Subassembly of computer. Problems of unemployment of young people

Mathematics[edit]

In mathematics, Ulugh Beg wrote accurate trigonometric tables of sine and tangent values correct to at least eight decimal places.^[15]

War of succession and death[edit]

Ulugh Beg's headstone at the foot of Timur's in the Gur-e-Amir


In 1447, upon learning of the death of his father Shah Rukh, Ulugh Beg went to Balkh. Here, he heard that Ala al-Dawla, the son of his late brother Baysunghur, had claimed the rulership of the Timurid Empire in Herat. Consequently, Ulugh Beg marched against Ala al-Dawla and met him in battle at Murghab. He defeated his nephew and advanced toward Herat, massacring its people in 1448. However, Abul-Qasim Babur Mirza, Ala al-Dawla's brother, came to the latter's aid and defeated Ulugh Beg.^[12]
Ulugh Beg retreated to Balkh where he found that its governor, his oldest son Abdal-Latif Mirza, had rebelled against him. Another civil war ensued.^[12] Abdal-Latif recruited troops to meet his father's army on the banks of the Amu Darya river. However, Ulugh Beg was forced to retreat to Samarkand before any fighting took place, having heard news of turmoil in the city. Abdal-Latif soon reached Samarkand and Ulugh Beg involuntarily surrendered to his son. Abd-al-Latif released his father from custody, allowing him to make pilgrimage to Mecca. However, he ensured Ulugh Beg never reached his destination, having him, as well as his brother Abdal-Aziz assassinated in 1449.^[16][17][18]
Eventually, Ulugh Beg's reputation was rehabilitated by his nephew, Abdallah Mirza (1450–1451), who placed his remains at Timur's feet in the Gur-e-Amir in Samarkand,^[19] where they were found by Soviet archaeologists in 1941.

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  Aka Begi Begum, daughter of Muhammad Sultan Mirza bin Jahangir Mirza and Khan Sultan Khanika, mother of Habiba Sultan known as Khanzada Begum and another Khanzada Begum;
  
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  Sultan Badi al-mulk Begum, daughter of Khalil Sultan bin Miran Shah and Shad Malik Agha;
  
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  Aqi Sultan Khanika, daughter of Sultan Mahmud Khan Ogeday;
  
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  Husn Nigar Khanika, daughter of Shams-i-Jahan Khan Chaghatay;
  
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  Shukur Bi Khanika, daughter of Darwish Khan Jochi;
  
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  Rukaiya Sultan Agha, an Arlat lady, and mother of Abdal-Latif Mirza, Ak Bash Begum and Sultan Bakht Begum;
  
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  Mihr Sultan Agha, daughter of Tukal bin Sarbuka;
  
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  Sa'adat Bakht Agha, daughter of Bayan Kukaltash, mother of Qutlugh Turkhan Agha;
  
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  Daulat Sultan Agha, daughter of Khawand Sa'id;
  
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  Bakhti Bi Agha, daughter of Aka Sufi Uzbek;
  
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  Daulat Bakht Agha, daughter of Sheikh Muhammad Barlas;
  
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  Sultanim Agha, mother of Abdul Hamid Mirza and Abdul Jabrar Mirza;
  
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  Sultan Malik Agha, daughter of Nasir-al-Din, mother of Ubaydullah Mirza, Abdullah Mirza and another Abdullah Mirza;
  

The Ulugh Beigh crater on the moon, named for Ulugh Beg.^[20]

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  The crater, Ulugh Beigh, on the Moon, was named after him by the German astronomer Johann Heinrich von Mädler on his 1830 map of the Moon.
  
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  2439 Ulugbek, a main-belt asteroid which was discovered on 21 August 1977 by N. Chernykh at Nauchnyj, was named after him.
  
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  Subassembly or pcb mounting slides andretaining hardwareSubassembly or pcb electrical connectorreceptacles and interconnecting wiring harnessPrinted circuit boardsExternal connections for data and power cablesAn operator’s control or maintenance panelPower supply unitBlower unitAir filterIn a cage or rack arrangement, only the functionalareas of the computer are contained in the cage or rack.The cage or rack contains pcb’s that only house themajor functional areas, such as CPU, memory, and I/O.Sometimes more than one functional area will becontained on a pcb. The pcb’s slide into slots inside thecage or rack.The connector receptacles for eachsubassembly or pcb are usually located at the rear of thecage or rack. The pcb’s are not always keyed, so youmust exercise care when installing them. The pcb’s aresecured in each slot by retaining hardware. The cage orrack is generally fixed and cannot be extended as awhole unit. The pcb’s can usually be accessed withpower on, but power must be secured when you removeand replace a pcb.The pcb’s can be extendedindividually for maintenance.The other main parts of the computer, such as thepower supply unit and cooling unit, are located in adifferent part of the frame or cabinet, not in the cage orrack with the pcb’s. Figure 2-12 is an illustration of acage or rack setup.