- •Unit I Programming languages Words and expressions to be remembered:
- •Exercise 1
- •Read and translate the text
- •History of programming languages
- •Text II Words and word combinations to be learnt:
- •Programming languages
- •Glossary
- •Computer programming
- •Programming languages
- •Fortran IV
- •2. Pascal
- •3. Rpg II Programming language
- •1. Running the computer program
- •2. The conversion of symbolic languages
- •3. Testing the computer program
- •Unit II Operational systems
- •Unit III Radio waves
- •Radio waves
- •In the picture you can see the way that original sound passes before it becomes reproduced sound. Describe this way in your own words.
- •Brief history of the radio
- •Uses of radio
- •Unit IV Frequency converters
- •Frequency converters
- •Am broadcast radio and fm broadcast radio
- •Unit V Amplifiers
- •Amplifiers
- •Unit VI Feeders
- •Altitudinal Meteorological Mast (amm)
- •Unit VII Computer crimes
- •Computer crimes
- •Computer crimes – cyberterrorism, hacking
- •What is “Firewall?”
- •Text 3 Are Wireless Networks Secure?
- •Unit VIII
- •Viruses
- •Text 1 Computer viruses
- •Text 2 Anti-virus software and other preventative countermeasures
- •Unit IX Mobile phones and sms
- •What is sms?
- •How do you send and receive messages?
- •The future of mobile phones
- •Why people use mobile phones
- •Help always at hand: a mobile is a girl’s best friend
- •Unit X smart stuff
- •Smart stuff
- •Insert the missing information into the sentences
- •Is technology always best?
- •Unit 11
- •Internet
- •What exactly is the Internet?
- •What is cyberspace?
- •How did it begin?
- •The Internet can be divided into five broad areas:
- •Electronic mail
- •Information sites
- •The World Wide Web
- •4. Usenet
- •5. Telnet
- •Supplementary reading
- •Bluetooth
- •What is in a name? (the history of Bluetooth)
- •Sic (Special Interest Croup)
- •Used frequencies
- •Bluetooth ability
- •How is connection established?
- •Discoverable mode
- •Limited discoverable mode
- •Protection technology
- •Digital house
- •Text 5 the language of e-mail
- •1. Basic protocols in Internet and search in them
- •Tools of search in www
- •2. Tools of search
- •2.1 Thematic catalogues
- •Magellan
- •Virtual Library
- •Russia-On-Line Subject Guide
- •2.2. Automatic indexes
- •Alta Vista
- •Info seek
- •WebCrawler
- •Glossary
What exactly is the Internet?
The best way to think of the Internet, or Net as if is often called, is as a vast global network of networks connecting computers across the world. These networks range from government departments and industrial and educational communication systems down to the personal online service providers such as CompuServe, Delphi, etc.
At present, more than 33 million people use the Internet and over
three million computers worldwide are linked in. They use the Net for
transferring data, playing games, socializing with other computer users, and sending e-mail (electronic mail).
What is cyberspace?
Cyberspace is the term we give to this entire electronic domain. Whenever you are using one of the online services such as e-mail or the World Wide Web, you are in cyberspace.
Despite the confusing techno-jargon that surrounds it, the Internet is simple: computers talk to one another through a network that uses phone lines, cable, and fiber-optic lines.
How did it begin?
The Net was dreamt up in the late 1960s by the US Defense Department's Advanced Research Projects Agency which decided that, in the event of a nuclear attack, it needed a means by which messages could be sent and received even if phone lines were inoperative. In 1969, there was a network of just four mainframe computers. By 1972, the number had risen to 40. About this time the idea of the electronic mailbox was born, as users looked for a way of talking to each other electronically. By 1984 when the resources of the network were made available to academics, the Internet began to develop into the form we know it today.
The Internet can be divided into five broad areas:
Electronic mail
E-mail is much faster than traditional or snail mail because once the message is typed out, it arrives in the electronic mail box of the recipient within minutes or seconds. Anything that can be digitized -pictures, sound, video - can be sent, retrieved, and printed at the other end. This is efficient, convenient, and saves trees!
Information sites
This is perhaps the fastest growing area of the Internet as more and more people put their own information pages on line. One thing that computers do very well is process vast amounts of information very fast, so, by specifying a key word or phrase, the computer can then search around the Net until it finds some matches. These information sites are usually stored on big computers that exist all over the world. The beauty of the Net is that you can access all of them from your home, using your own PC.
The World Wide Web
The World Wide Web, usually referred to as WWW or 3W, is a vast network of information databases that feature text, visuals, sound, and even video clips. On the WWW you can do such things as go on a tour of a museum or art exhibition, see the latest images from outer space, go shopping, and get travel information on hotels and holidays. You can even view a hotel's facilities before deciding to book!