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Very-large-scale integration (VLSI) is the process of creating an integrated circuit (IC) by combining thousands of transistors into a single chip. VLSI began in the 1970s when complex semiconductor and communication technologies were being developed. The microprocessor is a VLSI device. Before the introduction of VLSI technology most ICs had a limited set of functions they could perform. An electronic circuit might consist of a CPU, ROM, RAM and other glue logic. VLSI lets IC designers add all of these into one chip. History The History of the transistor dates to the mid-1920s when several inventors attempted devices that were intended to control current in solid-state diodes and convert them into triodes. Success came after World War II, when the use of silicon and germanium crystals as radar detectors led to improvements in fabrication and theory. Scientists who had been diverted to radar development returned to solid-state device development. With the invention of transistors...

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हमारे युवा सुबह उठकर *कोलगेट* से ब्रश करते हैं *जिलेट* से दाढ़ी बनाते हैं *ओल्ड स्पाइस* का आप्टरशेव लगाते हैं *पियर्स* से नहाते हैं अंतःवस्त्र *जोकी* के पहनते हैं *वान हुसैन* की कमीज पहनते हैं पैंट *ली वाइस* की पहनते हैं नाश्ते में *ओट्स* या *मैगी* खाते हैं साथ में *नेसकैफे* या *स्टारबक्स* की कोफी पीते हैं मोबाइल *सैमसंग* या *एपल* का रखते हैं चश्मा *रेबेन* का लगाते हैं समय *राडो* या *कैशियो* की घड़ी में देखते हैं किसी *बहुराष्ट्रीय कंपनी* में नौकरी करते हैं *टोयोटा* की कार या *होंडा* की मोटरसाइकिल से चलते हैं *एपल* या *लेनोवो* का लैपटाप प्रयोग करते हैं *मैक्डोनाल्ड* में लंच करते हैं दिन भर *कोक* और *पेप्सी* पीते हैं शाम को घर आते हुए पत्नी व बच्चों के लिए *केएफसी* का बर्गर या  *पिज्जा हट* से पिज्जा लेकर आते हैं और शाम को *ब्लैक लेबल* की चुस्की लेते हुए आपस में चर्चा करते हैं कि *यार ये रूपया डॉलर के मुकाबले इतना गिर क्यों रहा है* थोड़ा सोचिएगा<script async src="//pagead2.googlesyndication.com/pagead/js/adsbygoogle.js"></script> <script...

Visa holders from seven majority-Muslim countries who were turned away from the United States due to President Donald Trump’s travel ban are hoping to make it through a narrow window opened by legal challenges. The federal appeals court in San Francisco denied Mr. Trump’s effort to immediately reinstate the ban early on Sunday. For now, it remains blocked by a judge’s temporary restraining order, and federal officials have told their staff to comply. Advocates weren’t taking any chances, telling people who could travel to get on the earliest flights they could find after the week-old ban was blocked Friday by U.S. District Judge James Robart in Seattle. “We’re telling them to get on the quickest flight ASAP,” said Rula Aoun, director of the Arab American Civil Rights League in Dearborn, Michigan. Her group sued in federal court in Detroit, challenging Mr. Trump’s executive order as unconstitutional. Protesters sought to keep up the pressure, gathering in Denver and other U.S....

The  Nehru–Indira Gandhi family  is a prominent Indian political dynasty, which primarily consisted of Jawaharlal Nehru, Indira Gandhi and her descendants. Their political involvement has traditionally revolved around the Indian National Congress. Members of the family have traditionally led the Congress party and the Republic of India since independence. The Guardian  wrote in 2007 "The Nehru Gandhi brand has no peer in the world — a member of the family has been in charge of India for 40 of the 60 years since independence. The allure of India's first family blends the right to rule of British monarchy with the tragic glamour of America's Kennedy clan." The Gandhi surname came from Feroze Jehangir Ghandy, who was not related to Mahatma Gandhi. Indira Priyadarshini Nehru (the daughter of Jawaharlal Nehru) married Feroze Gandhi in 1942 and adopted his surname. Earliest record Raj Kaul...

History of Megger The device is being used since 1889, popularity raised during 1920s, since long back devise is same in its uses and purpose of testing, few real improvement appeared in recent years with its design and quality of tester. Now high quality option are available which are easy to use and quite safe. What is Megger? Insulation resistance quality of an electrical system degrades with time, environment condition i.e. temperature, humidity, moisture and dust particles. It also get impacted negatively due to the presence of electrical and mechanical stress, so it’s become very necessary to check the IR (Insulation resistance) of equipment at a constant regular interval to avoid any measure fatal or electrical shock. Uses of Megger The device enable us to measure electrical leakage in wire, results are very reliable as we shall be passing electric current through device while we are testing. The equipment basically use for verifying the electrical insulatio...

The Cathode Ray Oscilloscope is an instrument which we use in laboratory to display measure and analyze various waveforms of various electrical and electronic circuit. Working Principle: CRO used Lissajous pattern to Display Traces on oscilloscope Scree n . Actually cathode ray oscilloscope is very fast X-Y plotters that can display an input signal versus time or other signal. Cathode ray oscilloscope uses luminous spot which is produced by striking the beam of electrons and this luminous spot moves in response variation in the input quantity. At this moment one question must be arise in our mind that why we are using only an electron beam? The reason behind this is low effects of beam of electrons that can be used for following the changes in the instantaneous values of rapidly changing input quantity. The general forms of cathode ray oscilloscope operate on voltages. So the input quantity that we have talked above is voltage. Nowadays, with the help of transducers. it is pos...

Electronics  is the  science  of controlling  electrical energy  electrically, in which the  electrons  have a fundamental role  Electronics is the science of controlling electrical energy electrically, in which the electrons have a fundamental role. Electronics deals with electrical circuits that involve active electrical components such as vacuum tubes, transistors, diodes, integrated circuits, associated passive electrical components, and interconnection technologies. Commonly, electronic devices contain circuitry consisting primarily or exclusively of active semiconductors supplemented with passive elements; such a circuit is described as an electronic circuit. The science of electronics is also considered to be a branch of physics and electrical engineering. The nonlinear behaviour of active components and their ability to control electron flows makes amplification of weak signals possible, and electronics is widely used in information ...