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  2. Hard disk drive performance characteristics - Wikipedia

    en.wikipedia.org/wiki/Hard_disk_drive...

    A hard disk head on an access arm resting on a hard disk platter. The access time or response time of a rotating drive is a measure of the time it takes before the drive can actually transfer data. The factors that control this time on a rotating drive are mostly related to the mechanical nature of the rotating disks and moving heads. It is ...

  3. IOPS - Wikipedia

    en.wikipedia.org/wiki/IOPS

    Input/output operations per second (IOPS, pronounced eye-ops) is an input/output performance measurement used to characterize computer storage devices like hard disk drives (HDD), solid state drives (SSD), and storage area networks (SAN).

  4. Memory hierarchy - Wikipedia

    en.wikipedia.org/wiki/Memory_hierarchy

    Since response time, complexity, and capacity are related, the levels may also be distinguished by their performance and controlling technologies. [1] Memory hierarchy affects performance in computer architectural design, algorithm predictions, and lower level programming constructs involving locality of reference .

  5. Hard disk drive - Wikipedia

    en.wikipedia.org/wiki/Hard_disk_drive

    Two 2.5" external USB hard drives Seagate Hard Drive with a controller board to convert SATA to USB, FireWire, and eSATA Current external hard disk drives typically connect via USB-C; earlier models use USB-B (sometimes with using of a pair of ports for better bandwidth) or (rarely) eSATA connection. Variants using USB 2.0 interface generally ...

  6. Doctors Share Lifesaving Steps to Take During a Medical Emergency

    www.aol.com/doctors-share-lifesaving-steps...

    Call 911 and find a safe spot (out of the way of traffic, for example) to provide aid. If the person is conscious, deliver 5 back blows by hitting the heel of your hand between their shoulder blades.

  7. Hero cop dispatched to help 10-year-old who called 911 for ...

    www.aol.com/hero-cop-dispatched-help-10...

    Sheriffs in Wisconsin sprang into action Friday night when a 10-year-old boy called 911 with a dire emergency: math homework. Hero cop dispatched to help 10-year-old who called 911 for help with ...

  8. Can I drive myself to the hospital? Know when to call 911 to ...

    www.aol.com/drive-myself-hospital-know-call...

    EMS also will take you to the hospital that is the closest cardiac or stroke center, which might not be the hospital you thought to drive to. You feel as if you might pass out. Do not drive. Call 911.

  9. Hierarchical storage management - Wikipedia

    en.wikipedia.org/wiki/Hierarchical_storage...

    HSM systems exist because high-speed storage devices, such as solid-state drive arrays, are more expensive (per byte stored) than slower devices, such as hard disk drives, optical discs and magnetic tape drives. While it would be ideal to have all data available on high-speed devices all the time, this is prohibitively expensive for many ...