Computing

• Home Computer Initiative
  Home Computer Initiative
  The Home Computing Initiative was a UK Government programme which allowed employers to loan computers to their employees in a tax efficient manner...
  
  , a United Kingdom government programme designed to increase the use of computers in the home
• Host controller interface, a defined and usually standardized interface between a host computer and a USB, Firewire bus adapter
• Host Controller Interface between host computer and Bluetooth controller
• Human–computer interaction
  Human–computer interaction
  Human–computer Interaction is the study, planning, and design of the interaction between people and computers. It is often regarded as the intersection of computer science, behavioral sciences, design and several other fields of study...
  
  , the study of how people interact with computers
  • Human-computer interaction (security)
    Human-computer interaction (security)
    HCISec is the study of interaction between humans and computers, or HCI, specifically as it pertains to information security. Its aim, in plain terms, is to improve the usability of security features in end user applications....
    
    , the study of how people interact with computers concerning information security

Science and technology

• Highly charged ion
  Highly charged ion
  Highly charged ions are ions in very high charge states due to the loss of many or most of their bound electrons by energetic collisions or high-energy photon absorption. Examples are 13-fold ionized iron , found in the Sun's corona, or naked uranium , bare all bound electrons, which requires very...
  
  , an ion in very high charge states due to the loss of many or most of its bound electrons
• Hot carriers injection, a phenomenon in solid-state electronic devices when charge carriers gain enough potential energy to overcome potential barrier(s) and migrate to a different area of the device

Organizations

• Handgun Control, Inc., the former name of the Brady Campaign
  Brady Campaign
  The Brady Campaign to Prevent Gun Violence and the Brady Center to Prevent Gun Violence are affiliated non-profit organizations in the United States. They are named after James Brady who was permanently disabled as a result of an assassination attempt on U.S. President Ronald Reagan in 1981...
  
   to Prevent Gun Violence
• Health Communications, Inc., an American publishing house
• Human Concern International
  Human Concern International
  Human Concern International is a Canadian, federally registered, charitable non-governmental organization working in international development and emergency relief assistance since 1980.From the HCI website:...
  
  , a Canadian organization working in international development and emergency relief assistance since 1980

Schools

• Harbord Collegiate Institute
  Harbord Collegiate Institute
  Harbord Collegiate Institute is a public secondary school located in downtown Toronto, Canada. Specifically, the school is located in the Palmerston-Little Italy/The Annex neighbourhood, situated on the north side of Harbord Street, between Euclid Ave. and Manning St...
  
  , a school in Toronto, Canada
• Humberside Collegiate Institute
  Humberside Collegiate Institute
  Humberside Collegiate Institute is a public high school located in Toronto, Ontario, Canada. It serves the Bloor West Village, High Park North and Junction neighbourhoods. Humberside was established in 1892 and has an academic program for students in grades 9 through 12...
  
  , a school in Toronto, Canada
• Hwa Chong Institution
  Hwa Chong Institution
  Hwa Chong Institution is an independent school in Singapore for students aged 12 to 18 covering both secondary and pre-university levels. A Ministry of Education-designated FutureSchool, it operates under the Special Assistance Plan for bilingualism, and offers the Integrated Programme and also...
  
  , a prestigious school located in Singapore

See also

• Hydrogen chloride
  Hydrogen chloride
  The compound hydrogen chloride has the formula HCl. At room temperature, it is a colorless gas, which forms white fumes of hydrochloric acid upon contact with atmospheric humidity. Hydrogen chloride gas and hydrochloric acid are important in technology and industry...
  
  , whose chemical symbol is HCl (with the last letter being lowercase “L”)
• HCL (disambiguation)