clock interrupt

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• Interrupt priority level — The interrupt priority level (IPL) is a part of the current system interrupt state, which indicates the interrupt requests that will currently be accepted. The IPL may be indicated in hardware by the registers in a Programmable Interrupt… …   Wikipedia

• Interrupt — This article is about computer interrupts. For the study of the effect of disruptions on job performance, see Interruption science. In computing, an interrupt is an asynchronous signal indicating the need for attention or a synchronous event in… …   Wikipedia

• interrupt handler —    Special software located in the operating system kernel that manages and processes system interrupts.    Also known as an interrupt service routine (ISR).    When an interrupt occurs, the processor suspends and saves its current activity and… …   Dictionary of networking

• interrupt —    A signal to the processor generated by a device under its control, such as the system clock, that interrupts normal processing.    An interrupt indicates that an event requiring the processor s attention has occurred, causing the processor to… …   Dictionary of networking

• Real-time clock — A real time clock (RTC) is a computer clock (most often in the form of an integrated circuit) that keeps track of the current time. Although the term often refers to the devices in personal computers, servers and embedded systems, RTCs are… …   Wikipedia

• hardware interrupt —    An interrupt or request for service generated by a hardware device, such as a keystroke or a tick from the clock. Because the processor may receive several such signals simultaneously, hardware interrupts are usually assigned a priority level… …   Dictionary of networking

• MOS Technology CIA — Pin configuration of the 6526 CIA The 6526/8520 Complex Interface Adapter (CIA) was an integrated circuit made by MOS Technology. It served as a I/O port controller for the 6502 family of microprocessors, providing for parallel and serial I/O… …   Wikipedia

• Intel 8253 — The Intel 8253 and 8254 are Programmable Interval Timers (PITs), which perform timing and counting functions. They are found in all x86 PCs. History In modern times, this PIT is not included as a separate chip in an x86 PC. Rather, its… …   Wikipedia

• Deferred Procedure Call — A Deferred Procedure Call (DPC) is a Microsoft Windows operating system mechanism which allows high priority tasks (e.g. an interrupt handler) to defer required but lower priority tasks for later execution. This permits device drivers and other… …   Wikipedia

• Jiffy (time) — This article discusses the word jiffy in the context of measuring time. For other uses, see Jiffy (disambiguation). Jiffy is an informal term for any unspecified short period of time, as in I ll be back in a jiffy . From this it has acquired a… …   Wikipedia

• Page replacement algorithm — This article is about algorithms specific to paging. For outline of general cache algorithms (e.g. processor, disk, database, web), see Cache algorithms. In a computer operating system that uses paging for virtual memory management, page… …   Wikipedia