Which of the following statements about global variables is true? 1.A global variable is accessible only to the main function. 2.A global variable is declared in the highest-level block in which it is used. 3.A global variable can have the same name as a variable that is declared locally within a function. 4.If a function contains a local variable with the same name as a global variable, the global variable's name takes precedence within the function.

Write a program that defines symbolic names for several string literals (chars between quotes). * use each symbolic name in a variable definition. * use of symbolic to compose the assembly code instruction set can perform vara = (vara - varb) + (varc - vard); ensure that variable is in unsigned integer data type. * you should also further enhance your symbolic logic block to to perform expression by introducing addition substitution rule. vara = (vara+varb) - (varc+vard). required: debug the disassembly code and note down the address and memory information.

What are the different parts of computer

Many everyday occurrences can be represented as a binary bit. for example, a door is open or closed, the stove is on or off, and the fog is asleep or awake. could relationships be represented as a binary value? give example.