- AFP: Apple Filing Protocol
- AHCI: Advanced Host Controller Interface
- APM: Apple Partition Map
- APT: advanced packaging tool
- ATA: Advanced Technology Attachment (SATA)
- ATAPI: AT Attachment Packet Interface
- BCIT: Barnard College IT
- CAPS: Purchasing System
- COS: Class of Service
- CRED: Center for Research on Environmental Decisions
- CUIT: Columbia University IT
- DDR: Double Data Rate – DDR3/DDR4 chips
- DF: disk-free space
- DHCP: Dynamic Host Configuration Protocol
- DN: distinguished name
- DRAM: Dynamic Random-Access Memory
- DSCL: Directory Service Command Line Utility (Mac)
- DVI: Digital Video Interface
- ECC: Error-Correcting Code (Used in ECC Memory)
- FAS: Financial Accounting System
- FFE : Financial Front End
- GAL: Global Address List
- GPT: GUID Partition Table – Mac-formatted hard drive partitions
- GREP: globally search a regular expression and print
- HPC: High-Performance Computing
- HSM: hierarchical storage management
- IOPS: Input/output Operatives Per Second
- IPS: In-Plane Switching (LCD monitor)
- IRB: Institutional Review Board – Encrypt data for human subjects
- ISO: International Standards Organization
- JBOD: Just a Bunch Of Drives/Disks – Non-RAID drive architecture
- LDS: Labor Distribution System
- LIRSM: Laboratory of Intergroup Relations and the Social Mind
- LMTP: Load Mail Transport Protocol
- LRV: least recently used (cache algorithm)
- LTS: Long-Term Support
- LVM: Linux Volume management
- LVM: Logical Volume Manager
- MAID: Massive Array of Idle Drives (100-1000 hard drives for nearline storage)
- MD: mirror device
- MOTD: Message of the Day
- MTA: message transfer agent
- NAS: Network-attached storage
- PAC: People at Columbia
- PBIS: Power Broker Identity System – Linux use of Active Directory
- PBIS : PowerBroker Identity Services
- PLL: Phase Locked Loop
- POE: Power Over Ethernet
- PPN: processors per node
- PSREF: Product Specifications Reference
- RA: Research Assistant
- RAID: Redundant Array of Inexpensive/Independent Disks
- RBL: Real-time Black-hole Lists
- RCS: Research Computing Services
- RDIMM: Registered DIMM (register used to buffer address, control lines and clocks)
- RMA: Return Merchandise Authorization
- SAN: Storage Area Network
- SAS: Serial Attached SCSI (point-to-point serial protocol)
- SATA: Serial ATA
- SCN: Social Cognitive Neuroscience – aka Scan Lab
- SCP: Secure Copy (WinSCP or Fugu)
- SCSI = Small Computer System Interface
- SMB – Windows Filesharing
- SOAP: Simple Object Access Protocol
- SS: Secure Shell
- SSD: Solid-State Drive
- TN: Twisted Nematic Field (LCD monitor)
- TTY:Teletype (controlling terminal)
- UDF: Universal Disk Format
- UDIMM: Unregistered DIMM – slightly faster (2+), but no parity.
- UNI: UNiversity ID
- WORM: Write Once, Read Many (archival storage)
- WORO: Write Once, Read Occasionally
- WWN: world-wide number. Given to hard drives; used for absolute identification.
- ZCS: Zimbra Collaborative Services
- ZFS: Zettabye Storage System
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