Internet help pdf

Connecting to the internet 1. May be four things, basically: mail, discussion groups, long- distance computing, and file transfers. Internet mail is e-mail or electronic mail , much faster as compared to normal postal mail. One can also send software and certain forms of compressed digital image as an attachment. News groups or discussion groups facilitate Internet user to join for various kinds of debate, discussion and new sharing.

Programmers can maintain accounts on distant, powerful computers, execute programs. File transfers service allows Internet users to access remote machines and retrieve programs, data or text. E-Mail Electronic Mail E-mail or Electronic mail is a paperless method of sending messages, notes or letters from one person to another or even many people at the same time via the Internet.

E-mail is very fast compared to the normal post. E-mail messages usually take only few seconds to arrive at their destination. One can send messages anytime of the day or night and it will get delivered immediately. It works 24 hours a day, seven days a week.

You have the privilege of sending something extra even such as a file, graphics, images etc. The biggest advantage to using e-mail is that it is cheap, especially when sending messages to other states or countries and at the same time it can be delivered to a number of people around the world.

Although e-mail is faster and cheaper, it has many of the components of regular mail. It allows you to compose note, get the address of the recipient and send it. Once the mail is received and read, it can be forwarded, replied. One can even store it for later use, or delete. In e-mail even the sender can request for delivery receipt and read receipt from the recipient. Components of an E-mail Address As in the case of normal mail system, e-mail is also based upon the concept of a recipient address.

The email address provides all of the information required to get a message to the recipient from anywhere in the world. Consider the e-mail ID john hotmail.

Hotmail is the mail server where the mailbox "john" exists,. It gives access to directories or folders on remote computers and allows software, data and text files to be transferred between different kinds of computers. FTP "Client" is a program running on the your computer that enables you to talk to, and get stuff from, remote computers.

If one does not have an account in the remote FTP server, still he can connect to the server using anonymous login. Using anonymous login anyone can login in to a FTP server and can access public file archives, anywhere in the world, without having an account.

One can easily Login to the FTP site with the username anonymous and e-mail address as password. Telnet Remote Computing Telnet or remote computing is telecommunication utility software, which uses available telecommunication facility and allows you to become a user on a remote computer.

Once you gain access to the remote computer, you can use it for the intended purpose. The commands typed on the client computer are sent to the local Internet Service Provider ISP , and then from the ISP to the remote computer that you have gained access. The WWW is a system that we use to access the Internet. One can easily surf the Web by jumping from one document to another using the links in those documents. These documents can be in many formats, such as text, graphics, animation, sound and latest is video.

They may also be a combination of all these. All the information on Internet are presented to the user as a document or more popularly known as Web Page. All these Web Pages are link to each other or even to section within a Web Page. And these links are known as Hyper Links. A Usenet newsgroup is a repository usually within the Usenet system, for messages posted from many users in different locations. Usenet newsgroups, are a similar e-mail conferencing system, but are less intrusive to the subscriber than list-servers since messages are posted to Usenet sites around the world instead of appearing in each subscriber's mailbox.

Usenet refers to the huge collection of messages which are posted to tens of thousands of newsgroups worldwide. Millions of people around the world regularly read newsgroup messages, following their favorite topics of interest. New newsgroups are added and old ones deleted every day. Usenet can provide a unique information resource not readily accessible from any other source.

If you are looking for personal anecdotes about products, especially computer-related hardware and software products, how-to information, practical advice, or the latest news stories, newsgroup archives may be a valuable resource. Typically, the newsgroup is focused on a particular topic of interest.

Some newsgroups allow the posting of messages on a wide variety of themes, regarding anything a member chooses to discuss as on-topic, while others keep more strictly to their particular subject, frowning on off-topic postings. The news admin the administrator of a news server decides how long articles are kept on his server before being expired deleted. Different servers will have different retention times for the same newsgroup; some may keep articles for as little as one or two weeks, others may hold them for many months.

Some admins keep articles in local or technical newsgroups around longer than articles in other newsgroups. Newsgroups generally come in either of two types, binary or text. Hierarchies Newsgroups are often arranged into hierarchies, theoretically making it simpler to find related groups. The term top-level hierarchy refers to the hierarchy defined by the prefix before the first dot.

The most commonly known hierarchies are the Usenet hierarchies. So for instance newsgroup rec. One of the most popular ways is through the use of web or online conferencing.

Videoconferencing is the conduct of a videoconference also known as a video conference or video teleconference by a set of telecommunication technologies which allow two or more locations to communicate by simultaneous two-way video and audio transmissions. It has also been called 'visual collaboration' and is a type of groupware.

This can be as simple as a conversation between people in private offices point-to-point or involve several multipoint sites in large rooms at multiple locations. Besides the audio and visual transmission of meeting activities, allied videoconferencing technologies can be used to share documents and display information on whiteboards.

Web conferencing is currently being used by businesses for employee training, meetings and general communication. Educational institutions are using web conferencing as a way to enhance on-site classes or distance education classes. Web conferencing is a tool which provides a way for "students" to share information, ask questions, get answers, discuss problems and work collaboratively.

Conferencing provides opportunities to solve issues by providing a dynamic exchange of text, graphics, HTML links to information, audio, and video in a structured conversation organized by topic. Web conferences may take place in "real-time" where all participants are communicating at the same pre-arranged time.

There are basically two kinds of videoconferencing systems: 1. Dedicated systems have all required components packaged into a single piece of equipment, usually a console with a high quality remote controlled video camera. These cameras can be controlled at a distance to pan left and right, tilt up and down, and zoom. They became known as PTZ cameras.

The console contains all electrical interfaces, the control computer, and the software or hardware-based codec. There are several types of dedicated videoconferencing devices: 1. Large group videoconferencing are non-portable, large, more expensive devices used for large rooms and auditoriums. Small group videoconferencing are non-portable or portable, smaller, less expensive devices used for small meeting rooms. Individual videoconferencing are usually portable devices, meant for single users, have fixed cameras, microphones and loudspeakers integrated into the console.

Desktop systems are add-ons hardware boards, usually to normal PCs, transforming them into videoconferencing devices. A range of different cameras and microphones can be used with the board, which contains the necessary codec and transmission interfaces. Videoconferences carried out via dispersed PCs are also known as e-meetings.

Internet Chat Communication on the Internet goes even further than personal e-mail, newsgroups and mailing lists, to encompass real-time conversations synchronous communication among two or more people. It consists of thousands of chat channels, each covering a different topic and with participants from all over the world. Chat rooms The term chat room, or chatroom, is primarily used by mass media to describe any form of synchronous conferencing, occasionally even asynchronous conferencing.

The term can thus mean any technology ranging from real-time online chat over instant messaging and online forums to fully immersive graphical social environments. Text-based chat Online chat is a way of communicating by sending text messages to people in the same chat-room in real- time.

Some chat rooms such as Yahoo! The oldest form of chat rooms are the text-based variety. These are characterized by using a graphic representation of the user [[Avatar virtualing elements such as games in particular massively multiplayer online games and educational material most often developed by individual site owners, who in general are simply more advanced users of the systems.

The most popular environments also allow users to create or build their own spaces. Some visual chat rooms also incorporate audio and video communications, so that users may actually see and hear each other. Chat room activities The primary use of a chat room is to share information via text with a group of other users.

Generally speaking, the ability to converse with multiple people in the same conversation differentiates chat rooms from instant messaging programs, which are more typically designed for one-to-one communication. The users in a particular chat room are generally connected via a shared interest or other similar connection, and chat rooms exist catering for a wide range of subjects. New technology has enabled the use of file sharing and webcams to be included in some programs. Ways of Connecting to the Internet There are various type of connectivity to get hook on to Internet.

They all can be broadly classified into following category. Broad Band Internet Connection Definition: The term broadband refers to any type of transmission technique that carries several data channels over a common wire. It is the access to the Internet from a network, which is not on the Internet.

The gateway allows the two different types of networks to "talk" to each other. But the users of the Gateway Internet have limited access to the Internet. They might not be able to use all the tools available on Internet.

Leased Connection Leased connection is also known as direct Internet access or Level Three connection. It is the secure, dedicated and most expensive, level of Internet connection. With leased connection, your computer is dedicatedly and directly connected to the Internet using high-speed transmission lines. It is on-line twenty-four hours a day, seven days a week. Leased Internet connections are limited to large corporations and universities who could afford the cost.

It is a dedicated phone connection supporting data rates of 1. A T-1 line actually consists of 24 individual channels, each of which supports 64Kbits per second. Most telephone companies allow you to buy just one or some of these individual channels. This is known as fractional T-1 access. Bonded T-1 A bonded T-1 is two or more T-1 lines that have been joined bonded together to increase bandwidth. Where a single T-1 provides approximately 1. Two bonded T-1s allow you to use the full bandwidth of 3Mbps where two individual T-1s can still only use a maximum of 1.

To be bonded the T-1 must run into the same router at the end, meaning they must run to the same ISP. T-3 Lines T-3 lines are dedicated phone connections supporting data rates of about 43 to 45 Mbps. It too is a popular leased line option.

A T-3 line actually consists of individual channels, each of which supports 64 Kbps. DSL connects your home or office to the Internet through the same telephone wire that comes from the telephone pole on the street.

DSL service, combines separate voice and data channels over a single telephone line. In DSL, voice fills the low end of the frequency spectrum and data fills the high end. DSL is also relatively new technology that is just being introduced in many places. Hardware developers are working with service providers to make the service cost affordable for consumers.

As time goes by, the service should become more widely available at a reasonable price. Cable Connection Through the use of a cable modem you can have a broadband Internet connection that is designed to operate over cable TV lines.

Cable Internet works by using TV channel space for data transmission, with certain channels used for downstream transmission, and other channels for upstream transmission.

Because the coaxial cable used by cable TV provides much greater bandwidth than telephone lines, a cable modem can be used to achieve extremely fast access. Cable lines offer an extremely high bandwidth connection to the Internet. Or create a local administrator account.

If the problem doesn't recur when you log on to the new account, then the original user account could be damaged. For information on setting up a user account, refer to the following resources or contact your network administrator:. Windows XP: To add a new user to the computer. Disclaimer: The registry contains system-related information that is critical to your computer and applications.

Before modifying the registry, be sure to make a backup copy of it. Adobe doesn't provide support for problems that can arise from improperly modifying the registry. Adobe strongly recommends that you have experience editing system files before you modify the registry. For more information about the registry, see the Windows documentation or contact Microsoft. If Acrobat or Reader isn't installed in the default path, make sure that the key's Default value points to the actual location.

For a video demonstration of the procedure, see Check the correct registry path. Type the default path listed above in the "Value data" for your product.

It is possible that this key is damaged, is pointing to an obsolete version of Acrobat or Reader, or is pointing to a third-party PDF viewer.

Right-click AcroExch. Document and choose Delete ; make sure that you have the correct key, and click Yes on any prompts.

For instructions, see the documentation that came with the web server, or see this Microsoft support article. Legal Notices Online Privacy Policy. Troubleshoot viewing PDF files on the web Search. Solutions to common issues viewing PDFs from a website. Common symptoms when you can't view a PDF on the web:. Please exit and try again. Update Reader or Acrobat.

Open Reader or Acrobat. Acrobat 9 and earlier : If a new update is available it installs automatically. Acrobat DC: Continue to the next step. When the Updater dialog box appears, click Download. PDF solutions. Refresh or reload the page. Often, just refreshing the page in your browser allows the PDF to load fully.

Hold down the Shift key and press the Refresh or Reload button in the browser. Try to view a different PDF.

Try to view a PDF on your hard drive. Click Browse. Locate a PDF on your computer, select it, and then click Open. Browser and browser-settings solutions. Use a different web browser. Switch to Compatibility View Internet Explorer. Restart your computer and try opening the PDF again. For instructions on clearing the browser cache, refer to these articles: Firefox: Delete browsing, search, and download history Chrome: Delete your cache, history, and other browser data Internet Explorer 8 through 11 : Viewing and deleting your browser history Internet Explorer 7 : Delete webpage history.

Try resetting the display preference in your browser to clear up the viewing issue. From the list at left, select Internet. Try to open the PDF again from the website. This procedure applies only to Windows Vista users with Internet Explorer 9 or earlier. Only Reader To make sure you're using a bit version of Internet Explorer, follow these steps:.

If you see "bit Edition" next to the version, then go on to step 2. Reader and Acrobat solutions. Repair Reader or Acrobat. Repair from within Reader or Acrobat. Repair using Control Panel Windows. Close Reader or Acrobat. Do one of the following in Control Panel, depending on your version of Windows:. In the list of programs, select Adobe Reader or Adobe Acrobat.

Click Change and follow the instructions to repair the application. When the process is complete, click Finish. Advanced solutions. Make sure that the Adobe PDF browser add-on is enabled. Under Add-on Types, select Toolbars and Extensions.

In the Show menu, choose All add-ons. Click the Enable button. Disable turns off the add-on so it does not open PDFs in the browser. Make sure that the Adobe PDF browser add-on nppdf In the Firefox address bar, type about:plugins. Scroll down to a section named Adobe Acrobat.