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  2. Asynchronous I/O - Wikipedia

    en.wikipedia.org/wiki/Asynchronous_I/O

    But such an approach, called synchronous I/O or blocking I/O, would block the progress of a program while the communication is in progress, leaving system resources idle. When a program makes many I/O operations (such as a program mainly or largely dependent on user input ), this means that the processor can spend almost all of its time idle ...

  3. Use POP or IMAP to sync AOL Mail on a third-party app or ...

    help.aol.com/articles/how-do-i-use-other-email...

    Windows 10 Mail – Follow steps for "Add an account using advanced setup." Windows Live Mail – Follow steps "To change server settings for your email service provider." IncrediMail – Follow steps "How do I reconfigure my email account?" iPhone Mail app – Follow steps to "Set up your email account manually."

  4. Non-blocking algorithm - Wikipedia

    en.wikipedia.org/wiki/Non-blocking_algorithm

    Wait-freedom is the strongest non-blocking guarantee of progress, combining guaranteed system-wide throughput with starvation-freedom.An algorithm is wait-free if every operation has a bound on the number of steps the algorithm will take before the operation completes. [15]

  5. Comparison of mail servers - Wikipedia

    en.wikipedia.org/wiki/Comparison_of_mail_servers

    Mail is read either through direct access (shell login) or mailbox protocols like POP and IMAP. Unix-based MTA software largely acts to enhance or replace the respective system's native MTA. Microsoft Windows servers do not natively implement e-mail, thus Windows-based MTAs have to supply all the necessary aspects of e-mail-related functionality.

  6. Download your email from AOL Mail with IMAP

    help.aol.com/articles/download-your-email-from...

    To resolve this, move some of the email to a new folder in your account. Use this info to configure your app. Incoming Mail (IMAP) ServerServer - export.imap.aol.com • Port - 993 • Requires SSL - Yes. Outgoing Mail (SMTP) ServerServer - smtp.aol.com • Port - 465 • Requires SSL - Yes • Requires authentication - Yes. Your ...

  7. Block and unblock email addresses in AOL Mail

    help.aol.com/articles/block-and-unblock-email...

    Block email addresses. 1. Open an email or select it from your mailbox. 2. Click the More icon. 2. Click Block Senders. 2. Optionally, select to also delete emails you've received from the sender.

  8. Simple Mail Transfer Protocol - Wikipedia

    en.wikipedia.org/wiki/Simple_Mail_Transfer_Protocol

    The initiating host, the SMTP client, can be either an end-user's email client, functionally identified as a mail user agent (MUA), or a relay server's mail transfer agent (MTA), that is an SMTP server acting as an SMTP client, in the relevant session, in order to relay mail. Fully capable SMTP servers maintain queues of messages for retrying ...

  9. Busy waiting - Wikipedia

    en.wikipedia.org/wiki/Busy_waiting

    In computer science and software engineering, busy-waiting, busy-looping or spinning is a technique in which a process repeatedly checks to see if a condition is true, such as whether keyboard input or a lock is available. Spinning can also be used to generate an arbitrary time delay, a technique that was necessary on systems that lacked a ...