Question

1. Answer the following questions (1/2 pt ea):

What are the two parts of an Instruction in the Pep/9?

1. Match the following items (1/2 pt ea):

Assignment		Selection
		Source Code

-- Allows a choice, uses a If-Then or If-Then-Else statement.

--Higher-level code that must be converted to Machine Code to execute.

--Places a value into a variable.

3. Answer the following questions (1/2 pt ea):What is the Assembly mnemonic to add a value to the A Register?

1. What is the Assembly mnemonic to load a word to the accumulator?
2. In Assembly, what is a name given to to a memory location, which can then be used as an operand?
3. In Pseudocode, what words are often used to indicate Input and Output (Hint, two answers)?
4. What do we call an expression, that when evaluated, is either True or False?
5. A language that allows us to express algorithms, but is not a real computer language?

Answer 1

Answer 1) The two parts of an instruction are Opcode and Operand

Answer 2) Assignment = Places a value into a variable

                   Selection = Allows a choice, uses a If-Then or If-Then-Else statement

                   Source Code = Higher-level code that must be converted to Machine Code to execute.

Answer 3) 1. The Assembly mnemonic to add a value to the A Register is ADD.

                  2. The Assembly mnemonic to load a word to the accumulator is LDA .

                 3. Effective Address is the name given to a memory location which can be used as an operand.

                 4. In Pseudocode words that indicate Input and Output are :-

           Input: READ, GET.

                   Output: PRINT , SHOW

              5. Boolean Expressions

              6. Natural Language