When you ask for similarities and differences, you must have a second target to compare to.
what are similarities and differences between linux and unix?
That depends entirely on what Operating System the router is running
similarities
Usually comparing brings about similarities. Contrasting brings differences.
differences: britain better Similarities: education
What are the similarities and differences between the Hoyt and Burgess
general similarities in appearance
There are very few similarities between Windows 98 and Windows NT, other than a similar interface.
similarities and differences between ordinary fractions and rational expressions.
ACA and NAADAC codes of ethics. Identify similarities and differences
The term is "contrast" when items are observed or defined by their differences. The word "compare" is used for observed similarities, or more generally for both similarities and differences.
differences.