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performed by the SCI are found only on main-frame
machines.
Table
I
lists the general categories
of
functions provided by the DXIO operating system
and initiated by the SCI.
Appendix A lists all standard SCI commands
available with the DXIO operating system. Activation
of SCI commands is via a hierarchy of command
menus made available to all types of system
terminals. The command menus provide each
terminal on-line command prompts by logical
grouping. The example in figure 3 illustrates the
menus for initialization of a disk volume.
Custom commands can
be
integrated into the
framework of the DXIO operating system. Users can
combine SCI primitives with their own application
language to provide a user interface that is unique
to the terminology and customary procedures of the
application. Figure 4 is an example of a custom
procedure.
Table 1. Areas Served by DX10 SCI Commands
Log in and out
Time and date setup and ill4uiry
Disk volume initialization, installation,
and unloading
Disk directory backup, restore, and copy
Directory and file creation and deletion
Synonym support
File alias name
File name changing and protecting
Directory and file viewing and listing
Directory and file copying
Logical unit assignment, positioning, and release
System I/O status display
- ·Systemtaskstatusdisplay
Program activation and control
Batch command input, activation, and status
Station control (user I D, terminal status, etc.)
Program installation and deletion
System log activation
Program debugging including:
Breakpoints
Memory/disk dump or display
Decimal/hexadecimal arithmetic aid
I nteractively controlled program trace
Text Edit control
COBOL, RPG II, DBMS 990, Business BASIC,
BASIC, FORTRAN, and Pascal compilers and
assembly-language assemblies
Link Edit activation
Sort/Merge activation
12
SELECT ONE OF THE FOLLOWING
COMMAND GROUPS
/PROG
PROGRAM OPERATIONS
/ENTRY -
DATA ENTRY
\
/APPL
APPLICATIONS
.l
APPLICATIONS
/ACCT
-
ACCOUNTING
/PAY
PAYROLL
/INV
-
INVENTORY
/ANAL
-
SALES ANALYSIS
~
PAYROLL
I
/WKPAY -
WEEKLY PAYROLL
/MTD
-
MONTH TO DATE
/YTD
-
YEAR TO DATE
/W2
-
W2 PROCESSING
\
/W4
-
W4 PROCESSING
J
WJ:J:1l1
v
PAVDnl I
7 ------- ....... _--
';
NAME
EMP.NO. ___
DEPT.
RATE
REG. HRS.
O.T.HRS. _ _
DEDUCTIONS INS.
MED.
CONT' _ _
j
Figure 4. Custom Procedure Example
Interactive Operation.
The DXIO operating
system features an excellent interactive user interface
for control of the system through SCI. All entries
keyed by an operator are meaningfully prompted.
·Fieldsare-easily edited by tne'opetaI6tario'are . ,
verified by the system. The number of prompts, and
therefore time, can be conserved since all arguments
for a command can be entered before the system
requests them by prompt. When a partial list of
arguments is entered, any arguments not already
supplied by the operator or default specified are then
prompted.
Batch Operation.
The background program at the
terminal may be a copy of the SCI. In this case, the
SCI is interpreting commands in the background
(batch processing). Batch input is from any
sequentially oriented file device but not from the
terminal itself. An operator can initiate batch
processing, query its status, and receive information
concerning its normal or abnormal completion.
Certain interactive commands are inappropriate for
batch operation, but all other SCI commands are
available.
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