- In 2004, the Logitech MX 1000 became the first widely available computer mouse that used laser light to control the movement of a screen's pointer. Although the concept of a device for controlling a computer was introduced in 1964, the computer mouse didn't enter the public consciousness until the introduction of the Apple Macintosh in 1984.
- Laser technology marks the third generation of computer mouse technology. The first mice, introduced in 1972, were mechanical, using a ball that rolled across flat surfaces. They used the rolling ball to detect speed and movement, and information was then reflected in where and how fast the computer's pointer moved.
However, because of its mechanical nature, the mouse provided imprecise information as the smooth rubber ball collected scratches and the metal rollers gathered dust.
Around 1980, the first series of optical mice appeared, replacing the mechanical ancestor. The optical mouse uses an LED to detect changes in movement by scanning a surface more than 1,000 18-by-18 pixel-wide frames per second. - A major factor differentiating computer mice is their resolution. For instance, while an optical mouse offers a resolution of 800 dots per inch (DPI), replacing the LED with a laser increases the DPI to around 2,000. The increased resolution translates to greater precision.
Along with increased resolution, laser mice are also noted for the power-conservation features, including wireless operation. Rather than producing a continual light beam, laser mice observe a standby or sleep mode in which the light dims when not in use and return to full power when moved.
Laser mice also remove the need for a mouse pad. While optical LED mice need single-colored mouse pads to prevent confusion of motion detection, laser mice can operate with or without a mouse pad. - A number of factors should be considered when deciding whether to purchase an optical or laser mouse. Those factors include price, usage patterns and special applications.
Although most new computers purchased include an optical mouse, a laser mouse will cost more on average. If you are budget-minded or are happy with your optical mouse, a laser-based mouse may not be needed.
How and where you use your computer may also determine whether you pick a laser mouse. If you are mobile or require your mouse to always be active, such as in an office setting, you may prefer an LED mouse.
However, there are instances when a laser mouse is ideal. If you require precision, such as working with architecture drawings, or are a graphic artist, the higher DPI of a laser mouse may be preferred over an LED optical alternative. Gamers, who require both speed and accuracy, are increasingly fans of laser computer mice.
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