Mixed

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Across
  1. 3. created by computer technology and appearing to exist but not existing in the physical world
  2. 5. a situation in which different elements are equal or in the correct proportions
  3. 7. Used to describe something very unique
  4. 8. barrier that acts as a security system to protect computer systems and networks from outside connections and untrusted networks
Down
  1. 1. An expression to show surprise, disgust, anger
  2. 2. the central principle or part of a policy, system,etc, which other things depend on
  3. 4. to add to something in a way that improves it or makes it more attractive
  4. 5. to make a record of the address of a web page on your computer so that you can find it again easily
  5. 6. unable to think about or pay attention to somethingļ¼›unable to concentrate