The notebook computer is a subtype of laptop computer which is characterized by being constituted by two hardware blocks of similar size and connected together by one or more hinges that allow the superposition. In particular, when the computer is not in use, the two blocks can be stacked to save space and facilitate the transport of the computer.
When using the computer, you must remove the two blocks instead. In fact, the upper block featues the display, the lower block, the keyboard (respectively the main user interface output and the main user interface for input of the notebook computer). And only two blocks away the dispay and the keyboard can be used. An additional benefit that is obtained by superimposing the two blocks is to protect the display and keypad: two components of the computer particularly delicate.
However, this does not apply to types that do not require a conventional picture tube. Other characteristics of a monitor are aspect ratio, the maximum vertical frequency from which a specific resolution (eg 1024 × 768 pixels) gives a refresh rate (eg 80 Hertz (Hz)), the brightness, the contrast, the reaction time and especially in liquid crystal displays, the number of pixels and the maximum viewing angle.
Compatibility
The fixed number and arrangement of the pixels makes it impossible for a monitor to process the call intended for another graphics mode signals correctly.
Even with tube monitor’s deflection coils allow only a minimal change of image and line frequency. Therefore, the hardware detection ensures the activation of an appropriate display driver, as well as an appropriate configuration of the graphics card.
In practice, this corresponds to the following two characteristics: a weight sufficiently content, all the major hardware components of computers form a single block even while the computer is used.
The mouse is an input device (control station) for computers. The development of graphical user interfaces has made the computer mouse a standard input device, it is now practically available in any PC. The alternatives entail the operation of the computer using a trackball, a keyboard, a touch screen or a tablet.
The movement of the mouse, run with the hand on the table or a suitable base, such as the mouse pad is received via a sensor in the mouse, digitized and transmitted via an interface to the connected computer.
The operating system uses this two-dimensional motion information in the same way as it does the pointer around on the screen. By pressing the buttons or additional elements of the mouse, the user can perform various actions in the operating system or application program.
The introduction of the computer mouse can be regarded as a major breakthrough in improving the usability of computers thanks to the Computer Repair Store.
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