What are the advantages and disadvantages of digital computers and analog computers?

Digital

  • Advantages
    • exact reproducible results of calculation
    • insensitive to drift, component aging, temperature, etc.
  • Disadvantages
    • all data encoded to nearest representable value
    • slow and expensive when implemented with same technology as analog computer

Analog

  • Advantages
    • continuous representation of all data within the range of the machine
    • fast and inexpensive when implemented with same technology as digital computer
  • Disadvantages
    • results of calculations may not be reproducible due to undetectable setup errors
    • sensitive to drift, component aging, temperature, etc.

etc., etc., etc.