Terms to know
- JCL
- Job Control Language
- TPS
- Transactions per second
- CHPID
- Channel path identifiers
- PCHID
- Physical channel identifiers
- DASD
- Direct access storage device
- WLM
- Workload management
- TSO
- Time Sharing Option/Extensions
- ISPF
- Interactive System Productivity Facility
- CLIST
- Command list
- PA (PA1,PA3) keys
- Program Action keys
- VSAM
- Virtual Storage Access Manager
- VSM
- Virtual Storage Manager
- KSDS
- Key sequenced data set
- QSAM
- Queued Sequential Access Method
- BSAM
- Basic Sequential Access Method
- BDAM
- Basic Direct Access Method
- BPAM
- Basic Partitioned Access Method
- VSAM
- Virtual Storage Access Method
- DASD
- Direct Access Storage Device, another name for a disk drive.
- HDA
- Head Disk Assembly (disk drive)
- CKD
- Count Key Data (data record format)
- ECKD
- Extended Count Key Data (current data record format)
- VTOC
- Volume Table of Contents
- HLQ
- High-level qualifier, first name used in a dataset name.
- LLQ
- Lowest-level qualifier, last name used in dataset name.
- CICS
- Customer Interaction Control System