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Media controls on a multimedia keyboard. From top; left to right: skip backward, skip forward, stop, play/pause. Media control symbols are commonly found on both software and physical media players, remote controls, and multimedia keyboards. Their application is described in ISO/IEC 18035. [1]
The MMCD Player has a clamshell form factor with an LCD screen and a QWERTY keyboard, complete with a numeric keypad, four-way navigation pad, "yes" and "no" buttons and a set of function keys (F1 to F5). The keyboard is located on a top of an inner lid which covers a top-loading CD drive. [12] [13]
The system automatically reboots whenever the CD-ROM eject button is pushed, so a user can not load the system software off one CD-ROM, and then insert another CD-ROM. Apple intended for the Pippin platform to be an appliance, and encouraged consumers to purchase a fully featured Macintosh system if they were looking for something upgradable.
An updated Magic Keyboard design introduced in 2021 includes asymmetric corner keys, eject key assigned to Sleep, fn key assigned to Input Source, and F4-F6 function keys reassigned to Spotlight, Dictation/Siri, and Do Not Disturb. Using this new design, two additional model options also include Touch ID sensors in place of the lock key. This ...
There were also some early CD-ROM drives for desktop PCs in which its tray-loading mechanism will eject slightly and user has to pull out the tray manually to load a CD [citation needed], similar to the tray ejecting method used in internal optical disc drives of modern laptops and modern external slim portable optical disc drives. Like the top ...
CD-ROM drives are rated with a speed factor relative to music CDs. If a CD-ROM is read at the same rotational speed as an audio CD, the data transfer rate is 150 Kbyte/s, commonly called "1×" (with constant linear velocity, short "CLV"). At this data rate, the track moves along under the laser spot at about 1.2 m/s.
Keyboard, video, mouse switches (KVM) often use the Scroll Lock key on the keyboard connected to the KVM switch for selecting between computers. On KVM switches with On-screen display (OSD), a "double click" of the Scroll Lock key often brings up the OSD, allowing the user to select the desired computer from a list or access the configuration ...
For instance, a CD-ROM device driver which can instruct a physical device to eject a disc would provide an ioctl request code to do so. Device-independent request codes are sometimes used to give userspace access to kernel functions which are only used by core system software or still under development.