List of Computing and IT Abbreviations - H

H

• HAL—Hardware Abstraction Layer
• HBA—Host Bus Adapter
• HCI—Human Computer Interaction
• HD—High Density
• HDD—Hard Disk Drive
• HCL—Hardware Compatibility List
• HD DVD—High Definition DVD
• HDL—Hardware Description Language
• HDMI—High-Definition Multimedia Interface
• HF—High Frequency
• HHD—Hybrid Hard Drive
• HID—Human Interface Device
• HIG—Human Interface Guidelines
• HIRD—Hurd of Interfaces Representing Depth
• HLASM—High Level ASseMbler
• HMA—High Memory Area
• HP—Hewlett-Packard
• HPC—High-Performance Computing
• HPFS—High Performance File System
• HTC—High-Throughput Computing
• HSM—Hierarchical Storage Management
• HT—Hyper Threading
• HTM—Hierarchical Temporal Memory
• HTML—Hypertext Markup Language
• HTTP—Hypertext Transfer Protocol
• HTTPd—Hypertext Transport Protocol Daemon
• HTX—HyperTransport eXpansion
• HURD—Hird of Unix-Replacing Daemons
• HVD—Holographic Versatile Disc
• Hz—Hertz