In computing, an address space defines a range of discrete addresses, each of which may correspond to a network host, peripheral device, disk sector, a memory cell or other logical or physical entity.

Address spaces are created by combining enough uniquely identified qualifiers to make an address unambiguous (within a particular address space). For a person's physical address, the address space would be a combination of locations, such as a neighborhood, town, city, or country. Components^{[clarification needed]} of an address space may be the same but unless all are identical, the locations will be different. An example could be that there are multiple buildings at the same address of "32 Main Street" but in different towns demonstrates that different towns have different, although similarly arranged, street address spaces.

An address space usually provides (or allows) a partitioning to several regions according to mathematical structure it has. In the case of total order, as for memory addresses, these are simply chunks. Some nested domains hierarchy appears in the case of directed ordered tree as for the Domain Name System or a directory structure; this similar to hierarchical design of postal addresses. In the Internet, for example, the Internet Assigned Numbers Authority (IANA) allocates ranges of IP addresses to various registries in order to enable them to each manage their parts of the global Internet address space.

Narendra Damodardas Modi (Gujarati: નરેન્દ્ર મોદી; born 17 September 1950) is the current Chief Minister of the Indian state of Gujarat. Born in a middle class family in Vadnagar, he was the third of six children born to Damodardas Mulchand Modi and his wife Heeraben. He has been a member of the Rashtriya Swayamsevak Sangh (RSS) since childhood also having interest in politics since adolescence. He holds a master's degree in political science. In 1998, he was chosen by L. K. Advani, the leader of the Bharatiya Janata Party (BJP), to direct the election campaign in Gujarat as well as Himachal Pradesh.

He became Chief Minister of Gujarat in October 2001, promoted to the office at a time when his predecessor Keshubhai Patel had resigned, following the defeat of BJP in the by-elections. His tenure as chief minister of Gujarat began on 7 October 2001, and he is the longest serving Chief Minister of the state of Gujarat. In July 2007 he became the longest serving Chief Minister in Gujarat's history when he had been in power for 2063 days continuously. He was elected again for a third term on 23 December 2007 in the state elections, which he had cast as a "referendum on his rule".

Rahul Gandhi ([ˈraːɦʊl ˈɡaːnd̪ʱiː]; born 19 June 1970) is an Indian politician and member of the Parliament of India, representing the Amethi constituency. Gandhi is the general-secretary of the Indian National Congress. He is the grandson of Feroze Gandhi and Indira (née Nehru) Gandhi, and fourth-generation scion of the Nehru-Gandhi family.

Rahul Gandhi was born in Delhi on 19 June 1970 as the first of the two children of Rajiv Gandhi, who later became the Prime Minister of India and Sonia Gandhi, who later became President of Indian National Congress, and as the grandson of the then Prime Minister Indira Gandhi. He is also the great-grandson of India's first Prime Minister, Jawaharlal Nehru. Priyanka Vadra is his younger sister.

Rahul Gandhi attended St. Columba's School, Delhi before entering The Doon School in Dehradun (Uttarakhand), also his father's alma mater, from 1981–83. Meanwhile, his father had joined politics and became the Prime Minister on October 31, 1984 when Indira Gandhi was assassinated. Due to the security threats faced by Indira Gandhi's family from Sikh extremists, Rahul Gandhi and his sister, Priyanka were home-schooled since then. Rahul Gandhi joined St. Stephen's College, Delhi in 1989 for his undergraduate education but moved to Harvard University after he completed the first year examinations. In 1991, after Rajiv Gandhi was assassinated by LTTE during an election rally, he shifted to Rollins College due to security concerns and completed his B.A. in 1994. During this period, he assumed the pseudonym Raul Vinci and his identity was known only to the university officials and security agencies. He further went on to obtain a M.Phil from Trinity College, Cambridge University in 1995. After graduation, Rahul Gandhi worked at the Monitor Group, a management consulting firm, in London. In 2002 he was one of the directors of Mumbai-based technology outsourcing firm Backops Services Private Ltd.

Arvind Kumar Kejriwal (born 16 June 1968) is a retired Indian Revenue Service officer and an Indian social activist fighting for greater transparency in Government. He was awarded Ramon Magsaysay Award for Emergent Leadership in 2006, for activating India's Right to Information movement at grassroots and social activities to empower the poorest citizens to fight corruption by holding the government answerable to the people. Kejriwal is also a Saathi (fellow) of the Association for India's Development, a Global Impact award winning NGO.

Arvind Kejriwal was born in a Marwari family in Hissar, Haryana in 1968. His father was an engineer and he spent most of his childhood living in small northern Indian towns like Sonepat, Mathura and Hissar. He did his schooling from Campus School. Kejriwal graduated from IIT Kharagpur as a Mechanical engineer in 1989.

Kejriwal joined Tata Steel right after his graduation from IIT Kharagpur. Kejriwal quit his job with Tata Steel in 1992^{[citation needed]} and spent some time working with Mother Teresa's Missionaries of Charity in Kolkata, the Ramakrishna Mission in the North-East India and Nehru Yuva Kendra.