2009-06

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When you send an email, what really happens when you hit the ‘Send’ button? Did you know that when you send an email it does not get sent in one piece but is split up into little bits called ‘packets’? Each packet may take an entirely different route through the Internet, perhaps travelling half way around the globe before being reassembled (hopefully!) at the correct destination. Email is only possible because of an age-old principle known as Protocol. Protocol simply means ‘an agreed set of rules’, and to enable your computer to send an email to another computer (that is, to communicate), it must follow an agreed set of rules; a protocol. Emails use a special protocol called SMTP (Simple Mail Transfer Protocol). There are many other types of protocol. Next time you visit a website look at the full website address. For example: http:// www.stchads.org. Ever wondered what the http bit means? It’s another protocol: Hyper Text Transfer Protocol – the rules that computers must follow to enable them to download and view web pages. It’s amazing how email has transformed communications over the last few years, but the need to communicate over large distances has always been important. Native American Indians made use of smoke signals by starting a fire using damp grass on a hill, causing a column of smoke to rise. In general, the position of the smoke column on the hill determined the message; smoke from the hill top may mean danger whereas smoke from halfway up the hill could mean that all was well. The only problem was that each tribe had its own signalling system, its own smoke-signal protocol! The American Indians were not the only ones to use smoke signals. In Ancient China soldiers on the Great Wall would alert each other of impending attacks by R Smoke signals in a hi-tech age. sending smoke-signals from tower to tower. A warning message could be sent 300 miles in just a few hours. The need to communicate over distances has always been essential in times of war. Battleships would use a system where a message could be conveyed by the colour and pattern of a flag and its position on a mast. A person on one ship could also use two flags to represent different letters of the alphabet depending on how the flags were held. This system of semaphore is another type of protocol. You could only understand the transmitted message if you knew the agreed rules, the semaphore protocol. The advent of radio transformed the future of communications forever. Although not the inventor of radio, Marchese Guglielmo Marconi was able to successfully transmit radio signals over large distances. On December 17, 1902, a transmission from the Marconi station in Glace Bay, Nova Scotia, Canada, became the first radio message to cross the Atlantic from North America. A popular means of communicating information over radio was Morse Code; modern traffic controllers are still required to have a basic understanding of Morse Code which consists of ‘dots’ and ‘dashes’ to represent letters of the alphabet. You may be familiar with the code for SOS as “dot-dot- St Chads Church, Linden Avenue, Woodseats email: office@stchads.org Church Offices: 15 Camping Lane, Sheffield S8 0GB Page 16 website: www.stchads.org Tel: (0114) 274 5086
dot, dash-dash-dash, dot-dot-dot”. Morse Code is yet another form of protocol. Around this same time of early radio, the development of telephone and television were well under way. It’s hard to imagine life without either of these, and where would we be without mobile phones and texting? The next major development in communications was not until the advent of the Internet — invented by English scientist Tim Berners-Lee. On Christmas Day 1990 he implemented the first successful communication between two HTTP computers via the Internet. So we have come full circle back to our humble protocol. The whole purpose of Protocol is to enable communications. As Bob Hoskins used to say on the BT advert, “It’s good to talk!” We follow protocols when we talk to All communication has protocol. R each other, perhaps without realising it. A polite conversation may begin with a “hello, how are you?” and end with “see you later!”. So the way you speak and the words you use are all part of the protocol of spoken communication between people. But what about talking to God? Is there a protocol, a right way to speak to Him? The disciples asked Jesus himself, “how should we pray?” and He taught them the Lord’s Prayer; I’m sure you are familiar with it. He also said that we should find a quiet place, to pray simply and honestly, not to babble on with lots of words but instead to come to God just as we are. Check this out for yourself in the Bible by reading Matthew chapter 6 verses 5 to 13. Isn’t it great news that we can come before the Creator of the Universe anytime we want to, just as we are, without having to follow any religious procedure or routine! And it gets better still: Jesus says, "Ask and it will be given to you; seek and you will find; knock and the door will be opened to you. For everyone who asks receives; he who seeks finds; and to him who knocks, the door will be opened.” (Matthew 7:7-8) Perhaps if you’ve never talked to God before, now would be a great time to start. If you’re not sure what to say, just follow the simple protocol above! Daren Craddock St Chads Church, Linden Avenue, Woodseats email: office@stchads.org Church Offices: 15 Camping Lane, Sheffield S8 0GB Page 17 website: www.stchads.org Tel: (0114) 274 5086
Page 1 and 2: June/July 2009 Reaching 12,000 peop
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