Computer Mouse computer mouse

Jimmy/ April 13, 2022/ computer mouse

Weighting 465 g, the device with a total height of about 7 cm came in a c. 12 cm diameter hemispherical injection-molded thermoplastic casing featuring one central push button. Since around the late 1990s, the three-button scrollmouse has become the de facto standard. Users most commonly employ the second button to invoke a contextual menu in the computer’s software user interface, which contains options specifically tailored to the interface element over which the mouse cursor currently sits.

  • For simple software, when the mouse starts to move, the software will count the number of “counts” or “mickeys” received from the mouse and will move the cursor across the screen by that number of pixels .
  • When the ball was rolled, the pickup discs spun and contacts on their outer rim made periodic contact with wires, producing pulses of output with each movement of the ball.
  • Benjamin’s project used analog computers to calculate the future position of target aircraft based on several initial input points provided by a user with a joystick.

“Logitech is pushing out a 25,600 DPI software update to several gaming mice

Mouse buttons are microswitches which can be pressed to select or interact with an element of a graphical user interface, producing a distinctive clicking sound. Windows XP Service Pack 2 introduced a Bluetooth stack, allowing Bluetooth mice to be used without any USB receivers. Windows Vista added native support for horizontal scrolling and standardized wheel movement granularity for finer scrolling. The earliest mass-market mice, such as on the original Macintosh, Amiga, and Atari ST mice used a D-subminiature 9-pin connector to send the quadrature-encoded X and Y axis signals directly, plus one pin per mouse button.

Computer Mouse

The mouse was a simple optomechanical device, and the decoding circuitry was all in the main computer. Mouse use in DOS applications became more common after the introduction of the Microsoft Mouse, largely because Microsoft provided an open standard for communication between applications and mouse driver software. Thus, any application written to use the Microsoft standard could use a mouse with a driver that implements the same API, even if the mouse hardware itself was incompatible with Microsoft’s.

Bill English, builder of Engelbart’s original mouse, created a ball mouse in 1972 while working for Xerox PARC. The plural for a computer mouse is either “mice” or “mouses” according to most dictionaries, with “mice” being more common. The first recorded plural usage is “mice”; the online Oxford Dictionaries cites a 1984 use, and earlier uses include J.

Many games provide players with the option of mapping their own choice of a key or button to a certain control. An early technique of players, circle strafing, saw a player continuously strafing while aiming and shooting at an opponent by walking in circle around the opponent with the opponent at the center of the circle. Players could achieve this by holding down a key for strafing while continuously aiming the mouse toward the opponent.

Tactile Mice

For simple software, when the mouse starts to move, the software will count the number of “counts” or “mickeys” received from the mouse and will move the cursor across the screen by that number of pixels . When the movement of the mouse passes the value set for some threshold, the software will start to move the cursor faster, with a greater rate factor. Usually, the user can set the value of the second rate factor by changing the “acceleration” setting. Mickeys per second is a unit of measurement for the speed and movement direction of a computer mouse, where direction is often expressed as “horizontal” versus “vertical” mickey count.

Battery powered, wireless optical mice flash the LED intermittently to save power, and only glow steadily when movement is detected. Another type of mechanical mouse, the “analog mouse” , uses potentiometers rather than encoder wheels, and is typically designed to be plug compatible with an analog joystick. The “Color Mouse”, originally marketed by RadioShack for their Color Computer (but also usable on MS-DOS machines equipped with analog joystick ports, provided the software accepted joystick input) was the best-known example. The trackball, a related pointing device, was invented in 1946 by Ralph Benjamin as part of a post-World War II-era fire-control radar plotting system called the Comprehensive Display System . Benjamin’s project used analog computers to calculate the future position of target aircraft based on several initial input points provided by a user with a joystick. Benjamin felt that a more elegant input device was needed and invented what they called a “roller ball” for this purpose.

Operating systems sometimes apply acceleration, referred to as “ballistics”, to the motion reported by the mouse. For example, versions of Windows prior to Windows XP doubled reported values above a configurable threshold, and then optionally doubled them again above a second configurable threshold. These doublings applied separately in the X and Y directions, resulting in very nonlinear response. The DE-9 connectors were designed to be electrically compatible with the joysticks popular on numerous 8-bit systems, such as the Commodore 64 and the Atari 2600. Although the ports could be used for both purposes, the signals must be interpreted differently.

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