No drought that every one who works with computer also makes use of such necessary device as printer. Now you print out important documents, articles or photos of your loved ones without a moment’s hesitation. But do you know that the process of printing has it’s own history and years ago using a printer you could find at once that printer ink is out what presented a big problem. Printers used ribbons or daisy wheels to print on paper. Let’s take a look at the evolution of printer ink cartridges. Ink jet printers and printer cartridges were introduced in 1984 and widely accepted in 1990. First the dot matrix method used a ribbon. But the industry tried to find new more convenient and easier thechnologies to make printing. There is the drop on demand method where the ink squirts onto the paper through tiny nozzles. The amount of ink dropped the page is controlled by the software driver that controls which nozzle fires and when.
After years of changing ribbons, adding toner ink to reservoirs within the computer a printing became not only black and white but colored as well. Now inkjet printer cartridges provide you wide opportunity to print out on any sized paper, on fabric and on film. A modern ink jet printer is the most popular choice for printing using worldwide.
1452 - Gutenberg used oil-based ink, moveable type, and an old winepress to make the first printing press.
Martin Luther began the Protestant reformation making extensive use of the printing press.
1714 - The typewriter was born. Schematics that were done by Mills were discovered however, there is no proof that any typewriters were actually made.
1874 - Christopher Sholes, Samuel Soule, and Carlos Glidden made a keyboard that became known as the “qwerty” because of the first five keys on the top row of the keyboard.
1894 - Franz Wagner developed a typewriter that is very similar to the ones made today. He created a design that let the typists watch as they were typing. Previously, paper would go through a roller as you typed and you could not see what you typed until you were done.
1897 - Underwood (by John Underwood) was the prototypical typewriter of its day.
1939 - Charles Carlson developed electrography, which is the first dry writing technique developed in the United States.
1949 - Haloid Company began to commercially developed electrography for the first time.
1959 - Xerox 914 hit the market and forced other businesses to update their communication systems.
1969 - Xerox first introduced dry printing (laser printing) by Gary Starkweather.
1078 - Xerox put out the world’s first business laser printer the Xerox 9700. It copied documents at the speed of 120 ppm (pages per minute)
1979 - The IBM 3800 could print out 20,000 lines per minute.
1980’s - The use of toner cartridges became obsolete.
1984 - Hewlett-Packard released the first home-based desktop laser printer.
Printing History.
15 12 2007Comments : No Comments »
Categories : Computers, History, Technology
Online TV – great find
13 12 2007For sure, Internet is really changing and the way we use it as well. There is a very interesting site that lets you watch TV online: Online TV. If you don’t have a television near your computer or if you simply prefer web TV channels, than this site is perfect for you. Service is called MyEasyTV.com and it has over 380 TV channels you can watch on your PC. Channels are sorted in categories, such as news, sports, entertainment, educational, movies, music and more.
TV over IP seems to have a very bright future, so this site will be a hit for sure.
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Tags : Online TV
Categories : Computers, Technology
IP Telephony.
12 12 2007What is this VoIP? This is just IP Telephony also known as Internet telephony or Voice over Broadband. This is real telephone of future. Using your high-speed Internet connection you can make all your phone calls with having the cost advantages to consumers over traditional telephone networks. Besides that you get the ability to transmit more than one telephone call down the same broadband-connected telephone line. Therefore VoIP is real great idea for a simple way to add an extra telephone line to a home or office. Most of the difficulties of creating a secure phone over traditional phone lines, like digitizing and digital transmission are already in place with VoIP. It is only necessary to encrypt and authenticate the existing data stream. 3-way calling, call forwarding, automatic redial, and caller ID; features that traditional telecommunication companies normally charge extra for.
Secure calls using standardized protocols (such as Secure Real-time Transport Protocol.) Most of the difficulties of creating a secure phone over traditional phone lines, like digitizing and digital transmission are already in place with VoIP. It is only necessary to encrypt and authenticate the existing data stream. You get integration with other services available over the Internet, including video conversation, message or data file exchange in parallel with the conversation, audio conferencing, managing address books, and passing information about whether others (e.g. friends or colleagues) are available online to interested parties.
VoIP gives the ability to be mobile. One can make international calls to be in contact anytime, anywhere with an internet connection.
So, one has all reasons now to start to use VoIP. I hope people involved in this project taking care of the future compatibility, security and reliability issue of the exchanges.
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Categories : Computers, Future, Technology
