introduction to programming pmt flashcards

Question 1

what are the three main programming constructs used in procedural programming

Answer 1

-sequence
-selection
-iteration

Question 2

how does assembly language differ from machine code

Answer 2

assembly language uses mnemonics rather than binary.one line in assembly language is equal to one line in machine code

Question 3

what is the function of STA

Answer 3

storing the value in the accumulator at the given memory address

Question 4

what is the function of BRP

Answer 4

branches to a given address if the value in the accumulator is positive
it is a conditional branch

Question 5

describe how selection works

Answer 5

a certain block of code is run if a specific condition is met v, using IF, ELSE IF and ELSE statements

Question 6

how do variables and constants differ

Answer 6

the value of a constant cannot be edited by the program during execution while the contents of a variable can be changed

Question 7

when might constants be used

Answer 7

for values that do not need to be changed or to prevent a value from being accidentally changed

Question 8

define what is meant by a function

Answer 8

a named block of code that performs a specific task and must always return a single value

Question 9

what is the role of the MOD function

Answer 9

MOD is used to fin the reminder when the number is divided by another

Question 10

what are relational operators used for

Answer 10

to make comparisons between two values and produce a result of either TRUE OR FALSE

Question 11

What is the function of the == operator

Answer 11

used to check whether a value is identical to another

Question 12

give three boolean operators

Answer 12

AND,OR,NOT

Question 13

What programming structure is used when a certain section of code needs to be executed while a certain condition remains true

Answer 13

iteration=specifically in a WHILE LOOP