Which of the following is true about operating system.

a. acts as an intermediary between the computer user and the computer hardware.

b. program that manages the computer hardware.

c. provides a basis for application progra

Which action is usually used to select an option in a web site menu?

Electronic cover letters should still follow a business letter format, even though e-mail is a less formal type of communication. a. Trueb. False

If s=abcd is a string defined over Σ = {a, bc, d}then reverse of s is dcba. Δ True Δ False

What types of operating system are use in organizations

Which of the following is true about database queries? O A. Queries consistently display the results from the first time it was run. O B. Queries can only be used once and need to be recreated each time new data is entered. C.

Write a program whose input is a character and a string, and whose output indicates the number of times the character appears in the string. Ex: If the input is: n Monday, the output is:

Sandra wants to have her new technology up and running as soon as possible. She is looking for a tool that she can download and use right away. She is evaluating- operating expenses templates avaliability features

What symbol is used for an assignment statement in a flowchart? Answer a) processing b) I/O c) parallelogram d) diamond

Carlita is writing a poem, but the Ribbon keeps distracting her. What is the best option for her? A. Collapse the Ribbon to hide it from view B. Use notebook paper C. Use proper ergonomics for proper eye placement D. Minimize the whole document

2. Write a program in C+ + that can accept an integer between 0 and 999 billion and output the number by separating thousands by commas. For example, if the input is 1235468 then the output should be 1,2354,468.