A computer mouse is a hand-held pointing device that detects two-dimensional motion relative to a surface. This motion is typically translated into the motion of the pointer on a display, which allows a smooth control of the graphical user interface of a computer.
A pointing device is a human interface device that allows a user to input spatial data to a computer. CAD systems and graphical user interfaces (GUI) allow the user to control and provide data to the computer using physical gestures by moving a hand-held mouse or similar device across the surface of the physical desktop and activating switches on the mouse. Movements of the pointing device are echoed on the screen by movements of the pointer and other visual changes. Common gestures are point and click and drag and drop.
A trackball is a pointing device consisting of a ball held by a socket containing sensors to detect a rotation of the ball about two axes—like an upside-down ball mouse with an exposed protruding ball. Users roll the ball to position the on-screen pointer, using their thumb, fingers, or the palm of the hand, while using the fingertips to press the buttons.
A game controller, gaming controller, or simply controller, is an input device or input/output device used with video games or entertainment systems to provide input to a video game. Input devices that have been classified as game controllers include keyboards, mice, gamepads, and joysticks, as well as special purpose devices, such as steering wheels for driving games and light guns for shooting games. Controllers designs have evolved to include directional pads, multiple buttons, analog sticks, joysticks, motion detection, touch screens and a plethora of other features.
Haptic technology is technology that can create an experience of touch by applying forces, vibrations, or motions to the user. These technologies can be used to create virtual objects in a computer simulation, to control virtual objects, and to enhance remote control of machines and devices (telerobotics). Haptic devices may incorporate tactile sensors that measure forces exerted by the user on the interface. The word haptic, from the Greek: ἁπτικός (haptikos), means "tactile, pertaining to the sense of touch". Simple haptic devices are common in the form of game controllers, joysticks, and steering wheels.
An accelerometer is a device that measures the proper acceleration of an object. Proper acceleration is the acceleration of the object relative to an observer who is in free fall. Proper acceleration is different from coordinate acceleration, which is acceleration with respect to a given coordinate system, which may or may not be accelerating. For example, an accelerometer at rest on the surface of the Earth will measure an acceleration due to Earth's gravity straight upwards of about g ≈ 9.81 m/s2. By contrast, an accelerometer that is in free fall will measure zero acceleration.
An analog stick, also known as control stick, joystick or thumbstick, is an input device for a controller that is used for two-dimensional input. An analog stick is a variation of a joystick, consisting of a protrusion from the controller; input is based on the position of this protrusion in relation to the default "center" position. While digital sticks rely on single electrical connections for movement, analog sticks use continuous electrical activity running through potentiometers to measure the exact position of the stick within its full range of motion. The analog stick has greatly overtaken the D-pad in both prominence and usage in console video games.
An electronic game is a game that uses electronics to create an interactive system with which a player can play. Video games are the most common form today, and for this reason the two terms are often used interchangeably. There are other common forms of electronic game including handheld electronic games, standalone systems, and exclusively non-visual products.
Keyboard expression is the ability of a keyboard musical instrument to change tone or other qualities of the sound in response to velocity, pressure or other variations in how the performer depresses the keys of the musical keyboard. Expression types include:
A motion simulator or motion platform is a mechanism that creates the feelings of being in a real motion environment. In a simulator, the movement is synchronised with a visual display of the outside world (OTW) scene. Motion platforms can provide movement in all of the six degrees of freedom (DOF) that can be experienced by an object that is free to move, such as an aircraft or spacecraft:. These are the three rotational degrees of freedom and three translational or linear degrees of freedom.
An arcade controller is a collective set of input devices designed primarily for use in an arcade cabinet. A typical control set consists of a joystick and a number of push-buttons. Less common setups include devices such as trackballs or steering wheels. These devices are generally produced under the assumption that they will be used in commercial settings, such as in video arcades, where they may be heavily or roughly used. Durability is one of the distinguishing characteristics of "authentic" arcade parts when compared with numerous, low-cost arcade imitations designed for private use in the home.
Reactor is an arcade video game released in 1982 by Gottlieb. The object of the game is to cool down the core of a nuclear reactor without being pushed into its walls by swarms of subatomic particles. Reactor was developed by Tim Skelly, who previously designed and programmed a series of vector graphics arcade games for Cinematronics, including Rip Off. It was the first arcade game to credit the developer on the title screen. Reactor was ported to the Atari 2600 by Charlie Heath and published by Parker Brothers the same year as the original.
In computing, a motion controller is a type of input device that uses accelerometers, gyroscopes, cameras, or other sensors to track motion.
A context-sensitive user interface offers the user options based on the state of the active program. Context sensitivity is ubiquitous in current graphical user interfaces, often in context menus.
In computing, an input device is a piece of equipment used to provide data and control signals to an information processing system, such as a computer or information appliance. Examples of input devices include keyboards, computer mice, scanners, cameras, joysticks, and microphones.
In game design the Mechanics-Dynamics-Aesthetics (MDA) framework is a tool used to analyze games. It formalizes the properties of games by breaking them down into three components: Mechanics, Dynamics and Aesthetics. These three words have been used informally for many years to describe various aspects of games, but the MDA framework provides precise definitions for these terms and seeks to explain how they relate to each other and influence the player's experience.
The Steam Controller is a discontinued game controller developed by Valve for use with personal computers running Steam on Windows, macOS, Linux, smartphones or SteamOS. The controller was designed not only for games developed for controller users, but also for games traditionally played with keyboard and mouse controls so that they can be played through the controller. It was released in November 2015 along with Valve's Steam Machine and discontinued in November 2019.
Secrets of Rætikon is an action-adventure open world video game developed and published by Broken Rules. The player controls a bird and must explore the environment of Rætikon to find its secrets. Game elements include animals with specific behaviors and ancient puzzles. Development began in 2011 and the game was formally announced in July 2013 and followed by alpha and Steam Early Access releases. Secrets of Rætikon was released on April 17, 2014 for Windows, OS X, and Linux platforms. It received mixed reviews from reviewers, who praised its artwork and movement physics, but criticized its inconsistency, lack of cohesion, and technical issues.
The Marriage is an experimental art game created by Rod Humble and released for Microsoft Windows in March 2007. Humble set out to explore the forms of artistic expression unique to video games, leading him to express his feelings associated with marriage by relying primarily on game mechanics rather than on traditional storytelling, audio, or video elements. The game uses only simple colored shapes that the player interacts with using a mouse. The player's actions cause pink and blue squares to increase or decrease in both size and opacity, representing the balance of personal needs in a relationship.
The Atari joystick port is a computer port used to connect various gaming controllers to game console and home computer systems in the 1970s to the 1990s. It was originally introduced on the Atari 2600 in 1977 and then used on the Atari 400 and 800 in 1979. It went cross-platform with the VIC-20 in 1981, and was then used on many following machines from both companies, as well as a growing list of 3rd party machines like the MSX platform and various Sega consoles.
