Acronym

Description

H0

384-kbps channel

H11

1.544-Mbps Channel

HANDS

Healthcare Application Network Delivery System

HANS

Hardware Answer Indicator

HARI

Homegrown Accounts Receivable Interim

HAS

Hand-held Access System

HASP

Houston Automatic Spooling Program

HASP/MLI

Houston Automatic Spooling Program/Multi-Leaving Interface

HATS

Hacker Attempt Tracking System

HB

Honeywell-Bull

HCDS

High Capacity Digital Services

HCLS

High Capacity Lightwave Service

HCMR

High Capacity Minirecorder

HCMTS

High Capacity Mobile Telecommunications System

HCS

Hundred Call Seconds

HD

High Day

HD (HDX)

Half Duplex

HDAM

Hierarchical Direct Access Method

HDB

High Density Bipolar

HDBH

High Day Busy Hour

HDBH

High Day Busy Hour

HDBK

Handbook

HDFI

Host Digital Facilities Interface

HDL

Hardware Description Language

HDLC

High-level Data Link Control

HDLC

Honeywell Data Link Control

HDLTU

Host Digital Line Trunk Unit

HDX

Half-Duplex

HEHO

High End Hop Off

HEP

Heterogeneous Element Processor

HEPS

High End Proposal System (CN)

HF

High Frequency (3 to 30 MHz)

HFDF

High Frequency Distribution Frame

HHS

Department of Health and Human Services

HIC

Hybrid Integrated Circuit

HIOS

Headquarters Integrated Office System

HIPAC

Hitachi Parametron Automatic Computer

HIPO

Hierarchy plus Input-Process-Output

HIPPI

High Performance Parallel Interface

HIS

Hospital Information System

HLL

High-Level Language

HLSC

High-Level Service Circuit

HM

Human/Machine

HMG

Hospitality Market Group (S)

HN

Host of Network

HNPA

Home Numbering Plan Area

HOBIC

Hotel Billing Information Center

HOBIC

Hotel Billing Information Center

HOBIS

Hotel Billing Information System

HOBIS

Hotel Billing Information System

HOC

Host Collector

HOPL

History of Programming Languages

HP

Hewlett-Packard

HPAD

High-Level Data Link Control Packet Assembler/Disassembler

HPCC

High Performance Computing and Communications

HR

Human Resources

HRC

Horizontal Redundancy Checking

HRD

Human Resources Department

HRIS

Human Resource Information System (HR)

HRRS

Human Resources Reporting System (HR)

HRSA

Health Resources and Services Administration

HSDU

High Speed Data Unit

HSLPU

High Speed Line Processing Unit

HSM

Host Switching Module

HSSI

High Speed Serial Interface

HT

Holding Time

HTR

Hard-to-reach (points or codes)

HTRF

Hard To Reach Flag

HTRF

Hard To Reach Flag (Northern Telecom Inc. DMS-200)

HUD

Department of Housing and Urban Development

HV

High Voltage

HVAC

Heating, Ventilating, and Air Conditioning

Hz

Hertz (cycles per second)