September 2005

  • Super Audio CD (SACD)

    Super Audio Compact Disk (SACD) is a high-resolution audio CD format.

  • FICON (Fiber Connectivity)

    FICON (for Fiber Connectivity) is a high-speed input/output (I/O) interface for mainframe computer connections to storage devices.

  • bus

    In a computer or on a network, a bus is a transmission path on which signals are dropped off or picked up at every device attached to the line.

  • holographic storage (holostorage)

    Holographic storage is computer storage that uses laser beams to store computer-generated data in three dimensions.

  • flash memory

    Flash memory is a type of constantly-powered nonvolatile memory that can be erased and reprogrammed in units of memory called blocks.

  • orthogonal

    In geometry, orthogonal means "involving right angles" (from Greek ortho, meaning right, and gon meaning angled).

  • ASPI (Advanced SCSI Programming Interface)

    ASPI (Advanced SCSI Programming Interface) specifies how an application program can communicate with a SCSI (Small Computer System Interface) device through a common SCSI device driver.

  • nonvolatile storage (NVS)

    Also see our Fast Guide to RAM. Nonvolatile (sometimes written as "non-volatile") storage (NVS) - also known as nonvolatile memory or nonvolatile random access memory (NVRAM) - is a form of static ...

  • switching fabric

    Switching fabric is the combination of hardware and software that moves data coming in to a network node out by the correct port (door) to the next node in the network.

  • mirror

    A mirror is a Web site or set of files on a computer server that has been copied to another computer server so that the site or files are available from more than one place.

  • diskette (floppy disk)

    A diskette is a random access, removable data storage medium that can be used with personal computers.

  • DVD (digital video disk)

    DVD is an optical disc technology with a 4.7 gigabyte storage capacity on a single-sided, one-layered disk, which is enough for a 133-minute movie.

  • FPM DRAM (Fast Page Mode DRAM)

    Prior to newer forms of dynamic random access memory (DRAM), FPM DRAM (Fast Page Mode DRAM) was the most common kind of DRAM in personal computers.

  • IDE (Integrated Drive Electronics)

    IDE also stands for integrated development environment.

  • compression

    Compression is the reduction in size of data in order to save space or transmission time. Learn how files are compressed and find examples of Web compression in this definition.

  • EDO RAM (extended data output RAM)

    EDO (extended data output) RAM is a type of random access memory (RAM) chip that improves the time to read from memory on faster microprocessors such as the Intel Pentium.

  • nonvolatile memory

    Also see our Fast Guide to RAM. Nonvolatile memory is a general term for all forms of solid state (no moving parts) memory that do not need to have their memory contents periodically refreshed.

  • optical storage

    Optical storage is any storage method in which data is written and read with a laser for archival or backup purposes.

  • access time

    Access time is the time from the start of one storage device access to the time when the next access can be started.

  • depository

    A depository is a file or set of files in which data is stored for the purpose of safekeeping or identity authentication.