kerala psc cyber law related questions and answers.
Information Technology and Cyber Laws : Fundamentals of Computers- Internet Etc Cyber Laws
Hardware and Software
A computer system is made up from hardware and software. ie , tangible.
Hardware is the physical medium, for example:
- circuit boards
- an operating system ( Windows , Linux , Unix etc )
- an editor
- a compiler
- ms word
Computer System Units ( Input , Output and CPU )
Functions of CPU ( ALU and CU )
CPU stands for central processing unit , sometimes it is called the brain of a computer.Two typical components of a CPU are the following:
- The arithmetic logic unit (ALU), which performs arithmetic and logical operations.
- The control unit (CU), which extracts instructions from memory and decodes and executes them, calling on the ALU when necessary.
Input Output Devices
optical mark reader
Bar code reader
Optical Character Reader
Magnetic Ink Character Reader
Input As Well As OutputHard Disk
How Computer Works ? ( POST , BIOS , Booting )ecretariatassistant.com.
Types of Booting ( Cold , Warm , Remote and iBoot )
Role of Memory and its Classification
Memory ( Primary and Secondary , Volatile and Non Volatile )
Various type of Memory and Storage Devices ( RAM , ROM , HDD , FDD , ODD etc)
Need of Formatting
Operating System and its Role .
Basics of Windows , DOS , Linux and Unix
Famous personalities in the history of Computers ( Charles Babbage , John Vohn Neumann , Blaise Pascal , Ada Lovelace , Alan Turing , James Gosling , John Mcarthy )
(26 December 1791 – 18 October 1871) was an English mathematician, philosopher, inventor and mechanical engineer who originated the concept of a programmable computer.Considered a "father of the computer", Babbage is credited with inventing the first mechanical computer. His inventions include Difference Engine and Analytical Engine.
(born 8 June 1955),also known as "TimBL", is a British computer scientist and the inventor of the World Wide Web. He made a proposal for an information management system in March 1989,and on 25 December 1990, with the help of Robert Cailliau and a young student at CERN, he implemented the first successful communication between a Hypertext Transfer Protocol(HTTP) client and server via the Internet.
(10 December 1815 – 27 November 1852), born Augusta Ada Byron and now commonly known as Ada Lovelace, was an English mathematician and writer chiefly known for her work on Charles Babbage's early mechanical general-purpose computer, the analytical engine. Her notes on the engine include what is recognised as the first algorithm intended to be processed by a machine; she sometimes considered the world's first computer programmer.
John Vohn Neumann
(born September 9, 1941; October 12, 2011) was an American computer scientist who "helped shape the digital era.". He created the C programming language and, with long-time colleague Ken Thompson, the Unix .
(born June 23, 1943) is an American computer scientist, who is recognized as one of "the fathers of the Internet",sharing this title with American computer scientist Bob Kahn.
(September 4, 1927 – October 24, 2011) was an American computer scientist and cognitive scientist. He invented the term "artificial intelligence" (AI), developed the Lisp programming language family, significantly influenced the design of the ALGOL programming language. He was considered as the father of Artificial Intelligence.
(born May 19, 1955 near Calgary, Alberta, Canada) is acomputer scientist, best known as the father of the Java programming language.
Douglas Engelbart(born January 30, 1925) is an American inventor, and an early computer and internet pioneer. He is best known for his work on the challenges of human–computer interaction, particularly while at his Augmentation Research Center Lab in SRI International, resulting in the invention of the computer mouse.
Artificial Intelligence , Expert Systems, Mechatronics and Nano Technology
History about Internet ( ARPANET , WWW , GOPHER , Tim Berners Li )
Father of Internet : Vinton Gray "Vint" Cerf
WWW ( World Wide Web )
Browsers , The softwares used for viewing websites. ( Internet Explorer , Google Chrome , Mozilla Firefox , Safari etc )
Browsing & Navigation
Website & Webportals
Search Engines , Online Encyclopedia ( About Google , Yahoo, Bing , wikipedia )
E-Commerce ( Web cart , Non-Repudiation , EFT )
Cyber law and Web security
Definition of Cyber law , Cyber Crime , Cyber Lawyer etc
Cyber crime is unlawful acts wherein the computer is either a tool or a target or both.
We can categorize Cyber crimes in two ways
The Computer as a Target :-using a computer to attack other computers.
e.g. Hacking, Virus/Worm attacks, DOS attack etc.
The computer as a weapon :-using a computer to commit real world crimes.
e.g. Cyber Terrorism, IPR violations, Credit card frauds, EFT frauds, Pornography etc.
Cyber Crime regulated by Cyber Laws or Internet Laws.
Indian IT Act 2000 ( amendments in 2006 and 2008 )
Security Breeches ( Spamming , Spoofing , Phishing , Hacking etc )
Types of Hackers & Ethical hacking
Hacker means someone who finds weaknesses in a computer or computer network, though the term can also refer to someone with an advanced understanding of computers and computer networks.
White Hat Hacker
Black Hat Hackers
Black hat hackers break into secure networks to destroy data or make the network unusable for those who are authorized to use the network.
Grey Hat Hacker
A grey hat hacker is a combination of a Black Hat and a White Hat Hacker.
Cryptography ( Encryption and Decryption Techniques )
Cryptography is the science of secret writing. This word emerged from the greek words 'krupto' means secret and 'graph' means writing.
Encryption is the process of transforming plain text to unreadable scrambled text called cipher text.
Decryption is the reverse process of encryption , ie it converts unreadable cipher text back to plain text.
Need of Protocols like HTTPS and SSL
Hypertext Transfer Protocol Secure (HTTPS) is a widely used communications protocol for secure communication over a computer network.
VIRUS , WORMS & TROJANS
Common Abbreviations in Computer Science
AGP : Accelerated Graphics Port
AVI : Audio Visual Interleaving
BASIC : Beginner's all-purpose symbolic instruction code
BMP : Bit Map
CAD :computer aided design
CASE: computer aided software engineering
CGA: Color Graphics Array
CPU: central processing unit
DBA: database administrator
DBMS :database management system
DCE :Data Communications Equipment
DNS :Domain Name System
DTP: desktop publishing
EBCDIC: extended binary coded decimal interchange code
EDP : electronic data processing
ENIAC: Electronic Numerical integrator And Calculator
FAPI :Fingerprint Aware Application Program Interface
FORTRAN :formula translation
FTP :File Transfer Protocol
GIGO :Garbage In, Garbage Out
GPRS :General Packet Radio Service
GPS: Global Positioning System
GSM :Global Shared Memory / Global System for Mobile
HDD :Hard Disk Drive
HGP: Human Genome Project
HTML :HyperText Markup Language
HTTP :HyperText Transfer Protocol
HTTP-NG :HTTP Next Generation
HTTPS : HyperText Transfer Protocol Secure
secretariat assistant exam objective questions.
Q . Keyboard designed to reduce the risk of wrist and hand injuries.
1) ANSI Keyboard 2) Qwerty Keyboard 3)Ergonomic Keyboard 4) Virtual Keyboard
Q. Eudora is a
1) e-mail client 2) web editor 3) File compression utility 4)Anti Virus
Q. Unsolicited bulk emails received from unknown source are called
1) captcha 2) worms 3) Trojan 4) spam
4.Symbol used to represent ‘decision making ’ in a flowchart
1) Oval 2) Circle 3) parallelogram 4) Rhombus
5.Process of finding useful pattern from a huge database is known as
1) Redundancy 2)Data Mining 3)Data digging 4)Normalization
6. User defined tags are possible using
1) HTML 2)DHTML 3)WML 4)XML
7. Table maintained by operating system to manage disk space used for file storage
1)FAT 2)space table 3)TAT 4)Index table
8. Symbol used to make an absolute reference to column in MS Excel
1)$ 2)@ 3)# 4)&
9. What does pixel means
1)Picture element 2)Storage unit 3)speed factor 4)None of these
1.Spoofing 2.Spamdexing 3.Optimizing 4.Querying
11.The terms SaaS and PaaS related to
1.Data Security 2.MS Office 3.Cloud computing 4.Artificial Intelligence
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