Computer Science Tutors for College Level in Lucknow

When the goto statement is encountered, the control of the program jumps to label: and starts executing the code.

EG: GOTO LABEL;

.............................

.............................

LABEL:

STATEMENT;

Amphoteric oxide : The oxides of elements which can react with both acid and base to give salt and water .Here Zno is amphoteric oxidebecause it has dual nature of reaction that is it can reacts with both acid and base to form salt and water ZnO+Acid-Salt+water ZnO+Base-salt+water.

The answer is Amphibians. The word amphibian came from a Greek word called "amphibios" which is composed of two root words : 1. "amphi", meaning "of both kinds," and 2. "bios", meaning "life." i.e. they can lead a dual life.

Internet Service Provider (ISP):

 An internet service provider (ISP) is a company that provides web access to both businesses  and consumers.

• ISPs may also provide other services such as email services, domain registration, web hosting, and browser services.
• An ISP is considered to be an information service provider, storage service provider, internet network service provider (INSP), or a mix of all of them.
• Internet use has evolved from only those with university or government accounts having access to nearly everyone having access, whether it's paid or free.
• Access has gone from dial-up connections to high-speed broadband technology.

As noted above, internet service providers primarily provide their customers access to the internet—plain access providers that just handle the traffic between the individual and the internet as a whole. But there may also be other services bundled in depending on the customer's location and availability. Some of these services include:

• Email services
• Web hosting services
• Domain registration
• Browser and software packages 

  WORLD WIDE WEB: The World Wide Web (abbreviated as the Web or WWW) is a system of Internet servers that supports hypertext to access several Internet protocols on a single interface. Almost every protocol type available on the Internet is accessible on the Web. This includes e-mail, FTP, Telnet, and Usenet News. In addition to these, the World Wide Web has its own protocol that is   Hyper Text Transfer Protocol, or HTTP.

  The operation of the Web relies primarily on hypertext as its means of information retrieval. Hyper Text is a document containing words that connect to other documents. These words are called   links and are selectable by the user. A single hypertext document can contain links to many documents. In the context of the Web, words or graphics may serve as links to other documents, images, video, and sound. Links may or may not follow a logical path, as each connection is programmed by the creator of the source document. Overall, the Web contains a complex virtual web of connections among a vast number of documents, graphics, videos, and sounds.

  Producing hypertext for the Web is accomplished by creating documents with a language called Hyper Text Markup Language, or HTML. With HTML, tags are placed within the text to accomplish document formatting, visual features such as font size, italics and bold, and the creation of hypertext links. Graphics and multimedia may also be incorporated into an HTML document. HTML is an evolving language, with new tags being added as each upgrade of the language is developed and released. The World Wide Web Consortium (W3C), led by Web founder Tim Berners-Lee, coordinates the efforts of standardizing HTML. The W3C now calls the language XHTML and considers it to be an application of the XML language standard.

  E-MAIL: Electronic mail, or e-mail, allows computer users locally and worldwide to exchange messages. Each user of e-mail has a mailbox address to which messages are sent. Messages sent through e-mail can arrive within a matter of seconds.

  A powerful aspect of e-mail is the option to send electronic files to a person’s e-mail address. Non-ASCII files, known as binary files, may be attached to e-mail messages. These files are referred to as MIME attachments.

  MIME stands for Multimedia Internet Mail Extension, and was developed to help e-mail software handle a variety of file types. For example, a document created in Microsoft Word can be attached to an e-mail message and retrieved by the recipient with the appropriate e-mail program. Many e-mail programs, including Eudora, Netscape Messenger, and Microsoft Outlook, offer the ability to read files written in HTML, which is itself a MIME type.

A homepage is the front page of a website which contains link to other pages. This is the page that shows up by default when someone accesses a URL from their browser.

Any page other than the home page of a website is the webpage.It is a single page that is part of a website.

PUSH from Top of Stack.. 

Taking data and instructions from a user, processing the data as per instructions, and displaying or storing the processed data, are the four major functions of a computer. These functions are also known as the input function, process function, output function, and storage function, respectively

Carolus Linnaeus ( Father of Taxonomy) who gave Binomial Nomenclature system and Hierarchy of taxonomic categories besides Two kingdom system of classification. He wrote two books " Species Plantarum " in 1753 and "Systema Naturae" in 1758.

Use a keeper

The best way to prevent any loss in a magnet’s magnetic ability is to store it with a keeper. A keeper is a piece of iron that is temporarily added between the north and south poles of a magnet to prevent it from demagnetizing by redirecting the magnetic field.

If a keeper is not provided with your magnet, then store your magnets on a steel sheet.

Store in pairs

Store magnets in pairs to prevent the two south or two north magnetic poles of the magnets from touching. Two poles of the same alignment should not be allowed to touch due to their magnetic field lines repelling. If the two poles continuously repel from one another, the magnet’s strength is weakened.

Store in a dry place

Magnets can corrode easily when stored in damp conditions. This can affect the magnets’ magnetism, particularly if they rust, as this will produce an air gap that stops the magnets from producing a secure bond on ferromagnetic material.

When flexible magnets become wet, the water can cause the laminate to bubble. To stop this from happening, a flexible magnet, particularly if it’s is being used as a car sign, needs to be cleaned and dried regularly.

Store in a non-ferromagnetic container

To store multiple magnets in one place you will need to place them into a non-ferromagnetic container, for example, a sealed wooden box or Tupperware. The non-ferromagnetic container helps to stop the magnet from attracting any unwanted metal debris.

Keeping the magnet’s strength

A magnet’s strength can be weakened by factors such as high temperatures and storing next to high voltage electricity. When the magnet is exposed to factors such as these for a long time, it can become demagnetized.

In most cases, except for exposure to high temperatures, a magnet’s strength can be reinstated through the use of another strong magnet.

Protecting the magnet

Magnets can have either a coating or casing to protect them from any bumps or corrosion. One form of coating for a magnet – rubber, can be replaced when it becomes torn or cracked, for example, after being left exposed to the elements whilst being used as a car magnet.

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