IBM 3274 control unit
E699607
The IBM 3274 control unit is a mainframe peripheral device that manages and multiplexes multiple IBM 3270-family terminals and printers, handling their communication with the host computer.
All labels observed (6)
| Label | Occurrences |
|---|---|
| IBM 3179-G graphics display | 1 |
| IBM 3270 terminals | 1 |
| IBM 3274 control unit canonical | 1 |
| IBM 3277 display station | 1 |
| IBM 3278 display station | 1 |
| IBM 3279 color display station | 1 |
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
IBM 3270 family device
ⓘ
mainframe control unit ⓘ |
| category |
computer terminal controller
ⓘ
mainframe peripheral ⓘ |
| compatibleWith |
IBM 303x series
NERFINISHED
ⓘ
IBM 308x series NERFINISHED ⓘ IBM 3090 NERFINISHED ⓘ IBM System/370 NERFINISHED ⓘ |
| connectsTo |
IBM 3268 printer
NERFINISHED
ⓘ
IBM 3278 display terminal NERFINISHED ⓘ IBM 3279 color display terminal NERFINISHED ⓘ IBM 3287 printer NERFINISHED ⓘ |
| connectsVia |
channel-attached interface
ⓘ
cluster controller link ⓘ |
| dataFlow |
control-unit-to-host
ⓘ
control-unit-to-terminal ⓘ host-to-control-unit ⓘ terminal-to-control-unit ⓘ |
| designedFor | IBM mainframe computers NERFINISHED ⓘ |
| function |
handles communication with host computer
ⓘ
manages IBM 3270-family printers ⓘ manages multiple IBM 3270-family terminals ⓘ multiplexes terminal I/O ⓘ |
| hasFeature |
buffering of terminal data
ⓘ
local editing of screen data ⓘ screen formatting support ⓘ support for multiple logical terminals ⓘ support for printers in the same cluster ⓘ |
| introducedBy | IBM NERFINISHED ⓘ |
| manufacturer | IBM NERFINISHED ⓘ |
| marketedAs | 3270 control unit ⓘ |
| partOf | IBM 3270 information display system NERFINISHED ⓘ |
| predecessor | IBM 3271 control unit NERFINISHED ⓘ |
| role |
intermediary between terminals and host
ⓘ
offloads terminal management from host CPU ⓘ |
| successor | IBM 3174 Establishment Controller NERFINISHED ⓘ |
| supportsProtocol | IBM 3270 data stream ⓘ |
| supportsTopology |
clustered terminals
ⓘ
remote terminal configurations ⓘ |
| technology |
block-mode terminal handling
ⓘ
synchronous communication ⓘ |
| usedIn |
banking terminal networks
ⓘ
insurance and financial services terminals ⓘ mainframe data entry environments ⓘ online transaction processing systems ⓘ time-sharing systems ⓘ |
| usedWith |
IBM 4300 series mainframes
NERFINISHED
ⓘ
IBM 4381 NERFINISHED ⓘ |
Referenced by (6)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
IBM 3277 display station
this entity surface form:
IBM 3278 display station
this entity surface form:
IBM 3279 color display station
this entity surface form:
IBM 3179-G graphics display