Computer Protection

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Term Paper Title	Computer Protection
# of Words	2365
# of Pages (250 words per page double spaced)	9.46

Computer Protection

Computer Protection

     About two hundred years before, the word "computer" started to appear in
the dictionary. Some people even didn't know what is a computer. However, most
of the people today not just knowing what is a computer, but understand how to
use a computer.
     Therefore, computer become more and more popular and important to  our
society. We can use computer everywhere and they are very useful and helpful to
our life. The speed and accuracy of computer made people felt confident and
reliable. Therefore, many important information or data are saved in the
computer. Such as your diary, the financial situation of a oil company or some
secret intelligence of the military department. A lot of important information
can be found in the memory of computer. So, people may ask a question: Can we
make sure that the information in the computer is safe and nobody can steal it
from the memory of the computer?
     Physical hazard is one of the causes of destroying the data in the
computer. For example, send a flood of coffee  toward a personal computer. The
hard disk of the computer could be endangered by the flood of coffee. Besides,
human caretaker of computer system can cause as much as harm as any physical
hazard. For example, a cashier in a bank can transfer some money from one of his
customer's account to his own account. Nonetheless, the most dangerous thief are
not those who work with computer every day, but youthful amateurs who experiment
at night --- the hackers.
     The term "hacker "may have originated at M.I.T. as students' jargon for
classmates who labored nights in the computer lab. In the beginning, hackers are
not so dangerous at all. They just stole computer time from the university.
However, in the early 1980s, hackers became a group of criminals who steal
information from other peoples' computer.
     For preventing the hackers and other criminals, people need to set up a
good security system to protect the data in the computer. The most important
thing is that we cannot allow those hackers and criminals entering our computers.
It means that we need to design a lock to lock up all our data or using
identification to verify the identity of someone seeking access to our computers.

     The most common method to lock up the data is using a password system.
Passwords are a multi-user computer system's usual first line of defense against
hackers. We can use a combination of alphabetic and number characters to form
our own password. The l...

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