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Taking computers for granted.doc
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  1. Read and try to understand the given above text.

  2. What’s your opinion concerning software piracy? Will it exist always?

Thank you for your hard work!

5. Relax a bit

To be sure of hitting the target, shoot first, and call whatever you hit the target.

Programming laws:

  • Any given program when running is obsolete.

  • Any new program costs more and takes longer.

  • If a program is useful it will have to be changed.

  • If a program is useless it will have to be documented.

  • Any program will expand to fill available memory.

  • Program complexity grows until it exceeds the capabilities of the programmer who must maintain it.

  • Any non-trivial program contains at least one bug.

  • Axiom: human beings are unreliable. As a consequence, any system which depends on human reliability is unreliable. Hence, hardware and software are unreliable.

  • Tell a man there are 300 billion stars in the universe and he’ll believe you. Tell him a bench has wet paint on it and he’ll have to touch to be sure.

  • The average woman would rather have beauty than brains because the average man can see better than he can think.

It is a rather pleasant experience to be alone in a bank at night.

W. Sutton

My boyfriend keeps telling me I’ve got to own things. So, first I bought this car. And then he told me I oughta get a house. «Why a house?» «Well, you gotta have a place to park the car».

Julia Roberts

Life experience

Profession

A doctor, physicist, and politician were arguing about whose profession was the oldest.

«Of course mine», said the doctor, «because Eve was created from Adam’s rib, and that was a medical phenomenon».

«But before that order was created from chaos and that could be made only by physicist», said the physicist.

«Dear friends», noted the politician, but in the beginning someone had to create chaos …

Love

«You’re right», said a golfer to his wife, «I love golf more than I love you. But remember I love you more than I love tennis».

Birthday

Ann said proudly, «My grand grandfather doesn’t drink, smoke, eat meat, philander with women, gamble and swear, and tomorrow he is going to celebrate his 95th birthday!»

Jack looked at her surprisingly and asked: «How?!»

Airplane

The plane took off. Suddenly it shuttered when one of the engines blew up, then another one. The passengers were in a panic. A pilot asked them to keep quiet as it was nothing to worry about. Then he walked to the door of the aircraft, grabbed several packages, and handed them to the flight attendants. «Say», asked an alert passenger, «aren’t those parachutes»?

«Yes, they are», answered the pilot. «But you said there was nothing to worry about», went on the passenger. «There isn’t», replied the pilot as the third engine exploded. «We’re going to get help».

U NIT 7

1. Information for study

Internet

People always wanted to communicate and share information. That was the main reason for the development of computer network.

Computer network is a group of computers that can interact by means of a shared communication link. There are two types of network:

  • Local area network (LAN) is a network where computers are connected together directly, usually by cable. It is used in offices etc.

  • Wide area network (WAN) is a network of local area networks connected together. The connection might be a cable or a mixture of cable, fiber optic, and satellite connectivity.

Modem (abbreviation for modulate / demodulate) is a device that allows computers to communicate over ordinary phone lines. It converts digital computer data back and forth for use with analog phone line. There are two types of modems: internal and external. Internal means that modem goes inside your computer. External modem is outside your computer and must be plugged into it.

A server is a computer designed to provide various services for an entire network. It is typically either a workstation or a mainframe because it will usually be expected to handle far greater loads than ordinary desktop systems.

The roots of the Internet go to 1969, when the Defense Advanced Research Projects arm of the Department of Defense created ARPANET for research in networking. The project title was «Resource Sharing Computer Networks». The work centered around the problem in the Department of Defense – how to keep military sites in communication across the country in the event of a nuclear war.

In the beginning research was the main goal of the system. In 1994 an explosion of direct connections to the Internet occurs. Research is not any more the only purpose of Internet. The Internet experiences a steady growing process. Not only universities, research companies and other organizations became part of the Internet, but many of small businesses and homes were connected.

The estimate for year 2000 was 40 million people connected to the Internet and the large majority were home connections in more than 50 countries.

The Internet provides many services. Among them: