H SDD - Design & Implementation (revision)

An actual parameter is used in the definition of a subprogram, while a formal parameter is used in the call statement.

An actual parameter is the value passed into the subprogram, while a formal parameter is the identifier used in the subprogram definition.

An actual parameter is always a number, while a formal parameter is always a string.

There is no difference between actual and formal parameters.

A function always displays values on a screen.

A procedure always returns a value.

A function returns a value, while a procedure performs a task such as displaying values.

Neither functions nor procedures use parameters.

Tomat

Tomato

Tomato &

Toma

chr

ord

mod

ascii

It returns the quotient of division.

It calculates the remainder after division.

It converts a character to ASCII code.

It reads data from a file.

Get filename from keyboard

Open filename in write mode

If Students[counter].grade == "A" then do

Write row([Students[counter].forename, Students[counter].surname])

Linear search

Find minimum and maximum

Count occurrences

Binary search

Find Maximum

Find Minimum

Linear Search

Count Occurrences

It always stops after finding the first match.

It can use either fixed or conditional loops.

It only works for sorted arrays.

It does not require a search value.

Set occurrences to 0, loop through array, increment occurrences if condition is met, display result

Set occurrences to 1, loop through array, increment occurrences for every value, display result

Loop through array, increment occurrences for every value, display result

Set occurrences to 0, loop through array, display result