Computer Keyboard and its Functions. (for all types of competitive exams, computer exams, HSSC CET exams) Christopher Latham Sholes an American inventor invented the QWERTY keyboard layout in 1868. He designed it for the typewriter. E. Remington and Sons manufactured and sold sholes typewriter. Most common input device used to type text, numbers and […]
Continue ReadingInput and Output Devices in computer (for all types of Competitive Exams in Centre and State) What is an Input Device? An Input Device is a hardware component used to enter data and instructions into a computer. It allows users to interact with the system. Importance of Input Devices: – To help users to communicate […]
Continue ReadingWhat is Computer and its various types Origin of Computer: – The computer comes from Latin word “Computare” which means to calculate. Compute is a Greek word which means to calculate. By adding r in Compute = Computer mean Calculating machine. Meaning of Computer: – Computer is an electronic device that takes data / input […]
Continue ReadingHardware Ports in Computer What is Hardware Port? A Hardware Port is a physical interface or socket on a computer through which external devices are connected to transfer data, audio, video or power. Or A port is connecting point between the computer and external devices like printer, monitor, internet cable keyboard, mouse, etc Main Hardware […]
Continue ReadingGenerations of computer First Generation -Vacuum Tubes Second Generation – Transistors Third Generation – Integrated Circuit Fourth Generation – Very large-scale integration Fifth Generation – Ultra large-scale integration Generations in detail: – First Generations: – Time period – from 1942 -1956 Main electronic device component – Vacuum tube Technology (Vacuum tube was invented by Sir John […]
Continue ReadingHistory of Computer Abacus Abacus is one of the earliest and first calculating devices used for performing arithmetic calculations. Abacus was developed in 2400 B.C. World’s oldest counting Machine. The Roman Abacus was developed from device used in Babylon as early. Napier’s Bones John Napier bones calculating machine was developed by Scottish Mathematician, […]
Continue ReadingImportant Computer Terminology Important computer terminologies explained in simple and easy language for every competitive exam including Basic terms, input output terms, software and OS terms, networking terms, programming terms, advanced terms, hardware and components, data and data base terms, web and internet terms, cybersecurity and ethical hacking, artificial intelligence, data science, cloud, DevOps in […]
Continue ReadingImportant Inventors in Computer Charles Babbage Father of the Computer Designed the Analytical Engine and Difference Engine Ada Lovelace First Computer Programmer Wrote the first algorithm for Babbage’s machine Alan Turing The Father of Modern Computer Science Developed the concept of Turing Machine, Code-breaking in WWII John Atanasoff Invented the Atanasoff-Berry Computer (ABC) First […]
Continue ReadingImportant Timeline in Computer 1822, Charles Babbage → Designed the Difference Engine 1837, Charles Babbage → Designed the Analytical Engine (First mechanical Computer Concept) 1843, Ada Lovelace → Wrote the first computer algorithm 1936, Alan Turing → Proposed the Turing Machine 1939-1942 John Atanasoff & Clifford Berry → Built the ABC Computer 1946, Eckert and […]
Continue ReadingFull Forms in Computer Terminology AI Artificial Intelligence ALU Arithmetic Logic Unit AR Augmented Reality ASCII American Standard Code for Information Interchange API Application Programming Interface APK Android Package Kit BD Blu-ray Disc BIOS Basic Input Output System BMP Bitmap Bpi Bits per inch BISDN Broadband Integrated Services Digital Network BJP Bubblejet Printer BARCODE Binary […]
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