Appendix Acronyms H

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Acronyms - H

H Height

HACD Home Area Customer Dialing

HAL Heuristically programmed ALgorithmic computer (movie 2001)

HAM Hold And Modify

HAO High Altitude Observatory [Space]

Hb HemogloBin

HBM Her British Majesty; His British Majesty

HBO Home Box Office

HC Holy Communion

HC House of Commons

HCFA Health Care Financing Administration

HCFC hydrochlorofluorocarbon [Chemical]

HCL High Cost of Living

HD Hard Disk

HD Heavy Duty

HD Henry Draper catalog entry [Space]

HDA Head Disk Assembly (in winchester disk drives)

HDBV Host Data Base View

HDL High Density Lipoprotein

HDLC High-level Data Link Control [Networking]

HDTV High Definition Television

HE His Eminence

HE His Excellency

HEAO High Energy Astronomical Observatory [Space]

HEDM High Energy-Density Matter [Space]

HEMP Help End Marijuana Prohibition

HEO High Earth Orbit [Space]

HEPnet High Energy Physics network [Networking]

HERO Hazards of Electromagnetic Radiation to Ordnance

HF High Fantasy

HF High Frequency (3-30MHz)

HFE Human Factors Engineering

HFS Hierarchical File System

HGA High Gain Antenna [Space]

HHS (US Department of) Health and Human Services

HI Hawaii

HIIPS Hud Integrated Information Processing Services

HLC Heavy Lift Capability [Space]

HLL High-Level Language

HLV Heavy Lift Vehicle [Space]

HMC Halley Multicolour Camera (on Giotto) [Space]

HMOS High performance Metal Oxide Semiconductor (see MOS)

HMS His/Her Majesty's Ship

HMT His/Her Majesty's Transport

HNPA Home Numbering Plan Area [Telephony]

HOBIS HOtel Billing Information System

HOL High-Order System

HOTOL HOrizontal Take-Off and Landing

HP Hewlett Packard, Inc. [Corporate name]

HP High Pressure

HP Higher Power (sort of an AA "in" term, usually God)

HP Hit Points

HP HorsePower

HPGe High Purity Germanium

HPL/T High-Productivity Languages/Tools

HQ HeadQuarters

HR Hertzsprung-Russell (diagram) [Space]

HR House of Representatives

HRH Her Royal Highness

HRH His Royal Highness

HRI High Resolution Imager (on ROSAT) [Space]

HS High School

HSB Hue, Saturation, Brightness

HSP High Speed Photometer (on HST) [Space]

HST Hawaiian Standard Time

HST Hubble Space Telescope [Space]

HT High Tension (as in electric power transmission)

HTK Hits To Kill

HUAC House Unamerican Activities Committee

HUD Heads Up Display

HUD Housing and Urban Development [US Government]

HUPD Harvard University Police Department

HUT Hopkins Ultraviolet Telescope (ASTRO package) [Space]

HV High Voltage

HVAC Heating, Ventilation, and Air Conditioning

HW2000 Highway 2000

HWM High-Water Mark

Hz HertZ (unit of frequency, cycles per second)