CPU stands for:

a. Central Processing Unit
b. Computer Processing Unit
c. Computer Protection Unit
d. None of these

Explanation: The CPU is the primary component of a computer that performs most of the processing inside a computer.

Home Key uses for:

a. Moves the cursor to the beginning of the document
b. Moves the cursor to the beginning of the paragraph
c. Moves the cursor to the beginning of the screen
d. Moves the cursor to the beginning of the line

Explanation: The Home key is typically used to move the cursor to the beginning of the current line of text.