Sᴄɪᴇηᴄᴇ Aηᴅ Cᴏᴍᴘᴜᴛᴇʀ Nᴏᴛᴇs™ 🎲

Computer 🖥 Dose 🖥 World's first computer - the Analytical Engine developed by Charles Babbage ran on steam not electricity. 🖥 Ada Lovelace, was the world's first computer programmer. 🖥 The first mouse was made from wood by Douglas Engelbart in the 1960s. 🖥 IBM developed the first hard drive (2.52 GB capacity) and it weighed 250kg. It was also the size of a refrigerator. 🖥 Alan Turing is known as the father of computer science. 🖥 The first virus was called the Creeper and emerged in 1971. 🖥 The QWERTY keyboard was invented in 1867 to reduce the speed of typists. 🖥 The first Webcam was invented by students of Cambridge University to monitor their coffee maker. 🖥 A Russian scientist, Vladimir Lukyanov built a computer that ran on water in 1936. 🖥 The first domain name registered was on 15th March, 1985 and was symbolics.com.

🏝 COMPUTER : ONE LINER ⛲️Father of Computer - CHARLES BABBAGE ⛲️Father of Modern Computer Science - ALAN TURING ⛲️First Un Programmable Digital Computer - ATANASOFF BERRY COMPUTER (ABC) ⛲️First Electronic Digital Computer - ENIAC ⛲️ENIVAC stands for - ELECTRONIC NUMERIC INTEGRATOR AND CALCULATOR ⛲️World'S Fastest Computer - Sunway TaihuLight, in China. ⛲️India's Fastest Computer - PARAM SIDDHI AI ⛲️PARAM SIDDHI AI developed by - Centre for Development of Advanced Computing (CDAC) 🏝GENERATIONS OF COMPUTERS ⛲️First Generation - (1940-56) - Vacuum tubes - Batch processing OS ⛲️Second Generation - (1956-63) - Transistors - Multi bag / Time sharing OS ⛲️Third Generation - (1964-71) - Integrated Circuits - Timesharing/ Real time OS ⛲️Fourth Generation - (1971-80) - Microprocessors - Real time/ Multi programming OS ⛲️Fifth Generation - (1980- present) - Semi conductors - Real time/ Multi programming OS 🏝GENERATION LANGUAGE : ☂️1st - Machine and Assembly language ☂️2nd - Assembly language and high level languages (FORTRAN , COBOL) ☂️3rd - High level languages (FORTRAN II - IV , COBOL , PASCAL , BASIC, ALGOL68) ☂️4th - High level languages (FORTAN 77 , PASCAL , COBOL) ☂️5th - High level languages (C , C++ ,JAVA , .NET) #REVISION #IMPORTANT

✍🏻🔺🌐🔷COMPUTER🔷🌐🔺 🔶*The device that can be programmed to carry out a set of arithmetic or logical operations automatically Ans : Computer 🔶*The term 'computer' is originated from the of Ans : Latin 🔶*The term computer is originated from the word Ans : Computerae 🔶*'Computerae' means Ans : To compute or calculate 🔶*The book which used the word 'computer' for the first time Ans : Yong Mans Gleanings 🔶*Yong Mans Gleanings was authored by Ans : Richard Braithwaite 🔶*The invention which is known as the beginning history of computer Ans : Abacus 🔶*Father of computer Ans : Charles Babbage 🔶*Autobiography of Charles Babbage Ans : A passage from the life of a philosopher 🔶*Main features of a computer Ans : Speed, Accuracy, Storage Diligence, Capacity and Versatility 🔶*The digital calculator invented by Blaise language pascal Ans : Pascaline (1642) 🔶*The person who invented Tabulator using punched card Ans : Herman Hollerith 🔶*The company founded by Herman Hollerith Ans : Tabulator Machine Company 🔶*Tabulator Machine Company was later came to be known as Ans : IBM (International Business Machine) 🔶*First computer programmer Ans : Ada Lovelace #IMPORTANT_FOR_COMING_EXAMS🤞🤞

☞ प्रथम विद्युत यांत्रिकीय कंप्यूटर - मार्क-1 First Electromechanical Computer - Mark-1 ☞ प्रथम इलेक्ट्रॉनिक कंप्यूटर - एनियक First Electronic Computer - ENIAC ☞ प्रथम डिजिटल कंप्यूटर - एनियक First Digital Computer - ENIAC ☞ प्रथम वाणिज्यिक उपयोग के लिए बनाया गया कंप्यूटर - यूनीवैक The first computer designed for commercial use - UNIVAC ☞ विश्व का प्रथम माइक्रो कंप्यूटर - अल्टेयर The world's first microcomputer - Altair ☞ भारत का प्रथम माइक्रो कंप्यूटर - सिद्धार्थ India's first microcomputer - Siddhartha ☞ प्रथम माइक्रोप्रोसेसर - इंटेल-4004 (1971) First Microprocessor - Intel-4004 (1971) ☞ भारत का प्रथम माइक्रोप्रोसेसर - शक्ति (2018) India's first microprocessor - Shakti (2018) ☞ विश्व का प्रथम सुपर कंप्यूटर - क्रे-1 (1976) The world's first supercomputer - Cray-1 (1976) ☞ भारत का प्रथम सुपर कंप्यूटर - परम (1991) India's first supercomputer - PARAM (1991) ☞ विश्व का प्रथम मोबाइल - मोटोरोला 8000 TX World's first mobile - Motorola 8000 TX ☞ प्रथम स्मार्टफोन - IBM SIMON (1992) First Smartphone - IBM SIMON (1992) ☞ प्रथम लैपटॉप - इप्सन First Laptop - Epson

☞ राष्ट्रीय सूचना प्रौद्योगिकी दिवस - 11 मई National Information Technology Day - 11 ☞ कंप्यूटर सुरक्षा दिवस - 30 नवंबर Computer Safety Day - 30 November ☞ कंप्यूटर साक्षरता दिवस - 2 दिसंबर Computer Literacy Day - 2 December ☞ कंप्यूटर के पिता - चार्ल्स बैबेज Father of Computer - Charles Babbage ☞ कंप्यूटर की मम्मी - लेडी ऐडा एगेस्टा Mother of Computer - Lady Ada Agusta ☞ कंप्यूटर साइंस के पिता - एलन टयूरिंग Father of Computer Science - Alan Turing ☞ कंप्यूटर के विकास में सर्वाधिक योगदान - डॉ. जॉन वॉन न्यूमैन Most contribution to the development of computer - Dr. John von Neumann ☞ प्रथम कंप्यूटर प्रोग्राम - लवलेश First Computer Program - Lovelace

🌳 PLANT HORMONE 🎍Auxins - Involved in tropisms and apical dominance 🎍Ethylene - Fruit ripening and abscission 🎍Gibberellins - Break the dormancy of seeds and buds; promote growth 🎍Cytokinins - Promote cell division; prevent senescence 🎍ABSCISIC Acid - Close the stomata; maintain dormanc

🔺🔺*Diseases In Fruits Due To Deficiency*🔺🔺 👉1.Dieback in Lemon:-Copper (Cu) 👉2.Little Leaf in Lemon:-Copper (Cu) 👉3.Yellow Spot Disorder in Lemon:-Molybdenum (Mb) 👉4.Internal Necrocin in Annola:-Boron (Bo) 👉5.Little Leaf in Mango & Brinjal:-Zinc (Zn) 👉6.Millerandge Disorder in Grapes:-Boron (Bo) 👉7.Water Core in Banana :-Due to Particles of Ice & Deposition of Sorbitol 👉8.Bronzing in Guava:-Zinc (Zn) 👉9.Scorching (Burning of Leaves) in Mango:-Potassium (K) & Excess of Chloride in Water 👉10.Internal Necrocin in Mangoes:-Boron (Bo) 👉11.Scorching in Litchi:-Potassium (K) 👉12.Black Tip in Mango:-SO2Gas from Kiln 👉13.Bunchy Disease in Peanut :-Zinc (Zn)

COMPLETE PACKAGE OF HISTROY EBOOK WITH PICTURABLE OF EVERY TOPIC AND COLOURFUL BEST ONLY VALUABLE NOTES 👆👆👆👆