| 词汇 | trackball |
| 释义 | trackball noun[ C ] uk /ˈtræk.bɔːl/ us /ˈtræk.bɔːl/ a ball on a computer mouse or keyboard that you roll with your finger in order to move the cursor on the screen: （电脑键盘上操控光标的）轨迹球 A mouse or trackball allows you to move the pointer that is on the screen and to select items by clicking on them. Even seasoned computer users found the mixture of keyboard, touchscreen and trackball confusing. epixx/iStock/Getty Image Plus/GettyImages The icons are generally activated by an on-screen pointer controlled by a mouse or trackball. Two large buttons sit on either side of the trackball and replicate the left and right mouse buttons. The idea was to grasp the stick in the palm of the hand and manipulate the trackball with the thumb. Computer hardware 3-D printer active matrix agnostic alt- associative memory backlight Bluetooth chip console flat screen joypad microcomputer multi-client multitasker netbook non-mobile number pad plug and play underscore VDT Examples of trackballtrackball Since this mouse is an optical mouse, the mouse fails when sufficient sunlight leaks into the trackball. For each image, the perimeters of the right ventricular cavity were traced using an off-line trackball algorithm. Efficient controls, those with a high ratio of degrees of freedom to selection overhead, are: touchpads, trackball; spaceball; motion-tracking glove. However, when used outdoors in bright sunlight, we often had to shade the trackball with the user's second hand in order for it to function properly. Together with light pens and trackballs, it was offered as optional input device for their system since 1968. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The cursor pointing function was handled by a built-in trackball that could be removed and located on either side of the keyboard. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The combination of the trackball accuracy and joystick analog control allowed for sophisticated two-hand aiming, arguably unsurpassed to these days. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. This variant of the mouse resembled an inverted trackball and became the predominant form used with personal computers throughout the 1980s and 1990s. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Its trackball system exhibited issues with wear under high use, and without maintenance most specimens eventually broke down. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The majority of the displays are screens, with a trackball to choose to play a video on a certain topic. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The trackball broke down due to the body oils from his hands. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. This button is duplicated on either side of the trackball for left or right-handed players. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. It employed the same twin trackballs with an action button duplicated on either side and a similar cocktail cabinet design with horizontal screen. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. He works, creates art, and communicates via the computer by using his thumb on a trackball mouse. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Less common setups include devices such as trackballs or steering wheels. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. These examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors. |
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