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.
Access Control. Access control refers to security features that control who can access resources in the operating system. Applications call access control functions to set who can access specific resources or control access to resources provided by the application. This overview describes the security model for controlling access to Windows objects, such as files, and for controlling access to administrative functions, such as setting the system time or auditing user actions.