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USB On-The-Go (USB OTG or just OTG) is a specification first used in late 2001 that allows USB devices, such as tablets or smartphones, to also act as a host, allowing other USB devices, such as USB flash drives, digital cameras, mouse or keyboards, to be attached to them. Use of USB OTG allows devices to switch back and forth between the roles ...
Power On (IEC 60417-5007) and Power Off (IEC 60417-5008) symbols are used to indicate positions of the rocker switch Power button marked with Standby symbol (IEC 60417-5009) turns the device on or off without fully disconnecting power supply. A power symbol is a symbol indicating that a control activates or deactivates a particular device.
It began to become less common on later USB-based keyboards as these machines keep the keyboard powered when the machine is sleeping, so any key can act as a power key. Power keys remain on some modern Macs, including the MacBook Air , but most others have replaced it with an "eject" key, formerly used to open the now-non-existent CD drive .
Apple Wireless Keyboard (A1016) The first generation Apple Wireless Keyboard was released at the Apple Expo on September 16, 2003. [2]It was based on the updated wired Apple Keyboard (codenamed A1048), and featured white plastic keys housed in a clear plastic shell.
Most cases also have a power button or switch, a reset button, and LEDs to indicate power, hard drive activity, and network activity in some models. Some cases include built-in I/O ports (such as USB and headphone ports) on the front of the case. Such a case will also (normally) include the wires needed to connect these ports, switches, and ...
Standby power consumption of some computers can be reduced by turning off components that use power in standby mode. For instance, disabling Wake-on-LAN (WoL), [32] "wake on modem", "wake on keyboard" or "wake on USB" may reduce power when in standby. Unused features may be disabled in the computer's BIOS setup to save power. Devices were ...