My homework

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  CAT (computerized axial tomography) A
  method of getting a three-dimensional
  image of the inside of the body. CAT scans
  are most useful in seeing hard substances
  such as bones.
  
• computer application Instructions that computer
  hardware (a computer’s physical
  parts) uses to let us perform specific tasks.
  
• computer database A collection of related
  records stored in a computer.
  
• embedded system A computer that is contained
  within another device.
  

• fMRI (functional magnetic resonance
  imaging) A method of getting a picture of
  the inside of the body that shows chemical
  changes or the flow of fluids in a body
  part as it works. It is used on soft tissue
  such as the brain.
  
• imaging device A piece of equipment used
  to get a picture (image) of something that
  is not normally visible, such as a person’s
  heart. Examples include CAT, MRI, and
  PET scanners.
  
• laparoscope A thin, lighted tube that is
  inserted into the abdomen during laparoscopic
  surgery. It contains a tiny camera
  that projects images onto a monitor.
  laparoscopic surgery A method of operating
  in which the surgeon makes a tiny cut
  to insert a lighted tube (a laparoscope)
  into the abdomen. The laparoscope projects
  an image onto a monitor. The doctor
  watches this image while operating.
  
• MRI (magnetic resonance imaging) A
  method of getting a picture of the inside
  of the body. MRIs are mainly used to
  examine soft tissue, such as the brain.
  
• PET (positron emission tomography) A
  method of getting a picture of organs that
  shows them while they are working.
  
• record (database) A collection of related
  data stored in a database. An example of a
  record would be all of the information on
  a single hospital patient.
  vital sign A piece of information about a
  person’s body, such as his or her heart rate
  or blood pressure.
  
• vital signs monitor A device that keeps
  track of a person’s vital signs, such as
  blood pressure and breathing rate. This
  information is displayed on a screen.
  virtual reality An artificial environment
  created to place a person in an alternate
  world.