What is a Web?
The World Wide Web (www) is the most popular extension of the Internet, the global electronic communication network; Information is presented on ‘pages ‘ made accessible through program called browsers. Common browsers include Firefox, Netscape, Internet Explorer, Mosaic and Lynx. The information provided reflects the activities, interests and frequently personalities of those who host the pages -from recreation and research areas through to full blown publication, art galleries and sound studios. Web pages are usually designed in such a way that the reader can effortlessly follow ‘links’ to related subjects, information or files. The links could be pointing to somewhere else on the same page or half a world away.
What are web pages?
The latest rage, of course, is to have your own Home Page on the”World Wide Web” [www] just is a fancy name for the computers on the Internet that support Hyper Text Transfer Protocol [HTTP]. This is an FTP based program that operates on images and text in a simultaneous download. Web Page sites use more bandwidth than any others, because those images each take as much space and time as downloading a smaller book.Each and everytime you access a new Web Page. If you have just accessed pages then a review of that page might come from your disk cache; this is why you will see your disk light trashing so much when you do any viewing of images. . .it is saving all the images, in case a particular image is called up again. This is much faster than downloading the images again, but would wear the hard drive much faster. If you listen closely for hard drive head thrashing, you know what we mean.Being cautious with what you download will not only preserve the bandwidth and access for everyone else, but will also preserve a hard drive a lot longer, presuming it dies from usage as opposed to those that are dropped or hit by lightning or kill motors.You can do your part to reduce this wastage, by optimizing those pictures you do include on your Web Pages. . .jpg files are easy to optimize.
Who uses Web?
Exact usage numbers are impossible to determine. Millions of people surf the internet in more than 186 countries on regular basis. In the beginning, the main users and authors were academic ( relating to the origin of the internet ), but now the trend towards wider involvement is from companies, societies and individuals. The numbers of host computer have increased from negligible numbers in to millions. Currently more than 20 million host computers are estimated to be connected to the www.
WWW surfing key shortcuts:
Those of us who spend hours on the Internet every day have grown to appreciate how valuable keyboard shortcuts can be in saving time. Here are a few shortcuts that can prove to be real time-savers:
| Command | Shortcut Key |
|---|---|
| Copy: | CTRL + C |
| Paste: | CTRL + V |
| Undo: | CTRL + Z |
| Redo: | CTRL + Y |
| Cut: | CTRL + X |
| Print: | CTRL + P |
| Save: | CTRL + S |
| Select All: | CTRL + A |
| Refresh Page: | F5 |
| Find a File: | F3 |
| Help: | F1 |
| Switch to Full Screen: | F11 |
| Stop Page Download: | ESC |
| Close Window: | CTRL + W |
| New Browser Window: | CTRL + N |
| Go to Home Page: | ALT + HOME |
| Previous Page : | BACKSPACE |
| Add Page to Favorites: | CTRL + D |
| Open Favorites Menu: | CTRL + I |
| Open History: | CTRL + H |
| Shut Down Program: | ALT + F4 or CTRL + ALT + DELETE |
| Go to top of page: | HOME |
| Scroll up the page: | PAGE UP |
| Scroll down the page: | PAGE DOWN |
| Start Menu: | CTRL + ESC |
| ShortCut Menu: | SHIFT + F10 |
| Add a www to the beginning and .com to the end of a Web address | CTRL + ENTER (e.g. type labhlakshmi in address bar and press CTRL+ENTER it will make that www.labhlakshmi.com) |
Print this list and keep it handy near your computer. It may take a short to master all these shortcuts.
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