SEO - What is SEO?

SEO - What is SEO?

Unknown 16:53 Add Comment

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SEO - What is SEO?


SEO stands for Search Engine Optimization. SEO is all about optimizing a website for search engines. SEO is a technique for:
  • designing and developing a website to rank well in search engine results.
  • improving the volume and quality of traffic to a website from search engines.
  • marketing by understanding how search algorithms work, and what human visitors might search.
SEO is a subset of search engine marketing. SEO is also referred as SEO copyrighting, because most of the techniques that are used to promote sites in search engines, deal with text.
If you plan to do some basic SEO, it is essential that you understand how search engines work.

How Search Engine Works?

Search engines perform several activities in order to deliver search results.
  • Crawling - Process of fetching all the web pages linked to a website. This task is performed by a software, called a crawler or a spider (or Googlebot, in case of Google).
  • Indexing - Process of creating index for all the fetched web pages and keeping them into a giant database from where it can later be retrieved. Essentially, the process of indexing is identifying the words and expressions that best describe the page and assigning the page to particular keywords.
  • Processing - When a search request comes, the search engine processes it, i.e. it compares the search string in the search request with the indexed pages in the database.
  • Calculating Relevancy - It is likely that more than one page contains the search string, so the search engine starts calculating the relevancy of each of the pages in its index to the search string.
  • Retrieving Results - The last step in search engine activities is retrieving the best matched results. Basically, it is nothing more than simply displaying them in the browser.
Search engines such as Google and Yahoo! often update their relevancy algorithm dozens of times per month. When you see changes in your rankings it is due to an algorithmic shift or something else outside of your control.
Although the basic principle of operation of all search engines is the same, the minor differences between their relevancy algorithms lead to major changes in results relevancy.

What is SEO Copywriting?

SEO Copywriting is the technique of writing viewable text on a web page in such a way that it reads well for the surfer, and also targets specific search terms. Its purpose is to rank highly in the search engines for the targeted search terms.
Along with viewable text, SEO copywriting usually optimizes other on-page elements for the targeted search terms. These include the Title, Description, Keywords tags, headings, and alternative text.
The idea behind SEO copywriting is that search engines want genuine content pages and not additional pages often called "doorway pages" that are created for the sole purpose of achieving high rankings.

What is Search Engine Rank?

When you search any keyword using a search engine, it displays thousands of results found in its database. A page ranking is measured by the position of web pages displayed in the search engine results. If a search engine is putting your web page on the first position, then your web page rank will be number 1 and it will be assumed as the page with the highest rank.
SEO is the process of designing and developing a website to attain a high rank in search engine results.

What is On-Page and Off-page SEO?

Conceptually, there are two ways of optimization:
  • On-Page SEO - It includes providing good content, good keywords selection, putting keywords on correct places, giving appropriate title to every page, etc.
  • Off-Page SEO - It includes link building, increasing link popularity by submitting open directories, search engines, link exchange, etc.



  • SEO - Tactics & Methods

    SEO techniques are classified into two broad categories:
    • White Hat SEO - Techniques that search engines recommend as part of a good design.
    • Black Hat SEO - Techniques that search engines do not approve and attempt to minimize the effect of. These techniques are also known as spamdexing.

    White Hat SEO

    An SEO tactic is considered as White Hat if it has the following features:
    • It conforms to the search engine's guidelines.
    • It does not involve in any deception.
    • It ensures that the content a search engine indexes, and subsequently ranks, is the same content a user will see.
    • It ensures that a web page content should have been created for the users and not just for the search engines.
    • It ensures good quality of the web pages.
    • It ensures availability of useful content on the web pages.
    Always follow a White Hat SEO tactic and do not try to fool your site visitors. Be honest and you will definitely get something more.

    Black Hat or Spamdexing

    An SEO tactic, is considered as Black Hat or Spamdexing if it has the following features:
    • Attempting ranking improvements that are disapproved by the search engines and/or involve deception.
    • Redirecting users from a page that is built for search engines to one that is more human friendly.
    • Redirecting users to a page that was different from the page the search engine ranked.
    • Serving one version of a page to search engine spiders/bots and another version to human visitors. This is called Cloaking SEO tactic.
    • Using hidden or invisible text or with the page background color, using a tiny font size or hiding them within the HTML code such as "no frame" sections.
    • Repeating keywords in the metatags, and using keywords that are unrelated to the website content. This is called metatag stuffing.
    • Calculated placement of keywords within a page to raise the keyword count, variety, and density of the page. This is called keyword stuffing.
    • Creating low-quality web pages that contain very little content but are instead stuffed with very similar keywords and phrases. These pages are called Doorway or Gateway Pages.
    • Mirror websites by hosting multiple websites - all with conceptually similar content but using different URLs.
    • Creating a rogue copy of a popular website which shows contents similar to the original to a web crawler, but redirects web surfers to unrelated or malicious websites. This is called page hijacking.
    Always stay away from any of the above Black Hat tactics to improve the rank of your site. Search engines are smart enough to identify all the above properties of your site and ultimately you are not going to get anything.
Who is who in Computer Science

Who is who in Computer Science

Unknown 16:29 Add Comment

Who is who in Computer Science


Ali Aydar

Ali Aydar
Ali Aydar is a computer scientist and Internet entrepreneur. He is the chief executive officer at Sporcle. He is best known as an early employee and key technical contributor at the original Napster. Aydar bought Fanning his first book on programming in C++, the language he would use two years later to build the Napster file-sharing software.

Anita Borg

Anita Borg
Anita Borg (January 17, 1949 – April 6, 2003) was an American computer scientist. She founded the Institute for Women and Technology (now the Anita Borg Institute for Women and Technology). While at Digital Equipment, she developed and patented a method for generating complete address traces for analyzing and designing high-speed memory systems.

Alfred Aho

Alfred Aho
Alfred Aho (born August 9, 1941) is a Canadian computer scientist best known for his work on programming languages, compilers, and related algorithms, and his textbooks on the art and science of computer programming. Aho received a B.A.Sc. in Engineering Physics from the University of Toronto.

Bjarne Stroustrup

Bjarne Stroustrup
Bjarne Stroustrup (born 30 December 1950) is a Danish computer scientist, most notable for the creation and development of the widely used C++ programming language. He is a Distinguished Research Professor and holds the College of Engineering Chair in Computer Science.

Bill Gates

Bill Gates
Bill Gates (born October 28, 1955) is an American business magnate, philanthropist, investor, computer programmer, and inventor. Gates is the former chief executive and chairman of Microsoft, the world’s largest personal-computer software company, which he co-founded with Paul Allen.

Bruce Arden

Bruce Arden
Bruce Arden (born in 1927 in Minneapolis, Minnesota) is an American computer scientist. He graduated from Purdue University with a BS(EE) in 1949 and started his computing career in 1950 with the wiring and programming of IBM's hybrid (mechanical and electronic) Card Programmed Computer/Calculator at the Allison Division of General Motors.

Brendan Eich

Brendan Eich
Brendan Eich (born 1960 or 1961)is an American technologist and creator of the JavaScript scripting language. He cofounded the Mozilla project, the Mozilla Foundation and the Mozilla Corporation, and served as the Mozilla Corporation's chief technical officer and briefly its chief executive officer.

Barry Boehm

Barry Boehm
Barry Boehm (born 1935) is an American software engineer, Distinguished Professor of Computer Science, Industrial and Systems Engineering, the TRW Professor of Software Engineering. He is known for his many contributions to the area of software engineering.

Bert Bos

Bert Bos
Bert Bos (born 10 November 1963, The Hague, Netherlands) is a computer scientist. He studied mathematics at the University of Groningen, and wrote his PhD thesis on Rapid user interface development with the script language Gist. In 1996, he joined the World Wide Web Consortium (W3C) to work on Cascading Style Sheets (CSS).

Bryan Cantrill

Bryan Cantrill
Bryan Cantrill (born 1973) is an American Software Engineer who worked at Sun Microsystems and later at Oracle Corporation following its acquisition of Sun. Cantrill was included in the TR35 list for his development of DTrace, a function of the OS Solaris 10 that provides a non-invasive means for real-time tracing and diagnosis of software. He is currently Chief Technology Officer at Joyent.

Charles Babbage

Charles Babbage
Charles Babbage FRS (26 December 1791 – 18 October 1871) was an English polymath. He was a mathematician, philosopher, inventor and mechanical engineer, who is best remembered now for originating the concept of a programmable computer.

Dennis Ritchie

Dennis Ritchie
Dennis Ritchie(September 9, 1941 – c. October 12, 2011) was an American computer scientist. He created the C programming language and, with long-time colleague Ken Thompson, the Unix operating system. Ritchie and Thompson received the Turing Award from the ACM in 1983.

David J. Brown

David J. Brown
David J. Brown is an American computer scientist. He was one of a small group that helped to develop the system at Stanford that later resulted in Sun Microsystems, and later was a founder Silicon Graphics in 1982. He define the application binary interface for Solaris, Sun's principal system software product.

Edgar F. Codd

Edgar F. Codd
Edgar F. Codd (August 19, 1923 – April 18, 2003) was an English computer scientist who, while working for IBM, invented the relational model for database management, the theoretical basis for relational databases. He made other valuable contributions to computer science.

Frances Allen

Frances Allen
Frances Allen (born August 4, 1932) is an American computer scientist and pioneer in the field of optimizing compilers. Her achievements include seminal work in compilers, code optimization, and parallelization. She also had a role in intelligence work on programming languages.

Gordon Bell

Gordon Bell
Gordon Bell (born August 19, 1934) is an American electrical engineer and manager. An early employee of Digital Equipment Corporation (DEC) 1960–1966, Bell designed several of their PDP machines and later became Vice President of Engineering 1972-1983, overseeing the development of the VAX.

Gregory Chaitin

Gregory Chaitin
Gregory Chaitin (born 15th. November, 1947 in Argentina) is an Argentine-American mathematician and computer scientist. Beginning in the late 1960s, Chaitin made contributions to algorithmic information theory and metamathematics, in particular an computer-theoretic result equivalent to Godel's incompleteness theorem.

James Gosling

James Gosling
James Gosling OC (born May 19, 1955) is a Canadian computer scientist, best known as the father of the Java programming language. In 1977, Gosling received a Bachelor of Science in Computer Science from the University of Calgary.

John Backus

John Backus
John Backus (December 3, 1924 – March 17, 2007) was an American computer scientist. He directed the team that invented the first widely used high-level programming language (FORTRAN) and was the inventor of the Backus-Naur form (BNF), a widely used notation to define formal language syntax.

Jon Crowcroft

Jon Crowcroft
John Crowcroft (born 23 November 1957) is the Marconi Professor of Communications Systems in the Computer Laboratory of the University of Cambridge. Professor Jon Crowcroft is distinguished for his many seminal contributions to the development of the Internet. His work on satellite link interconnection techniques in the 1980s paved the way for rural broadband.

Larry Page

Larry Page
Larry Page (born March 26, 1973) is an American business magnate and computer scientist who is the co-founder of Google, alongside Sergey Brin. On April 4, 2011, Page succeeded Eric Schmidt as the chief executive officer of Google. As of 2014, Page's personal wealth is estimated to be US$32. 3 billion, ranking him #19 on the Forbes list of billionaires.

Larry Wall

Larry Wall
Larry Wall (born September 27, 1954) is a computer programmer and author, most widely known as the creator of the Perl programming language and Camelia, the spunky spokesbug for Perl 6. Wall grew up in south Los Angeles and then Bremerton, Washington, before starting higher education at Seattle Pacific University in 1976.

Linus Torvalds

Linus Torvalds
Linus Benedict Torvalds (born December 28, 1969) is a Finnish American software engineer, and he is well known for the architect and development of the Linux kernel. He was honored, along with Shinya Yamanaka, with the 2012 Millennium Technology Prize by the Technology Academy Finland "in recognition of his creation of a new open source operating system for computers leading to the widely used Linux kernel.

Luis Von Ahn

Luis Von Ahn
Luis Von Ahn (born 1979) is a Guatemalan entrepreneur and an associate professor in the Computer Science Department at Carnegie Mellon University. He is known as one of the pioneers of crowdsourcing. He is the founder of the company reCAPTCHA, which was sold to Google in 2009, and the co-founder and CEO of Duolingo, a popular language-learning platform.

Luca Cardelli

Luca Cardelli
Luca Cardelli FRS is an Italian computer scientist who is an Assistant Director at Microsoft Research in Cambridge, UK. Cardelli is well known for his research in type theory and operational semantics. Among other contributions, he helped design Modula-3, implemented the first compiler for the (non-pure) functional programming language ML.

Michael Dell

Michael Dell
Michael Dell (born February 23, 1965) is an American business magnate, investor, philanthropist, and author. He is known as the founder and CEO of Dell Inc., one of the world’s leading sellers of personal computers (PCs).

Michael Dertouzos

Michael Dertouzos
Michael Dertouzos (November 5, 1936 - August 27, 2001) was a Professor at the Massachusetts Institute of Technology and Director of the M.I.T. Laboratory for Computer Science (LCS) from 1974 to 2001. During Dertouzos's term, LCS innovated in a variety of areas, including RSA encryption, the spreadsheet, the NuBus, the X Window System, and the Internet.

Maurice Vincent Wilkes

Maurice Vincent Wilkes
Maurice Vincent Wilkes (26 June 1913 – 29 November 2010) was a British computer scientist credited with several important developments in computing. At the time of his death, Wilkes was an Emeritus Professor of the University of Cambridge. He received a number of distinctions.

Nello Cristianini

Nello Cristianini
Nello Cristianini (born 1968) is a Professor of Artificial Intelligence at the University of Bristol, a recipient of the Royal Society Wolfson Research Merit Award. His research contributions across different areas, such as machine learning, artificial intelligence and bioinformatics. Specifically, his work is concentrated in the statistical analysis of the learning algorithms.

Philip Don Estridge

Philip Don Estridge
Philip Don Estridge (June 23, 1937 - August 2, 1985), known as Don Estridge, led development of the original IBM Personal Computer (PC), and thus is known as "father of the IBM PC". His decisions dramatically changed the computer industry, resulting in a vast increase in the number of personal computers sold and bought.

Philip Matthaus Hahn

Philipp Matthaus Hahn
Philipp November 25, 1739 in Scharnhausen, today part of Ostfildern - May 2, 1790 in Echterdingen, today part of Leinfelden-Echterdingen) was a German priest and inventor. In about 1763 he devised a precision sundial, or heliochronometer that incorporated the correction for the equation of time.

Per Brinch Hansen

Per Brinch Hansen
Per Brinch Hansen (November 13, 1938 – July 31, 2007) was a Danish-American computer scientist known for concurrent programming theory. In 1970, his research in computer science focused on concurrent programming, Inspired by Ole-Johan Dahl and Kristen Nygaard's programming language Simula 67, he invented the monitor concept in 1972.

Rasmus Lerdorf

Rasmus Lerdorf
Rasmus Lerdorf (born 22 November 1968) is a Greenlandic programmer with Canadian citizenship. He created the PHP scripting language, authoring the first two versions of the language and participating in the development of later versions led by a group of developers including Jim Winstead.

Richard Stallman

Richard Stallman
Richard Stallman (born March 16, 1953) is an American is a software freedom activist and computer programmer. He is best known for launching the GNU Project, founding the Free Software Foundation, developing the GNU Compiler Collection and GNU Emacs, and writing the GNU General Public License.

Robert S. Boyer

Robert S. Boyer
Robert S.Boyer is a retired professor of computer science, mathematics, and philosophy at The University of Texas at Austin. He and J Strother Moore invented the Boyer–Moore string search algorithm, a particularly efficient string searching algorithm, in 1977. He and Moore also collaborated on the Boyer–Moore automated theorem prover, Nqthm, in 1992.

Sabeer Bhatia

Sabeer Bhatia
Sabeer Bhatia was born in Chandigarh on 30 December 1968. He grew up in Bangalore and had his early education at the Bishop's School in Pune and then at St Joseph's Boys High School in Bangalore. Sabeer Bhatia is an Indian American entrepreneur who founded the Hotmail email service and Jaxt.

Sergey brin

Sergey brin
Sergey Brin (born August 21, 1973) is an American computer scientist and internet entrepreneur who, with Larry Page, co-founded Google, one of the most profitable Internet companies. As of June 2014, his personal wealth was estimated to be US$ 30 billion. Together, Brin and Page own about 16 percent of the company.

Serge Abiteboul

Serge Abiteboul
Serge Abiteboul is a computer scientist working in the areas of data management, database theory, and finite model theory. He is currently a senior researcher at the Institute national de recherche en informatique et en automatique (INRIA), the French national research institute focussing on computer science and related areas, and has been a professor of the College de France.

Tim Berners Lee

Tim Berners Lee
Tim Berners Lee (born 8 June 1955), also known as "TimBL", is a British computer scientist, best known as the inventor of the World Wide Web. Berners Lee is the director of the World Wide Web Consortium (W3C), which oversees the Web's continued development.

Vint Cerf

Vint Cerf
Vint Cerf ( born June 23, 1943) is an American internet pioneer, who is recognized as one of "the fathers of the Internet", sharing this title with American engineer Bob Kahn. His contributions have been acknowledged and lauded, repeatedly. He was instrumental in the development of the first commercial email system (MCI Mail) connected to the Internet.