Technology terms starting with Z

40 terms

  1. Z Zulu time; the same as Universal Coordinated Time (UTC), i.e. 18z is the same as 18:00 UTC.
  2. Z Time Abbreviation for Zulu Time. See Coordinated Universal Time.
  3. z-value The value of a surface at a particular x,y location (e.g., elevation). Often referred to as spot values or spot elevations.
  4. Z39.50 An ANSI protocol standard for WAN (wide area network) information query and exchange to share library referencing requests via distributed electronic…
  5. ZBTSI (zero-byte time slot interchange) A technique applied to a DS1 frame to ensure pulse density requirements are met, where bits 2 through 193 of each frame are scrambled to minimize the…
  6. Zeal Non-commercial directory which was bought by Looksmart for $20 million, then abruptly shut down with little to no warning.
  7. Zeal - Volunteer Built Web Directory First launched in 1999, Zeal was a volunteer-built web directory which was bought by LookSmart for $20 million in October 2000.
  8. zero Verb. To replace all blocks on a disk with zeros.
  9. zero dBm transmission level point (0 dBm TLP) In a communication system, a point at which the reference level is 1 mW, i.e., 0 dBm.
  10. zero dispersion window Synonym minimum-dispersion window.
  11. zero insertion See zero-bit insertion.
  12. Zero Point The location of the center of a burst of a nuclear weapon at the instant of detonation.
  13. Zero results A futile query; a query that returns 0 (no) results.
  14. zero stuffing See zero-bit insertion.
  15. zero suppression The elimination of nonsignificant zeros from a numeral.
  16. zero transmission level point (0TLP) Synonym zero dBm transmission level point.
  17. zero width A subpattern "assertion" matching the "null string" between characters.
  18. zero-bit insertion : A bit-stuffing technique used with bit-oriented protocols to ensure that six consecutive "1" bits never appear between the two flags that define the…
  19. Zero-Channel RAID A technology that uses the SCSI controller on the motherboard (instead of a SCSI controller on the RAID card) to enable hardware RAID on a motherboard.
  20. zero-dispersion slope In a single-mode optical fiber, the rate of change of dispersion, with respect to wavelength, at the fiber's zero-dispersion wavelength.
  21. zero-dispersion wavelength In a single-mode optical fiber, the wavelength or wavelengths at which material dispersion and waveguide dispersion cancel one another.
  22. zero-level decoder A decoder that yields an analog level of 0 dBm at its output when the input is the digital milliwatt signal. [47CFR] Note: The signal is a 1-kHz sine wave.
  23. zerofill To fill unused storage locations in an information system (IS) with the representation of the character denoting "0". [INFOSEC-99]
  24. Zeroization A method of erasing electronically stored data, cryptographic keys, and CSPs by altering or deleting the contents of the data storage to prevent recovery…
  25. zeroize To remove or eliminate the key from a crypto-equipment or fill device. [INFOSEC-99]
  26. zeroized Electronically stored data that have been degaussed, erased, or overwritten. [After X9.17]
  27. Zettabyte 1024 (or 1000) exabytes.
  28. ZIF Zero Insertion Force.
  29. zip file A file used to store compressed versions of files. In connection with Java bytecode files, these have largely been superseded by Java Archive (JAR) files.
  30. zip-cord In optical communications, a two-fiber cable consisting essentially of two single-fiber cables having their jackets conjoined by a strip of jacket…
  31. Zombie The classic version is a mindless, frequently violent, product of supernatural magic or pharmacology while the modern incarnation is a reanimated human…
  32. Zone A geographical area shown on a Flood Hazard Boundary Map or a Flood Insurance Rate Map that reflects the severity or type of flooding in the area.
  33. zone of influence The area surrounding a power station that is raised in potential above a remote or true grounding (earthing) point. [T1.318-2000]
  34. zone of protection The space, adjacent to a lightning protection system, that is substantially immune to direct lightning strokes. [After T1.318-2000]
  35. zone of silence Synonym skip zone.
  36. Zoning The ability of local governments to specify the use of private property in order to control development within designated areas of land.
  37. zoom To enlarge and display greater detail of a portion of a geographic data set.
  38. zooming The act of changing the scale of a display, generally without changing the amount of screen space it occupies. [T1.232-1996]
  39. ZULU Time Zone Indicator for Universal Time.
  40. Zulu Time (Z) Means Coordinated Universal Time (UTC); the international time standard kept at Greenwich, England.