Computer Science Technology IT Notes PDF
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The first functional electronic digital computer is

पहला संक्रियात्मक इलेक्ट्रोनिक अंकीय कंप्यूटर है
Anonymous Quiz
59%
ENIAC
21%
EDVAC
10%
EDSAC
10%
UNIVAC
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The full form of DTP is

DTP का पूरा रूप है
Anonymous Quiz
10%
Daily Text Printing
56%
Desk Top Publishing
27%
Desk Top Printing
7%
Daily Text Publishing
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What is not available in fifth generation computers?

पाँचवी पीढ़ी के कम्प्यूटरों में क्या उपलब्ध नहीं है?
Anonymous Quiz
4%
speech recognition / बोली की पहचान
31%
artificial intelligence / कृत्रिम बौद्धिकता
14%
extreme integration / अत्यधिक एकीकरण
52%
vacuum tube / निर्वात ट्यूब
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What is the full form of ALU?

ALU का पूर्ण रूप क्या है ?
Anonymous Quiz
8%
Alternative Logic Unit
82%
Arithmetic Logic Unit
5%
Arithmetic Least Unit
4%
Arithmetic Local Unit
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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.
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Who among the following is the person who created a new form of information display called World Wide Web?

निम्नलिखित में से वह व्यक्ति कौन सा है, जिसने सूचना प्रदर्शन का नया रूप सृजित किया जिसे World Wide Web कहा जाता है?
Anonymous Quiz
5%
Bob Kahn / बोब कह
71%
Tim Berners-Lee / टिम बरनर्स-ली
23%
Robert Morris Jr. / रॉबर्ट मोरिस जूनियर
2%
Michael DeTouzas / माइकल डेरटूजस
Which of the following is called the 'introductory web page' of an organization?

किसी संगठन के ‘इन्ट्रोडक्टरी वेब पेज’ को निम्नलिखित में से क्या कहा जाता है?
Anonymous Quiz
9%
Portal / पोर्टल
9%
Vortal / वोर्टल
68%
Homepage / होमपेज
13%
Website / वेबसाइट
If a computer does not boot, what is not available in it?

अगर कोई कंप्यूटर बूट नहीं करता है तो उसमे क्या उपलब्ध नहीं है?
Anonymous Quiz
12%
Compiler / कम्पाइलर
21%
Loader / लोडर
64%
Operating System / ऑपरेटिंग सिस्टम
3%
Assembler / असेंबलर
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One kilobit is equal to how many bits?

एक किलोबिट कितने बिट के बराबर होता है?
Anonymous Quiz
3%
512
14%
1000
80%
1024
3%
1042
How is the clock speed of a computer calculated?

कंप्यूटर की घड़ी की स्पीड की गणना किसमें की जाती है ?
Anonymous Quiz
21%
Gigabyte / गीगाबाइट
50%
Bit / बिट
22%
Megabyte / मेगाबाइट
7%
None of these / इनमें से कोई नहीं
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The computer language used on the Internet is ____?

इंटरनेट पर प्रयुक्त कंप्यूटर लैंग्वेज ____ है ?
Anonymous Quiz
53%
Java / जावा
22%
COBOL / कोबोल
20%
BASIC / बेसिक
5%
Pascal / पास्कल
3
What is the microprocessor which is the brain of the computer called?

माइक्रोप्रोसेसर जो कंप्यूटर का मस्तिष्क होता है, उसे इनमे से क्या कहा जाता है ?
Anonymous Quiz
10%
Software / सॉफ्टवेयर
52%
Microchip / माइक्रोचिप
8%
Macrochip / मॅक्रोचिप
31%
All the statements are true / सभी कथन सत्य है
The function of the central processing unit of a computer is _____?

कम्प्यूटर के सेंट्रल प्रोसैसिंग यूनिट का फंक्शन _____ होता है?
Anonymous Quiz
4%
Creating invoice / इनवाइस बनाना
10%
Deleting data / डेटा डिलीट करना
84%
Performing calculations and processing / गणनाएँ और प्रोसैसिंग करना
2%
None of these / इनमें से कोई नहीं
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What controls the movement of signals between the CPU and I/O?

CPU और I/O के बीच सिग्नलों के मूवमेंट को कौन नियंत्रित करता है ?
Anonymous Quiz
56%
Control Unit / कंट्रोल यूनिट
21%
Memory Unit / मेमोरी यूनिट
22%
ALU
1%
None of these / इनमें से कोई नहीं
Which hardware device converts data into meaningful information?

कौन सा हार्डवेयर डिवाइस जो डाटा को अर्थ पूर्ण इनफार्मेशन में परिवर्तित करता है ?
Anonymous Quiz
58%
Processor / प्रोसेसर
26%
Program / प्रोग्राम
5%
Protector / प्रोटेक्टर
11%
Input device / इनपुट डिवाइस
🔆Types of cyber security attack

Malware: It is any kind of software that is designed to cause damage to a single computer, server, or computer network.
Like- Ransomware, Spyware, Worms, viruses & Trojans are all varieties of malware.

Spoofing: Cybercriminals try impersonating a bank’s URL with a website that is quite similar to the original one and has similar functions as well.

Phishing: it is attempting to obtain sensitive information such as credit card details, etc. for fraudulent activities, by disguising oneself as an authentic, trustworthy entity via electronic communication

Denial of Service attacks: It is an attack meant to shut down a machine or network, making it inaccessible to its intended users.

Man-in-the-middle (MitM) attacks: They occur when attackers insert themselves into a two-party transaction.

Structured Query Language (SQL) Injection: SQL stands for a programming language used to communicate with databases.
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🌺 Full Forms of Computer Abbreviations 

☞ ABC : Tans off – Berry computer

☞ A/D : Analog to digital

☞ GP : Graphics port

☞ AI : Artificial intelligence

☞ ALGOL : Algorithmic Language

☞ ALU : Arithmetic Logic Unit

☞ AM : Amplitude Modulation

☞ AMD : Advanced Micro Devices

☞ ANSI : American National standards Institute

☞ ARPNET : Advanced Research Project Agency Network

☞ ASIC : Application specific Integration circuit

☞ ASCII : Americna Standard code for Information Interchange

☞ ATM : Asynchronous Transfer Mode/Automatic Teller Machine

☞ BARC : Bhabha Atomic Research centre

☞ Basic : Beginners‟ All – Purpose symbolic In-suction code

☞ BCD : Binary coded Decimal

☞ BEMA : Business Equipment Manufactures association

☞ BIOS : Basic Input Output system

☞ BCR : Bar code Reader

☞ BPI : Bytes per Inch

☞ BPS : Bits Per Second

☞ BSNL : Bhrat Snchar Nigm Limited

☞ CAD : Computer Aided Design

☞ CAL : Computer Aided Leering

☞ CAM : Computer Aided Manufacturing

☞ CD : Compact Disk

☞ C-DAC : Centre for Development of Advanced computing

☞ C-DOT : Centre for Development of Telemetric

☞ CD-R : Compact Disk-Recordable

☞ CD-ROM : Compact Disk-Read only Memory

☞ CD-R/W : Compact Disk-Read/Write

☞ Class : Computer Literacy and Studies in school

☞ CMOS : Complementary Metal oxide semiconductor

☞ COBOL : Common business oriented Language

☞ CMY : Cyan – Magenta – Yellow

☞ Comal : Common Algorithmic Language

☞ CPI : Character Per Inch

☞ CPS : Central Processing Unit

☞ CRS : Compueriesed Reservation system

☞ CRT : Cathode Ray tube

☞ CTS : Clear to send

☞ CU : Control Unit

☞ D/a : Digital – to – Analog

☞ DBMS : Data Base Management system

☞ DDS : Digital Data Storage

☞ DEC : Digital Equipment Corporation

☞ DOS : Disk Operating system

☞ DPI : Dots per Inch

☞ DRDO : Defense Research and Development Organization

☞ DSHD : Double sided high Density

☞ DTP : Desk op publishing

☞ DTR : Data Terminal Ready

☞ DTS : Digital theater system

☞ DVD : Digital Video/Versatile Disk

☞ E-business : Electronicd business

☞ E-Commerce : Electronic Commerce

☞ E-Mail : Electronic Mail

☞ EBCDIC : Exended binary coded Decimal In terchange Code

☞ EDP : Electronic data processing

☞ EEPROM : Electrically Erasable programmable Read only memory

☞ EFT : Electronic fund Transfer

☞ ENIAC : Electronic Numerical integrator and calculator

☞ EPROM : Erasable programmable Read ony Memory

☞ ERNET : Education and Research Network

☞ EXE : Execution

☞ FAT : file allocation table

☞ FD : Floppy disk

☞ FDM : Frequency division multiplexing

☞ FET : Eifel Effect Transitory

☞ FIFO : First – In, First – out

☞ FILO : First In, Last Out

☞ FM : Frequency Modulation

☞ Fortran : Formula translation

☞ FSK : Frequency shift Keying

☞ FTP : file Transfer Protocol

☞ GB : Giga Bytes

☞ GIGO : Garbage in garbage out

☞ GIS : Geographical information system

☞ GPL : general public license

☞ GPS : Global positioning system

☞ GUI : Graphical user interface

☞ HLL : High Level Language

☞ HP : Hewlett Packard

☞ HTML : Hyper Text Markup Language

☞ HTTP : Hyper Text Tranfer Protocol

☞ IBM : International business Machines

☞ IC : Integrated Circuit

☞ I/O : Input – Output

☞ IP : Internet Protocol

☞ IRC : Internet Relay chat

☞ ISDN : Integrated services digital Network

☞ ISH : Information super highway

☞ ISO : International standards Organization

☞ ISP : Internet service provider

☞ IT : Information technology

☞ JPEG : Joint Photographic expert group

☞ JRE : Jav Runtime Engine

☞ JSP : Java Server pages

☞ KB : Kilo bytes

☞ KIPS : Knowledge information processing system

☞ LAN : Local Area Network

☞ Laser : Light amplification for stimulated emission of radiation

☞ LCD : Liquid crystal display

☞ LD : Laser diode

☞ LEd : Light – Emitting diode

☞ LISP : Lit processing

☞ LLL : Low Level language

☞ LSD : Least significant digit

☞ LSI : Least significant digit

☞ LSI : Large scale integration

☞ MAN : Metropolitan Area Network

☞ MB : Mega Bytes

☞ MHz : Mega Hertz

☞ MICR : Magnetic Ink character recognition
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