Jacob has a text file open, and he is typing on the keyboard. What is the best description of how the changes are being implemented?
The original file is temporarily changed; the changes become permanent when he clicks "save."
The new version is kept in a special virtual space; the file is only changed when he clicks "save."
The information is stored on the clipboard:
O A copy is created with a new filename, which will overwrite the old one when he clicks "save."

Which of the following is a way the operating system prevents unknown or unauthorized users from accessing the system?

Assume the existence of a bankaccount class. define a derived class, savingsaccount that contains two instance variables: the first a double, named interestrate, and the second an integer named interesttype. the value of the interesttype variable can be 1 for simple interest and 2 for compound interest. there is also a constructor that accepts two parameters: a double that is used to initialize the interestrate variable, and a string that you may assume will contain either "simple", or "compound", and which should be used to initialize the interesttype variable appropriately. there should also be a pair of functions getinterestrate and getinteresttype that return the values of the corresponding data members (as double and int respectively).

Acompany is inviting design for its new corporate logo from its users. this is an example of ? a. crowdfunding b. crowdvoting c. crowdsourced design d. crowdtracking