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  2. File system fragmentation - Wikipedia

    en.wikipedia.org/wiki/File_system_fragmentation

    When a file system is first initialized on a partition, it contains only a few small internal structures and is otherwise one contiguous block of empty space. [a] This means that the file system is able to place newly created files anywhere on the partition. For some time after creation, files can be laid out near-optimally.

  3. Uninitialized variable - Wikipedia

    en.wikipedia.org/wiki/Uninitialized_variable

    Initialized does not mean correct if the value is a default one. (However, default initialization to 0 is a right practice for pointers and arrays of pointers, since it makes them invalid before they are actually initialized to their correct value.) In C, variables with static storage duration that are not initialized explicitly are initialized ...

  4. Solid-state storage - Wikipedia

    en.wikipedia.org/wiki/Solid-state_storage

    An SSD, in form of a 2.5-inch bay device that uses Serial ATA (SATA) interface Internals of an SD card , showing the flash memory and controller integrated circuits A solid-state drive (SSD) provides secondary storage for relatively complex systems including personal computers , embedded systems , portable devices , large servers and network ...

  5. Self-Monitoring, Analysis and Reporting Technology - Wikipedia

    en.wikipedia.org/wiki/Self-Monitoring,_Analysis...

    This Intel 120GB SSD also appears to be in perfect condition. [ 2 ] Self-Monitoring, Analysis, and Reporting Technology ( S.M.A.R.T. or SMART ) is a monitoring system included in computer hard disk drives (HDDs) and solid-state drives (SSDs). [ 3 ]

  6. Disk formatting - Wikipedia

    en.wikipedia.org/wiki/Disk_formatting

    Formatting a disk for use by an operating system and its applications typically involves three different processes. [e]Low-level formatting (i.e., closest to the hardware) marks the surfaces of the disks with markers indicating the start of a recording block (typically today called sector markers) and other information like block CRC to be used later, in normal operations, by the disk ...

  7. Solid-state drive - Wikipedia

    en.wikipedia.org/wiki/Solid-state_drive

    Defragmentation should be disabled on solid-state drives because the location of the file components on an SSD does not significantly impact its performance, but moving the files to make them contiguous using the Windows Defrag routine will cause unnecessary write wear on the limited number of write cycles on the SSD.

  8. Bootloader - Wikipedia

    en.wikipedia.org/wiki/Bootloader

    The computer first executes a relatively small program stored in the boot ROM, which is read-only memory (ROM, and later EEPROM, NOR flash) along with some needed data, to initialize hardware devices such as CPU, motherboard, memory, storage and other I/O devices, to access the nonvolatile device (usually block device, e.g., NAND flash) or ...

  9. Trim (computing) - Wikipedia

    en.wikipedia.org/wiki/Trim_(computing)

    TRIM tells the SSD to mark an LBA region as invalid and subsequent reads on the region will not return any meaningful data. For a very brief time, the data could still reside on the flash internally. For a very brief time, the data could still reside on the flash internally.