Computer Science Technology IT Notes PDF

✅ QUICK FACT COMPUTER : ONE LINER 1. Father of Computer - CHARLES BABBAGE 2. Father of Modern Computer Science - ALAN TURING 3. First Un Programmable Digital Computer - ATANASOFF BERRY COMPUTER (ABC) 4. First Electronic Digital Computer - ENIAC 5. ENIVAC stands for - ELECTRONIC NUMERIC INTEGRATOR AND CALCULATOR 6. World'S Fastest Computer - Sunway TaihuLight, in China. 7. India's Fastest Computer - PARAM SIDDHI AI 8. PARAM SIDDHI AI developed by - Centre for Development of Advanced Computing (CDAC) 💻 GENERATIONS OF COMPUTERS : 1. First Generation - (1940-56) - Vacuum tubes - Batch processing OS 2. Second Generation - (1956-63) - Transistors - Multi bag / Time sharing OS 3. Third Generation - (1964-71) - Integrated Circuits - Timesharing/ Real time OS 4. Fourth Generation - (1971-80) - Microprocessors - Real time/ Multi programming OS 5. 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)

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🖥 COMPUTER GLOSSARY 🚧 BANDWIDTH ➭ The maximum amount of data that can travel in a communication path in a given time, measured in bits per second (bps). 🚧 BAR CODE ➭ It is a machine-readable representation of information in a visual format on a surface. 🚧 BATCH FILE ➭ It is a text file that contains a sequence of commands for a computer operating system. 🚧 BINARY CODED DECIMAL (BCD) ➭ A coding system in which a 4 digit binary number represents each decimal digit from 0 to 9. ▰▱▰▱▰▱▰▱▰▱▰▱▰▱ ➜ Jᴏɪɴ➾ @Computer_Quiz_Notes ▰▱▰▱▰▱▰▱▰▱▰▱▰▰

🖥 COMPUTER GLOSSARY 🚧 AUTHENTICATION ➭ Any process by which a system varifies the identity of the user who wants to access it. 🚧 AUXILIARY MEMORY ➭ It is also known as secondary memory that is not directly addressable by the CPU. 🚧 BACKSPACE KEY ➭ This key is used to delete the text. Backspace will delete the text to the left of the cursor. 🚧 BACKUP ➭ A copy of a file or other item of data made in case the original is lost and damaged. ▰▱▰▱▰▱▰▱▰▱▰▱▰▱ ➜ Jᴏɪɴ➾ @Computer_Quiz_Notes ▰▱▰▱▰▱▰▱▰▱▰▱▰▰

🖥 COMPUTER GLOSSARY 🚧 ARTIFICIAL INTELLIGENCE ➭ Fifth generation computing devices, based on artificial intelligence, are still in development, though there are some applications, such as voice recognition, that are being used today. 🚧 ASCII ➭ ( American Standard Code for Information Interchange) It is a character set and a character encoding based on the Roman alphabet as used in Modern English and other Western European Languages. 🚧 ASSEMBLER ➭ A program that translates mnemonic statement into executive instruction. 🚧 ATTRIBUTE ➭ The characteristics of an entity are called its attributes. ▰▱▰▱▰▱▰▱▰▱▰▱▰▱ ➜ Jᴏɪɴ➾ @Computer_Quiz_Notes ▰▱▰▱▰▱▰▱▰▱▰▱▰▰

🖥 COMPUTER GLOSSARY 🚧 ANTI-VIRUS ➭ It consist of computer programs that attempt to identify threat and eliminate computer viruses and other malicious software (Malware). 🚧 APPLICATION SOFTWARE ➭ It is a subclass of computer software that employs the capabilities of a computer directly to a task that the user wishes to perform. 🚧 ARCHIVE ➭ It provides backup storage. 🚧 ARITHMETIC LOGIC UNIT (ALU) ➭ Is is a part of the execution unit, a core component of all CPUs. ALUs are capable of calculating the results of a wide variety of basic arithmetical and logical computations. ▰▱▰▱▰▱▰▱▰▱▰▱▰▱ ➜ Jᴏɪɴ➾ @Computer_Quiz_Notes ▰▱▰▱▰▱▰▱▰▱▰▱▰▰

🗄 TYPES OF ATM ( Automated Teller Machine ) 🖨 White Label ATMs (WLAs): ATMs set up, owned and operated by non-banks (i.e NBFCs) are WLAs. Non-bank ATM operators are authorised under the Payment & Settlement Systems Act, 2007 by RBI. 🖨 Green Label ATMs – ATMs for agricultural transactions. 🖨 Orange label ATMs – ATMs used for share transactions. 🖨 Pink Label ATMs – ATMs that are meant only for women (ease their banking). 🖨 Yellow Label ATMs – ATMs meant for E-commerce facility. 🖨 Brown Label ATMs – ATMs that are outsourced by a bank to a third party (based on the concept of sharing the cost). 🖨 Biometric ATMs – These are ATMs that use security features like fingerprint scanner and eye scanner of the customer to access the bank details. 🖨 Onsite ATMs – ATMs that are located inside the bank’s premises. 🖨 Offsite ATMs- ATMs that are located in various places except inside the bank’s premises.

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