0%

3270

3 3

Transcription

    • US Pronunciation
    • US IPA
    • US Pronunciation
    • US IPA

Definitions of 3270 word

  • abbreviation Technical meaning of 3270 IBM 3270 3
  • noun Definition of 3270 in Technology (hardware)   A class of terminals made by IBM known as "Display Devices", normally used to talk to IBM mainframes. The 3270 attempts to minimise the number of I/O interrupts required by accepting large blocks of data, known as datastreams, in which both text and control (or formatting functions) are interspersed allowing an entire screen to be "painted" as a single output operation. The concept of "formatting" in these devices allows the screen to be divided into clusters of contiguous character cells for which numerous attributes (color, highlighting, character set, protection from modification) can be set. Further, using a technique known as 'Read Modified' the changes from any number of formatted fields that have been modified can be read as a single input without transferring any other data, another technique to enhance the terminal throughput of the CPU. The 3270 had twelve, and later twenty-four, special Programmed Function Keys, or PF keys. When one of these keys was pressed, it would cause the device to generate an I/O interrupt and present a special code identifying which key was pressed. Application program functions such as termination, page-up, page-down or help could be invoked by a single key-push, thereby reducing the load on very busy processors. A version of the IBM PC called the "3270 PC" was released in October 1983. It included 3270 terminal emulation. See also broken arrow. 1

Information block about the term

Parts of speech for 3270

noun
adjective
verb
adverb
pronoun
preposition
conjunction
determiner
exclamation

See also

Matching words

Was this page helpful?
Yes No
Thank you for your feedback! Tell your friends about this page
Tell us why?