Difference between revisions of "FILE 3.5"

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Line 19: Line 19:
 
| MT
 
| MT
 
|:MAGTAPE;
 
|:MAGTAPE;
|  
+
| sequential magnetic tape
 
|-
 
|-
 
| SDP
 
| SDP
 
|:SDP;
 
|:SDP;
|  
+
| unused- was Sequential Disk Processing - MUMPS-as-OS disk storage
 
|-
 
|-
 
| SPL
 
| SPL
 
|:SPOOL;
 
|:SPOOL;
|  
+
| unused - was in-MUMPS disk/printer spooling
 
|-
 
|-
 
| BAR
 
| BAR
Line 35: Line 35:
 
| HFS
 
| HFS
 
|:HOST FILE SERVER;
 
|:HOST FILE SERVER;
| Filesystem storage, print spooling, etc.
+
| commonly used - Filesystem storage, print spooling, etc.
 
|-
 
|-
 
| VTRM
 
| VTRM
Line 51: Line 51:
 
| CHAN
 
| CHAN
 
|:NETWORK CHANNEL;
 
|:NETWORK CHANNEL;
|  
+
| devices attached with TCP/IP addresses and ports
 
|-
 
|-
 
| IMPC
 
| IMPC
 
|:IMAGING WORK STATION
 
|:IMAGING WORK STATION
 
|}
 
|}

Revision as of 16:21, 23 June 2009

The DEVICE File (#3.5) is stored in the global root of ^%ZIS(1, and each entry corresponds to a name for I/O (Input and Output) in the VistA system. Generally speaking characters are sent to and received from an I/O device in most computer systems as a normal part of interaction with a user.

The devices in VistA are segmented by the TYPE Field which has the following values:

*INTERNAL ABBREVIATION* *EXTERNAL VALUE* *Intended use*
TRM : TERMINAL; hard connected terminals such as consoles
OTH :OTHER;
MT :MAGTAPE; sequential magnetic tape
SDP :SDP; unused- was Sequential Disk Processing - MUMPS-as-OS disk storage
SPL :SPOOL; unused - was in-MUMPS disk/printer spooling
BAR :BARCODE READER;
HFS :HOST FILE SERVER; commonly used - Filesystem storage, print spooling, etc.
VTRM :VIRTUAL TERMINAL; soft connect terminals over the network
HG :HUNT GROUP; providing for banks of "alike" devices
RES :RESOURCES; synchronization and limiting background processes
CHAN :NETWORK CHANNEL; devices attached with TCP/IP addresses and ports
IMPC :IMAGING WORK STATION