ALERT

[FREE DEMO] Deploy Your Enterprise Cloud in Minutes

Polled Interrupt

Definition - What does Polled Interrupt mean?

A polled interrupt is a certain kind of input/output (I/O) interrupt that sends a message to the part of the computer that houses the I/O interface. The message states that a device is ready to be accessed without an identifying device.

Techopedia explains Polled Interrupt

An interrupt controller will poll all devices on a computer to determine which one sent out the request. Polled interrupt is an inefficient method of data transfer, spending much time checking the ready condition of a computer's devices.

An alternative that is more efficient is a vectored interrupt, which can send a signal that includes the identity of the device. All input/output in modern computers is done by interrupt-driven I/Os, which interrupt the process when they are ready to transfer data. The processor will perform other tasks while waiting for an interrupt.

Techopedia Deals

Connect with us

Techopedia on Linkedin
Techopedia on Linkedin
Tweat cdn.techopedia.com
"Techopedia" on Twitter


'@Techopedia'
Sign up for Techopedia's Free Newsletter!

Email Newsletter

Join thousands of others with our weekly newsletter

Resources
The 4th Era of IT Infrastructure: Superconverged Systems
The 4th Era of IT Infrastructure: Superconverged Systems:
Learn the benefits and limitations of the 3 generations of IT infrastructure – siloed, converged and hyperconverged – and discover how the 4th...
Approaches and Benefits of Network Virtualization
Approaches and Benefits of Network Virtualization:
Businesses today aspire to achieve a software-defined datacenter (SDDC) to enhance business agility and reduce operational complexity. However, the...
Free E-Book: Public Cloud Guide
Free E-Book: Public Cloud Guide:
This white paper is for leaders of Operations, Engineering, or Infrastructure teams who are creating or executing an IT roadmap.
Free Tool: Virtual Health Monitor
Free Tool: Virtual Health Monitor:
Virtual Health Monitor is a free virtualization monitoring and reporting tool for VMware, Hyper-V, RHEV, and XenServer environments.
Free 30 Day Trial – Turbonomic
Free 30 Day Trial – Turbonomic:
Turbonomic delivers an autonomic platform where virtual and cloud environments self-manage in real-time to assure application performance.