Unit 3 10/1

Question 1

immediate addressing

Answer 1

Operand = actual data stored

Question 2

Direct addressing

Answer 2

Operand = address of data

Question 3

Indirect addressing

Answer 3

Operand = address to the address of data

Question 4

Indexed addressing

Answer 4

Operand = start index of array + index register

Question 5

Waterfall benefits

Answer 5

Simple + easy to understand
Straightforward to manage
Each stage is separate and well defined

Question 6

Waterfall drawbacks

Answer 6

Lack of user involvement
High risk + low flexibility
Required changes often mean restarting
No working software produced until late in the cycle

Question 7

When to use Waterfall

Answer 7

No ambiguous language
Well understood technology
Clear + well defined task