Technology terms starting with P

1,398 terms

  1. protocol data unit (PDU) Information that is delivered as a unit among peer entities of a network and that may contain control information, address information, or data. 2.
  2. protocol discriminator (PD) field The first octet of the packet header that identifies the protocol used to transport the frame. [T1.509-1995]
  3. Protocol Entity Entity that follows a set of rules and formats (semantic and syntactic) that determines the communication behavior of other entities.
  4. Protocol farm A collection of virtual servers that are used as the primary connection point for users in an organization.
  5. protocol hierarchy In open systems architecture, the distribution of network protocol among the various layers of the network. [From Weik '89]
  6. Protocol Run An instance of the exchange of messages between a claimant and a verifier in a defined authentication protocol that results in the authentication (or…
  7. protocol translator In a communications system, the collection of hardware, software, firmware, or any combination of these, that is required or used to convert the protocols…
  8. protocol-control information The queries and replies among communications equipment to determine the respective capabilities of each end of the communications link. 2.
  9. prototype An optional part of a "subroutine" declaration telling the Perl compiler how many and what flavor of arguments may be passed as "actual arguments", so…
  10. provenance The geographical and/or genetic origin of an individual.
  11. provisioned IOPS A storage option designed to deliver fast, predictable, and consistent I/O performance.
  12. Provisioning Provisioning is the act of putting a grid component into the active state so that it is available to a consumer of the service or resource it supplies.
  13. proximal tolerance The minimum distance in ground units separating all point locations on the horizontal plane.
  14. Proximity A measure of how close words are to one another. A page which has words near one another may be deemed to be more likely to satisfy a search query…
  15. Proximity boosting Documents that contain the query terms closer together are ranked higher than documents that contain these terms distributed throughout the document.
  16. Proximity search An extension to Boolean searching, this technique checks the position of terms and only matches those within the specified distance.
  17. Proxy If you own common stock in a US corporation, you have the right to vote on certain company policies and elect the board of directors by casting a proxy…
  18. Proxy Agent A proxy agent is a software application running on a firewall or on a dedicated proxy server that is capable of filtering a protocol and routing it to…
  19. proxy certificate A short lived certificate issued using a EEC. A proxy certificate typically has the same effective subject as the EEC that issued it and can thus be used…
  20. proxy credentials The combination of a proxy certificate and its corresponding private key. GSI typically stores proxy credentials in /tmp/x509up_u<uid> , where <uid> is…
  21. proxy mode The default mode of operation for NetCache in which the cache serves all users who set up their browsers to use NetCache as their proxy.
  22. proxy server A server that receives requests intended for another server and that acts on the client's behalf (as the client's proxy) to obtain the requested service.
  23. PRP Personnel Reliability Program (ILS term).
  24. PRR Production Readiness Review.
  25. PRS See primary reference source.
  26. PS (1) Physical Security. (2) Product Service.
  27. PSA A substance produced by the prostate. It may be found in higher levels in the blood of men who have prostate cancer, benign prostatic hyperplasia…
  28. PSAC Presidents Science Advisory Committee.
  29. PSC Principle Subordinate Command.
  30. PSCC Physical Security Control Center.
  31. PSD Power System Demonstrator.
  32. PSE Peculiar Support Element.
  33. pseudo bit-error ratio See PBER.
  34. pseudo node A node where two, and only two, arcs intersect, or a single arc that connects with itself.
  35. pseudo parameter A predefined setting, such as AWS:StackName that can be used in AWS CloudFormation templates without having to declare them.
  36. pseudofunction A construct that sometimes looks like a function but really isn't. Usually reserved for "lvalue" modifiers like my, for "context" modifiers like scalar…
  37. pseudohash A reference to an array whose initial element happens to hold a reference to a hash.
  38. pseudoliteral An "operator" that looks something like a "literal", such as the output-grabbing operator, `command`.
  39. Pseudonym A subscriber name that has been chosen by the subscriber that is not verified as meaningful by identity proofing.
  40. pseudorandom noise Noise that satisfies one or more of the standard tests for statistical randomness.
  41. pseudorandom number generator A device that produces a stream of unpredictable, unbiased, and usually independent bits. 2.
  42. Pseudorandom number generator (PRNG) An algorithm that produces a sequence of bits that are uniquely determined from an initial value called a seed.
  43. pseudorandom number sequence An ordered set of numbers that has been determined by some defined arithmetic process but is effectively a random number sequence for the purpose for…
  44. Psi Pounds of pressure per square inch.
  45. PSK Abbreviation for phase-shift keying.
  46. PSM Portable Space Model.
  47. PSN Packet Switching Node.
  48. PSO An Active Directory object that is stored in the Password Settings Container. The Password Settings object holds the attributes of a certain fine-grained…
  49. psophometer An instrument that provides a visual indication of the audible effects of disturbing voltages of various frequencies.
  50. psophometric voltage Circuit noise voltage measured with a psophometer that includes a CCIF-1951 weighting network.
  51. psophometric weighting A noise weighting established by the International Consultative Committee for Telephony (CCIF, which became CCITT and, more recently, ITU-T), designated…
  52. psophometrically weighted dBm See dBm(psoph), dBm0p.
  53. PSP Program Support Plan.
  54. PSRR Preliminary System Requirements Review.
  55. PSS (1) Passive Sensor System. (2) Passive Surveillance Sensor (Project 1106 term).
  56. PSSC Preliminary System Security Concept.
  57. PSTN Public Switched Telephone Network
  58. PSTN (public service telephone network) The public service telephone network (PSTN) is the traditional, land-line based system for exchanging phone calls.
  59. PSU Power supply unit. The replaceable device that supplies power to a NetApp appliance.
  60. PSW Packet Switching.
  61. PSYOP Psychological Operations.
  62. PsyOps Psychological Operations.
  63. PTBT Partial Test Ban Treaty.
  64. PTDB Problem Tracking Data Base.
  65. PTE Patent Term Extension -- see MPEP 2700 for more -- see PTE Calculation for more
  66. PTF Abbreviation for patch and test facility.
  67. PTI Pacific Telecom, Incorporated.
  68. PTM Abbreviation for pulse-time modulation.
  69. PTO Patent and Trademark Office, former designation for USPTO also a type of form designation for forms generated by the USPTO (as in PTO-892)
  70. PTP (Pass-Through-Port) allows cartridges to be passed between StorageTek robotic units.
  71. PTPM Product Transition Procedure Manual.
  72. PtSi Platinum Silicide .
  73. PTT Abbreviation for postal, telegraph, and telephone (organization). In countries having nationalized telephone and telegraph services, the organization…
  74. PTTI Abbreviation for precise time and time interval.
  75. PTV Propulsion Test Vehicle.
  76. PTWG Producible Technology Working Groups.
  77. Pu Plutonium. 237
  78. public A Java keyword used in a method or variable declaration. It signifies that the method or variable can be accessed by elements residing in other classes.
  79. Public (Asymmetric) Key Encryption Public key cryptography uses key pairs, a public key and a mathematically related private key.
  80. public access The access privilege in an access control list (ACL) that includes Depositor access and No Access and that allows reading, writing, and copying public…
  81. public AMI An Amazon Machine Image that all AWS accounts have permission to launch.
  82. Public Cloud A cloud computing environment that is open for use to the general public, whether individuals, corporations or other types of organizations.
  83. public correspondence Any telecommunication which the offices and stations must, by reason of their being at the disposal of the public, accept for transmission. [NTIA] [RR] 2.
  84. public cryptography [The] Body of cryptographic and related knowledge, study, techniques, and applications that is, or is intended to be, in the public domain. [INFOSEC-99]
  85. public data According to UCA 63G-2-301, data on individuals collected and maintained by a governmental entity, necessary for the administration of government…
  86. public data network (PDN) A network established and operated by a telecommunications administration, or a recognized private operating agency, for the specific purpose of providing…
  87. public data set A large set of public data that can be seamlessly integrated into AWS cloud-based applications.
  88. public data transmission service A data transmission service that is established and operated by a telecommunication administration, or a recognized private operating agency, and uses a…
  89. public domain Something not owned by anybody. Perl is copyrighted and is thus not in the public domain--it's just "freely available" and "freely redistributable".
  90. public folder A folder that coworkers can use to share a wide range of information, such as project and work information, discussions about a general subject, and…
  91. public folder affinity Enables users in one site to open public folders on servers in other sites. [Exchange 5.5]
  92. public folder database A database that stores public folders, indexes their contents, and assists in the replication of the folders with other Exchange servers.
  93. public folder distribution The distribution method by which Outlook 2003 or earlier clients that are working offline or through a dial-up connection access the offline address book…
  94. public folder hierarchy A tree or hierarchy of public folders with a single public folder store. [Exchange 2003]
  95. public folder replication The process of keeping copies of public folders on other servers up-to-date and synchronized with each other. [Exchange 2003]
  96. public folder store The part of the Exchange store that maintains information in public folders. A public folder store consists of a rich-text .
  97. Public folder tree (aka public folder root and top level hierarchy - TLH) A collection of public folders created under the same hierarchical namespace. Previous releases of Exchange server used only a single tree (called: All…
  98. public information store The part of the information store that maintains information in public folders. [Exchange 5.5]
  99. public interface The members of a class prefixed with the public access modifier. All such members are visible to every class within a program.
  100. public IP address All EC2 instances are assigned two IP addresses at launch, which are directly mapped to each other through Network Address Translation (NAT): a private…