A building is an artificially enclosed space on Earth's land surface that separates completely or partially people and sometimes other animals and plants from Earth's atmosphere and its phenomena. A building is typically enclosed by four walls and a roof. The human art of designing and constructing buildings is known as architecture. The primary function of buildings is to provide shelter for humans and their personal belongings from adverse atmospheric phenomena. A secondary function of buildings is to comfortably provide space for people to sleep, work, play, etc. Buildings come in many shapes and sizes and all of them have the following parts: floors, lower horizontal surfaces for people to walk on; walls, vertical partitions dividing the building into separate spaces or rooms; ceilings, upper horizontal surfaces of rooms; doors, movable rectangular pieces of wood, metal, etc. to provide access to rooms and corridors, and also to serve as entrances and exits to the building itself; windows, rectangular openings with a glass case for permitting natural light and air into the building; artificial lighting for providing illumination when natural light is not possible; and toilet facilities for human excretion and washing. A very tall building in a city, usually an office tower, is called a skyscraper. Multistory buildings have staircases to provide access between floors. They may also have machines for vertical transportation between floors such as elevators and escalators. Buildings are used for a wide variety of human activities and are classified as follows.
1. Residential: houses, apartment complexes, condominiums, igloos, mobile homes and huts
2. Commercial: stores, shopping malls, stock exchanges, banks, office complexes, restaurants, and hotels
3. Industrial: factories, refineries, warehouses, silos, and shipping ports
4. Agricultural: farm houses, barns, and stables
5. Educational: schools, colleges/universities, libraries, and museums
6. Medical/Health: hospitals, clinics, and nursing homes
7. Religious: churches, temples, mosques, and synagogues
8. Recreational: health clubs, spas, gymnasiums, and swimming pools
9. Public Assembly: convention centers, theaters, concert halls, arenas, and stadiums
10. Government: palaces, city halls, police stations, fire stations, courthouses, jails, and prisons
11. Military: barracks, and magazines (places to store ammunition)
12. Transportation: bus stations, train stations, and airports
13. Scientific: laboratories and observatories
Buildings come with different pieces of furniture depending upon the activities being performed in them. Residential buildings usually have beds for sleeping on, couches for relaxing on or engaging in social intercourse, tables for eating, drinking, studying, and working on, and chairs for sitting on when eating, drinking, studying, or working. Buildings for public assembly usually have seats arranged in rows or tiers for people to sit when viewing public events such as sports competitions, concerts, plays, films, speeches, and demonstrations. Recreational buildings have lockers for changing clothes, showers for bathing before or after working out or swimming, and exercise equipment such as treadmills, barbells, dumbbells, and weight machines. Religious buildings have pews for worshipers to sit during services and altars where the clergy perform the ritual. Medical and health buildings have operating tables and X-ray machines.
A squatter is a person who illegally lives in a vacant building or unused land.
A laboratory is a building or room for carrying out scientific research.
A roof is the top covering of a building providing shelter to its inhabitants from inclement or changing weather.
A balcony is typically a platform projecting outward from a multi-story building with a railing or parapet on the edge. It is also an upper tier of seats found indoors at a theater or arena.
Define processes on either end of communication. Define the types of messages. Define the syntax of messages. Define the meaning of any informational fields. Define how the messages are sent and the expected response. Define interaction with the next lower layer.
A mosque is a building where Muslims go to worship.
A factory is a building or a complex of buildings where goods are manufactured.
An inhabited building is any structure, other than an explosives operating building, that is used in whole or in part for human habitation or place of assembly.
A floor is the lower horizontal surface in a building or room that people walk on.
layout tools are tools that are used in carpentry or building works.
A tool is an object used for doing work such as building or repairing things.
The Floor slabs, beams, Columns and Trusses (for the roof).
A squatter is a person who illegally lives in a vacant building or unused land.
A wall is a vertical partition separating rooms in a building and also supporting the roof.
A door is a movable rectangular panel that swings on its hinges and is used as an entrance and exit to a building and to provide access to a room or corridor inside the building.
A laboratory is a building or room for carrying out scientific research.
An office is a room or building for business such as clerical or professional work with furniture such as desks and chairs.