Tweak is a graphical user interface (GUI) layer written by Andreas Raab for the Squeak development environment, which in turn is an integrated development environment based on the Smalltalk-80 computer programming language. Tweak is an alternative to an earlier graphic user interface layer called Morphic. Development began in 2001. [1]
Applications that use the Tweak software include Sophie (version 1), a multimedia and e-book authoring system, and a family of virtual world systems: Open Cobalt, Teleplace, OpenQwaq, 3d ICC's Immersive Terf and the Croquet Project.
An experimental version of Etoys, a programming environment for children, used Tweak instead of Morphic. [2] Etoys was a major influence on a similar Squeak-based programming environment known as Scratch.
Alan Curtis Kay is an American computer scientist. He has been elected a Fellow of the American Academy of Arts and Sciences, the National Academy of Engineering, and the Royal Society of Arts. He is best known for his pioneering work on object-oriented programming and windowing graphical user interface (GUI) design. He was awarded the Turing award in 2003.
K-Meleon is an open-source web browser for Microsoft Windows. Originally based on the same Gecko layout engine as Mozilla Firefox and SeaMonkey, K-Meleon's design goal is to provide a fast and reliable web browser while providing a highly customizable interface and using system resources efficiently. Beginning with K-Meleon 76.2G, builds of the browser have utilized the Goanna layout engine instead of the Gecko engine. The browser is released under the GNU General Public License.
The Portable Operating System Interface (POSIX) is a family of standards specified by the IEEE Computer Society for maintaining compatibility between operating systems. POSIX defines both the system- and user-level application programming interfaces (API), along with command line shells and utility interfaces, for software compatibility (portability) with variants of Unix and other operating systems. POSIX is also a trademark of the IEEE. POSIX is intended to be used by both application and system developers.
Smalltalk is an object-oriented, dynamically typed reflective programming language. Smalltalk was created as the language underpinning the "new world" of computing exemplified by "human–computer symbiosis". It was designed and created in part for educational use, specifically for constructionist learning, at the Learning Research Group (LRG) of Xerox PARC by Alan Kay, Dan Ingalls, Adele Goldberg, Ted Kaehler, Diana Merry, Scott Wallace, and others during the 1970s.
Squeak is an object-oriented, class-based, and reflective programming language. It was derived from Smalltalk-80 by a group that included some of Smalltalk-80's original developers, initially at Apple Computer, then at Walt Disney Imagineering, where it was intended for use in internal Disney projects. The group would later go on to be supported by HP labs, SAP, and most recently, Y Combinator.
GNUstep is a free software implementation of the Cocoa Objective-C frameworks, widget toolkit, and application development tools for Unix-like operating systems and Microsoft Windows. It is part of the GNU Project.
Genera is a commercial operating system and integrated development environment for Lisp machines created by Symbolics. It is essentially a fork of an earlier operating system originating on the Massachusetts Institute of Technology (MIT) AI Lab's Lisp machines which Symbolics had used in common with Lisp Machines, Inc. (LMI), and Texas Instruments (TI). Genera is also sold by Symbolics as Open Genera, which runs Genera on computers based on a Digital Equipment Corporation (DEC) Alpha processor using Tru64 UNIX, on x86_64 and Arm64 GNU/Linux and on Apple M1 MacOS. It is released and licensed as proprietary software.
In computing, a visual programming language is any 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. For example, many VPLs are based on the idea of "boxes and arrows", where boxes or other screen objects are treated as entities, connected by arrows, lines or arcs which represent relations.
Project Looking Glass is a now inactive free software project under the GPL to create an innovative 3D desktop environment for Linux, Solaris, and Windows. It was sponsored by Sun Microsystems.
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.
Morphic is a graphics library concept which uses graphical objects called "Morphs" for simplified GUI-building which allow for a great degree of flexibility and dynamism. It was originally created for Self but later was ported to other programming languages like Squeak, JavaScript, Python, and even Objective-C.
The Croquet Project is a software project that preceded Croquet, and was intended to promote the continued development of the Croquet open-source software development kit to create and deliver collaborative multi-user online applications.
Constructionist learning is the creation by learners of mental models to understand the world around them. Constructionism advocates student-centered, discovery learning where students use what they already know, to acquire more knowledge. Students learn through participation in project-based learning where they make connections between different ideas and areas of knowledge facilitated by the teacher through coaching rather than using lectures or step-by-step guidance. Further, constructionism holds that learning can happen most effectively when people are active in making tangible objects in the real world. In this sense, constructionism is connected with experiential learning and builds on Jean Piaget's epistemological theory of constructivism.
Etoys is a child-friendly computer environment and object-oriented prototype-based programming language for use in education.
Naked objects is an architectural pattern used in software engineering. It is defined by three principles:
Tactile programming is the specification, development, interaction with and interpretation of computer programs through a touch-centric interface. It is based on the ideas behind visual programming languages, particularly in the interaction and development of software with visual-graphic, rather than text-based, interpretations which can be "dragged-and-dropped" with a mouse in order to develop the software's functionality.
Open Cobalt is a free and open-source software platform for constructing, accessing, and sharing virtual worlds both on local area networks or across the Internet, with no need for centralized servers.
Hollywood is a commercially distributed programming language developed by Andreas Falkenhahn which mainly focuses on the creation of multimedia-oriented applications. Hollywood is available for AmigaOS, MorphOS, WarpOS, AROS, Windows, macOS, Linux, Android, and iOS. Hollywood has an inbuilt cross compiler that can automatically save executables for all platforms supported by the software. The generated executables are completely stand-alone and do not have any external dependencies, so they can also be started from a USB flash drive. An optional add-on also allows users to compile projects into APK files.
Ted Kaehler is an American computer scientist known for his role in the development of several system methods. He is most noted for his contributions to the programming languages Smalltalk, Squeak, and Apple Computer's HyperCard system, and other technologies developed at Xerox PARC.