7c Virus Alert 7d Whats the password

7c Virus Alert7d Whats the passwordProfessor Harold SalgadoVocabulary a PCdamagecrashspread infect access

Listening A1 John von Neumann 2 Frederick Cohen 3 Basit and Amjad Alvi 4 Melissa and Love bug 5 Sven Jaschan6 Trojan Horses

Bcreated the first ever computer virus.predicted computer viruses in 1940.allow other people to acces your computer.were famous viruses in 1999 and 2000.wrote the Sasser Worm virus.first used the word virus in 1983.

Use of articles: a, an, the, no articleWe use a or an:When we dont know, or isnt important, wich one.With jobs.To talk about a person or thing for the first time. We use the :To talk about the same thing or person for the second/third/fouth, etc. time.When theres only one (or one only in a particular place).With superlatives.

We dont use the article :For most towns, cities, countries and continents.To talk about people or things in general.For some public places(school, hospital, university, college, prison) when we talk about what they are used for in general.

We use the with public places when we talk about the building.

7D Whats the password