HAL -Hardware Abstraction Layer
HDD -Hard Disk Drive
HDMI -High Definition Multimedia Interface
HTML -HyperText Markup Language
HTTP -HyperText Transfer Protocol
HTTPS -HyperText Transfer Protocol Secure
HLL -High-Level Language
HMI -Human Machine Interface
HP -Hewlett-Packard
HPC -High-Performance Computing
HPFS -High-Performance File System
HP-UX -Hewlett-Packard Unix
HRT -High Resolution Timer
HSDPA -High-Speed Downlink Packet Access
HSPA -High-Speed Packet Access
HSRP -Hot Standby Router Protocol
HSTS -HTTP Strict Transport Security
HTML5 -HyperText Markup Language Version 5
HVD -Holographic Versatile Disc
HZ -Hertz
HDDVD -High Definition Digital Versatile Disc
HPUX -Hewlett-Packard Unix
HSD -High-Speed Data
HSF -Heat Sink And Fan
HSPDA -High-Speed Packet Data Access
HSPA+ -Evolved High-Speed Packet Access
HSS -Home Subscriber Server
HT -Hyper-Threading
HTPC -Home Theater Personal Computer
HTML DOM -HyperText Markup Language Document Object Model
HTTP/2 -HyperText Transfer Protocol Version 2
HVAC -Heating, Ventilation, And Air Conditioning
HWSW -Hardware And Software
HLR -Home Location Register
HMAC -Hash-Based Message Authentication Code
HCI -Human-Computer Interaction
HDDVD-R -High Definition Digital Versatile Disc Recordable
HEVC -High Efficiency Video Coding
HBA -Host Bus Adapter
HDFS -Hadoop Distributed File System
HQL -Hibernate Query Language
HSR -High-Speed Router
HSM -Hierarchical Storage Management
HTTP3 -HyperText Transfer Protocol Version 3
HVD-ROM -Holographic Versatile Disc Read-Only Memory