Nouns denoting body parts. Hypernyms (chemoreceptor is a kind of...): receptor; sense organ; sensory receptor (an organ having nerve endings (in the skin or viscera or eye or ear or nose or mouth) that respond to stimulation).
Figure 1. Percentage of machines (server excluded) with one or more user accounts from January 2008 to June 2008. User Account Control was implemented in Vista to address two key issues: one, incompatibility of software across user types and two, the lack of user knowledge of system-level changes. We expanded the account types by adding the Protected Admin (PA), which became the default type for the first account on the system.
Control-C is a common computer command. It is generated by pressing the key while holding down the key on most computer keyboards. In graphical user interface environments that use the control key to control the active program, control-C is often used to copy highlighted text to the clipboard. In many command-line interface environments, control-C is used to abort the current task and regain user control. It is a special sequence which causes the operating system to send a signal to the active program.