1.............................
In 1938, a Hungarian called Laszlo Biro, who was working for a magazine, came up with the idea of using thicker (a)....................Traditional ink took too much time to dry and was very inconvenient. In 1940, he emigrated to Argentina, where he settled the first (b)............... manufacturing this useful device. Since that time it has become so popular that it's hard to imagine life without it. Everybody uses this thing - pupils to write their exercises, housewives to do crosswords, students to make notes.
2.............................
In 1971, a computer engineer named Rav Tomlison invented the method for sending simple messages to another person across the (c) ...................He chose the sign @ to inform which user was 'at what computer. On the left of this sign you have the user's login name, and after 'at' goes the name of his or her host server. The first message was sent between two computers that were sitting in the same room. Nowadays, this method is commonly used and is considered to be the cheapest means of (d)....................
3. ......................
This instrument was invented in 1876. It has a (e).............. into which you speak and an(f)..................... which changes the electromagnetic signals into sound. It is the most widely used device enabling people to stay in touch no matter how far they are, since the electric(g).................... can be transmitted via satellites to all parts of the earth. All you have to do is to dial the number of the person you wish to speak to.
daje najjj :)))
