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Operating temperature. An operating temperature is the allowable temperature range of the local ambient environment at which an electrical or mechanical device operates. The device will operate effectively within a specified temperature range which varies based on the device function and application context, and ranges from the minimum ...
In electrical and safety engineering, hazardous locations (HazLoc, pronounced haz·lōk) are places where fire or explosion hazards may exist. Sources of such hazards include gases, vapors, dust, fibers, and flyings, which are combustible or flammable. Electrical equipment installed in such locations can provide an ignition source, due to ...
In computing, the menu key ( ≣ Menu ), or application key, is a key with the primary function to launch a context menu with the keyboard rather than with the usual right-mouse button. [ 1] It was previously found on Microsoft Windows -oriented computer keyboards and was introduced at the same time as the Windows logo key.
Power-on self-test. A power-on self-test ( POST) is a process performed by firmware or software routines immediately after a computer or other digital electronic device is powered on. [ 1] POST processes may set the initial state of the device from firmware and detect if any hardware components are non-functional.
Digital Signal 3. A Digital Signal 3 ( DS3) is a digital signal level 3 T-carrier. It may also be referred to as a T3 line. The data rate for this type of signal is 44.736 Mbit/s (45 Mb). DS3 uses 75ohm coaxial cable and BNC connectors. This level of carrier can transport 28 DS1 level signals within its payload.
HANNA ARHIROVA. August 2, 2024 at 11:26 AM. PARIS (AP) — He calls himself a “troglodyte” with his brushes, oil paints, and large canvas among the photographers with expensive cameras and ...
July 19, 2024 at 1:53 PM. Computers around the world failed on Friday, crippling businesses and shutting down everything from airlines and television networks to emergency and hospital services ...
A typical 105-key computer keyboard, consisting of sections with different types of keys. A computer keyboard consists of alphanumeric or character keys for typing, modifier keys for altering the functions of other keys, [1] navigation keys for moving the text cursor on the screen, function keys and system command keys—such as Esc and Break—for special actions, and often a numeric keypad ...