Computer Science Technology IT Notes PDF

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THESE ARE THE MEANING OF THE FOLLOWING ABBREVIATIONS. ___________________________ 1.) GOOGLE - Global Organization Of Oriented Group Language Of Earth. 2.) YAHOO - Yet Another Hierarchical Officious Oracle. 3.) WINDOW - Wide Interactive Network Development for Office work Solution. 4.) COMPUTER - Common Oriented Machine Particularly United and used under Technical and Educational Research. 5.) VIRUS - Vital Information Resources Under Siege. 6.) UMTS - Universal Mobile Telecommunicati ons System. 7.) AMOLED - Active-matrix organic light-emitting diode. 8.) OLED - Organic light-emitting diode. 9.) IMEI - International Mobile Equipment Identity. 10.) ESN - Electronic Serial Number. 11.) UPS - Uninterruptible power supply. 12. HDMI - High-Definition Multimedia Interface. 13.) VPN - Virtual private network. 14.) APN - Access Point Name. 15.) SIM - Subscriber Identity Module. 16.) LED - Light emitting diode. 17.) DLNA - Digital Living Network Alliance. 18.) RAM - Random access memory. 19.) ROM - Read only memory. 20.) VGA - Video Graphics Array. 21.) QVGA - Quarter Video Graphics Array. 22.) WVGA - Wide video graphics array. 23.) WXGA - Widescreen Extended Graphics Array. 24.) USB - Universal serial Bus. 25.) WLAN - Wireless Local Area Network. 26.) PPI - Pixels Per Inch. 27.) LCD - Liquid Crystal Display. 28.) HSDPA - High speed down-link packet access. 29.) HSUPA - High-Speed Uplink Packet Access. 30.) HSPA - High Speed Packet Access. 31.) GPRS - General Packet Radio Service. 32.) EDGE - Enhanced Data Rates for Globa Evolution. 33.) NFC - Near field communication. 34.) OTG - On-the-go. 35.) S-LCD - Super Liquid Crystal Display. 36.) O.S - Operating system. 37.) SNS - Social network service. 38.) H.S - HOTSPOT. 39.) P.O.I - Point of interest. 40.) GPS - Global Positioning System. 41.) DVD - Digital Video Disk. 42.) DTP - Desk top publishing. 43.) DNSE - Digital natural sound engine. 44.) OVI - Ohio Video Intranet. 45.) CDMA - Code Division Multiple Access. 46.) WCDMA - Wide-band Code Division Multiple Access. 47.) GSM - Global System for Mobile Communications. 48.) WI-FI - Wireless Fidelity. 49.) DIVX - Digital internet video access. 50.) APK - Authenticated public key. 51.) J2ME - Java 2 micro edition. 52.) SIS - Installation 53.) DELL - Digital electronic link library. 54.) ACER - Acquisition Collaboration Experimentation Reflection. 55.) RSS - Really simple syndication. 56.) TFT - Thin film 57.) AMR- Adaptive Multi-Rate. 58.) MPEG - moving pictures experts group. 59.) IVRS - Interactive Voice Response System. 60.) HP - Hewlett Packard.

✅ 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)