A navigation bar (or navigation system) is a section of a graphical user interface intended to aid visitors in accessing information. Navigation bars are implemented in file browsers, web browsers and as a design element of some web sites.
Answer:
here is what I think!
Explanation:
G-mail is:
- secure
- easy to use
- fast
- can be used to sign in anywhere!<u>(including brainly)</u>
- you don't need to pay when creating one
- can help you in billing and buying apps and their paid product
- <em><u>you </u></em> can use it because <em>why no!</em>
- some websites need G-mail to be used
thats why you should use G-mail
tell me if you have an idea!
Answer:
Explanation:
An Access Control Matrix ACM can be defined as a table that maps the permissions of a set of subjects to act upon a set of objects within a system. The matrix is a two-dimensional table with subjects down the columns and objects across the rows. The permissions of the subject to act upon a particular object are found in the cell that maps the subject to that object.
Summary
The rows correspond to the subject
The columns correspond to the object
What does each cell in the matrix contain? Answer: Each cell is the set of access rights for that subject to that object.
Answer:
Polymorphism means that a variable of supertype can refer to a subtype object.
Explanation:
For example, in Python programming language, a function that accepts an iterable object uses the concept of polymorphism because that function can accept strings, lists, tuples as arguments.
