ould have run out of enough supply of food to feed ourselves. How about if cave men didn't discover fire? We would have not survive even just for a Day. All these things we owe to technology, so we must harness what it has to offer And further improve our society. Inventions That Have Changed Our Lives: Telephone: In the field of communication one of the most famous and useful invention In our modern society is the telephone. Invented by Alexander Graham Bell, he has Made our life so much easier and more productive. Saying that he has made an impact To society would be an understatement. These telephones transmit electronic pulses That would then be converted to sound that is comprehendible to us humans, but These telephones are big and bulky and they need wires to transmit these pulses. Then Came the invention called A cellular telephone that designed to give the user maximum Freedom of movement while using a telephone. A cellular telephone uses radio signals To communicate between the set and an antenna. The served area is divided into cells something like a honeycomb, and an antenna is placed within each cell and connected by telephone lines to one exchange devoted to cellular telephone calls. This exchange connects cellular telephones to one another or transfers the call to a regular exchange if the call is between a cellular telephone and a noncellular telephone. The special cellular exchange, through computer control, selects the antenna closest to the telephone when service is requested. As the telephone roams, the exchange automatically determines when to change the serving cell based on the power of the radio signal received simultaneously at adjacent sites. This change occurs without interrupting conversation. Practical power considerations limit the distance between the telephone and the nearest cellular antenna, and since cellular phones use radio signals, it is very easy for unauthorized people to access communications carried out over cellular phones. Currently, digital cellular phones are gaining in popularity because the radio signals are harder to intercept and decode. Also the fast growing popular video phones that work like a normal telephone but includes the ability to transmit videos through the use of a small camera. although these video phones are not yet popular in our present society. they will soon be in every home in the world. Pagers: not all inventions that where once practical remain practical. one example are the invention of pagers. although these pagers are still currently used in our society they in my own opinion have out lived there use. these pagers where used during the early 90s for the reason that they are more reliable, less expensive and more portable than a cellphone. but now cellphones are cheaper and come in sizes that are almost as small as a pager. so these pagers have out lived there use and are now impractical to use in some countries. but in the Philippines we have still retained it for they are "free" compared to a cellphone. Satellite Band Radio (SBR) Satellite Band Radios are virtually unheard off in our country. these radios are like normal radios but use satellites to transmit there information instead of the normal analog radio waves used. the use of these satellite radios give us better variety in the programs we listen to. and will infact make the change of information faster and easier from country to country. for a person will receive same information virtually at same time as other radios abroad. Internet: internet is a term used for the interconnection of computer networks that enables connected machines to communicate directly and transmit data to any place in the world. in this part of the paper i will talk about the communication possibilities of the internet. First is the E-mail the E-mail is one of the first applications used in the internet. an E-mail is like sending a regular mail to someone, but instead of waiting a long time for the person to receive the ma

Some common words found in the essay are:
Graham Bell, Leslie Groves, Computers People, Samuel Colt, IRC Internet, Introduction Technology, Nobel Prize, Albert Sabin, Edward Jenner, Vietnam Maneuverable, cellular telephone, cellular phones, radio signals, vaccine containing, television camera, technology society, satellite band, british physician, immune smallpox, growing population,
Approximate Word count = 3253
Approximate Pages = 13 (250 words per page double spaced)