DIFFERENCE BETWEEN VIRUSES AND SPAM

A)Computer viruses B)SPAM
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A.1) their authors are human
programmer who tempt
to workaround antiviruses.
B.1)Senders are humans
who tempt to avoid
characteristics which
denounce their spams.
A.2) tempt to infect as many
as possible systems.
B.2)spammer tempt to
send their messages to
as many as possible
Internet users.
A.3) may cause lot of damage
in the infected system.
B.3)Consumes a large part
of the Internet
bandwidth, and causes
a considerable
productivity loss.
A.4) it introduce itself
discreetly in systems.
B.4)they are generally
unsolicited