BASIC COMPUTER CONCEPTS
COMPUTER SYSTEM TYPES
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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one computer cannot be used by user, easier spread of viruses
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adds reliability, faster network expansion, allows centralised backup
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black and white are a bit more expensive, colour are a lot more expensive than ink jet.
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turn on heating when on way home, turn on music using speech
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Detailed explanation-1: -Ever had a virus on your home or work computer? Your web server is no different. It too can be infected with a virus.
Detailed explanation-2: -It is important to note that a virus cannot be spread without a human action, (such as running an infected program) to keep it going. People continue the spread of a computer virus, mostly unknowingly, by sharing infecting files or sending e-mails with viruses as attachments in the e-mail.
Detailed explanation-3: -As a computer virus is only code, it cannot physically damage computer hardware. However, it can create scenarios where hardware or equipment controlled by computers is damaged. For example, a virus may instruct your computer to turn off the cooling fans, causing your computer to overheat and damage its hardware.
Detailed explanation-4: -Typically, computer viruses spread through malicious online downloads, infected email attachments, or by plugging in infected hardware like an external flash drive (USB stick). Computer viruses can spread through almost any method of file sharing, as long as the virus can avoid detection by antivirus programs.