"To preform specific useful computing tasks, like word processing and calculation" is the correct answer. This is the whole purpose of system software. The third answer is some other type of software(third party software?) and the fourth answer is most likely a compiler. Those are the easiest to take off. The second could also work.
The two answers I would go with are the first and the second.
You can carfully wedge something in between the key and gently pull up
Like when a seed drops on the ground, and a bee come to take some honey. It sticks to the bee and where the bee goes, the bee will rub it off and the seed will start to grow.
Answer:
Selection of answers:
Yes, she can navigate the window and do simple editing.
Yes, she can use this application for free and navigate the window.
No, her document is “Read-Only,” so she cannot navigate the window.
No, her application has limited features and she cannot access the document.
Answer is: No, her document is “Read-Only,” so she cannot navigate the window.
Answer:
IBM Automatic Sequence Controlled Calculator (ASCC)
