on different platforms and is free and open source. Squeak was originally developed at Apple in 1996 by Dan Ingalls. Squeak is a Smalltalk implementation, object-oriented, class-based, and reflective, derived from Smalltalk-80 at Apple Computer.
Scratch (programming language)
Scratch is a high-level block-based visual programming language and website aimed primarily at children as an educational tool, with a target audience of ages 8 to 16. Users on the site, called Scratchers, can create projects on the website using a block-like interface. Projects can be exported to standalone HTML5, Android apps, Bundle (macOS) and EXE files using external tools. Scratch was conceived and designed through collaborative National Science Foundation grants awarded to Mitchell Resnick and Yasmin Kafai.
Visual programming language
In computing, a visual programming language (visual programming system, VPL, or, VPS) or block coding is a programming language that lets users create programs by manipulating program elements graphically rather than by specifying them textually. A VPL allows programming with visual expressions, spatial arrangements of text and graphic symbols, used either as elements of syntax or secondary notation.
AgentSheets
AgentSheets was one of the first modern block-based programming language for children. The idea of AgentSheets was to overcome syntactic challenges found in common text-based programming languages by using drag-and-drop mechanisms conceptualizing commands such as conditions and actions as editable blocks that could be composed into programs. Ideas such as this are used in various other programming languages, such as Scratch though it does cost money to use most of the blocks.
StarLogo
StarLogo is an agent-based simulation language developed by Mitchel Resnick, Eric Klopfer, and others at the Massachusetts Institute of Technology (MIT) Media Lab and Scheller Teacher Education Program in Massachusetts. It is an extension of the Logo programming language, a dialect of Lisp. Designed for education, StarLogo can be used by students to model or simulate the behavior of decentralized systems. The first StarLogo ran on a Connection Machine 2 parallel computer. A subsequent version ran on Macintosh computers.
Logo (programming language)
Logo is an educational programming language, designed in 1967 by Wally Feurzeig, Seymour Papert, and Cynthia Solomon. Logo is not an acronym: the name was coined by Feurzeig while he was at Bolt, Beranek and Newman, and derives from the Greek logos, meaning word or thought. A general-purpose language, Logo is widely known for its use of turtle graphics, in which commands for movement and drawing produced line or vector graphics, either on screen or with a small robot termed a turtle.
Trait (computer programming)
In computer programming, a trait is a concept used in programming languages which represents a set of methods that can be used to extend the functionality of a class. In object-oriented programming, behavior is sometimes shared between classes which are not related to each other. For example, many unrelated classes may have methods to serialize objects to JSON. Historically, there have been several approaches to solve this without duplicating the code in every class needing the behavior.
Object-oriented programming
Object-Oriented Programming (OOP) is a programming paradigm based on the concept of "objects", which can contain data and code. The data is in the form of fields (often known as attributes or properties), and the code is in the form of procedures (often known as methods). A common feature of objects is that procedures (or methods) are attached to them and can access and modify the object's data fields. In this brand of OOP, there is usually a special name such as or used to refer to the current object.
Prototype-based programming
Prototype-based programming is a style of object-oriented programming in which behaviour reuse (known as inheritance) is performed via a process of reusing existing objects that serve as prototypes. This model can also be known as prototypal, prototype-oriented, classless, or instance-based programming. Prototype-based programming uses the process generalized objects, which can then be cloned and extended. Using fruit as an example, a "fruit" object would represent the properties and functionality of fruit in general.
Alan Kay
Alan Curtis Kay (born May 17, 1940) is an American computer scientist best known for his pioneering work on object-oriented programming and windowing graphical user interface (GUI) design. At Xerox PARC he led the design and development of the first modern windowed computer desktop interface. There he also led the development of the influential object-oriented programming language Smalltalk, both personally designing most of the early versions of the language and coining the term "object-oriented.