Lab 03

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Lab 03

• Computer Benefits and Risks

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Objectives

• Develop a good understanding of
• Benefits of computer
• Risks involved in using computer

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How do computer benefit society?

• Socializing
• News
• Education
• Business
• Manufacturing
• Banking
• Shopping
• Travel
• Embedded Systems

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How to avoid computer related health risks?

• Computer offers uncountable benefits but the
  benefits come with associated risks
• People experience health problem related to
  computer use.
• Eye strain
• Musculoskeletal strain such as back pain and many
  more
• It is important to take frequent breaks to rest
  your eyes and move your muscles.

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How to avoid computer related health risks?
Continued

• Adequate lighting and ventilation is important
• Work areas should be safe

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How does computer effect environment?

• Millions of old computers are discarded every
  year.
• Billions of floppy drives, CDs, DVDs, ink
  cartridges end-up in landfills
• They contain toxic materials and if not disposed
  off properly can damage the environment like
  contaminating the ground water.

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How does computer effect environment? Continued

• We all shall take some simple steps to have a
  positive effect on environment
• Recycle consumable products such as paper.
• Use electronic document wherever possible
• Refill/recycle printer ribbons, ink cartridges
• Donate your old computer to charitable
  organizations

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How can I protect my computer from intrusion?

• Hackers use various technologies to gain
  unauthorized access to computers via network.
• Some tips to avoid this
• Use encryption software
• Use a firewall when connected to internet
• Use router to filter out unauthorized network
  traffic
• Activate encryption on wireless networks

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How can I protect my computer from viruses?

• Malicious code
• Computer viruses
• Trojan horse
• Worm
• .
• To protect your computer from malicious code you
  can
• Install anti-virus software and keep it
  up-to-date.
• Make sure a file is reputable before downloading
  it.
• Never open an attachment unless you are sure from
  whom it is.

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How can I protect my privacy online?

• Keep the following guidelines in mind
• Do not reveal your email address to any
  organization unless you need it.
• Be careful about posting your physical address
  and phone numbers in online public forums,
  bulletin boards etc.
• Be wary about sharing information about your
  family and friends.
• Be wary of online surveys.
• After using a public computer, make sure you
  sign-off, log-out, delete temporary internet
  files.
• Provide minimum amount of information wherever
  possible.

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How can I protect my privacy online?
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How can I keep informed about technology related
issues?

• Numerous sources provide access to such
  information
• Computer publications (Example PC World, CNET
  news, Computerworld)
• Mailing lists and RSS feeds.
• Professional organizations (example ACM, IEEE).
• Consumer reviews (example epinions.com,
  consumerreports.org).
• Computer company websites.
• Laws, policies and regulations.