OPTIONS
Theory resources
Programming resources
Exam papers
Nice external links
Teach-ICT
A lot of information on IT related theory and practical material for Word,
Excel and Access - even has some games and video tutorials.
Hip2B²
Amazing site on science and technology.
PC Magazine
Latest news regarding computers and technology
CNN Technology
Latest technology news
|
PAT!
See the departmental guidelines
(information on topic and how it will be assessed):
ITPAT2008.pdf
(PAT document in English)
PATITAFR2008.pdf
(PAT-dokument in Afrikaans)
Also see the PAT page for more ideas
and information.
What should you know about Delphi?
Grade 10
General / Introduction Programming environment
GUI
Event Handlers
Events such as OnClick, OnClose,
OnShow, OnMouseMove
Components: Edit, Checkbox, Radio Group, Label, Panel, Listbox, RichEdit,
Memo, BitButton
Form class
Data Types and variables
Integer, Real, Character
String, Boolean
Scope of variables
Input & Output
InputBox
Input and output components and
properties: Edit, Checkbox, Radio Group, Label, Panel, Listbox, RichEdit
and Memo
Formatting output in RichEdit using tabs and new line / return characters
Operators & Operations
Mathematical: +, -, *, /, Div, mod
Relational: <, >, =, <>, <=, >=
Boolean: AND, OR, NOT
Precedence and brackets
Simple string manipulation: Length, Pos, Concat (+), Uppercase, Copy,
Delete, Insert, Val
Includes data type conversion such as IntToStr, StrToInt, StrToFloat,
StrToIntDef, FloatToString, FloatToStrF, to be able to do mathematical and
string manipulations
Control structures
Sequential
Selection
- Single selection IF
then
- Double selection IF
then
else
- Multiple selection Case
Repetition
- Counting For
do
- Conditional While
do
- Repeat
until
Classes and objects
Form Class
Methods (functions and procedures)
Mathematical such as sqr, sqrt, round, trunc, abs, random, power, min,
max, frac, int, odd, dec, inc, etc .
Modules
- Simple user defined functions and procedures using parameter passing
e.g.
CalcInterest(12) if 12% interest should be added, GetMonthName(6) to
determine the name of month number 6. (not reference parameters)
Call functions and procedures
GUI
IDE Delphi
Defensive programming
Meaningful error messages to user e.g. message dialogue boxes
Error checking techniques
- Check that data has been entered / compulsory fields
- Check that the right type of data has been entered e.g. Real or Integer
using VAL-procedure
- Check that data is valid (falls between a certain range)
- Use the MaskEdit to ensure valid data (for use in projects only)
Algorithms / problem solving and fundamental programming concepts
Swop two values
Determine smallest, largest value of more than two values
Isolate digits in an integer value
Determine whether a number is a prime number, even, odd number
Determine whether a number is a factor of another number
Grade 11
Data structures
Database with two tables
1 D arrays
Classes and Objects
Control structures
Sequential
Selection (nested)
Repetition (nested)
- Conditional While
do
- Repeat
until
Including sentinel value (flag)
1-D Arrays
- Declare
- Basic I/O manipulation
- Simple sort using a method in a class
- Sequential search (including use of sentinel value) using a method in a
class
- Simple calculations such as calculating average, sum
Database and programming
Setup ADO connection
Use tables in database and manipulate records and fields through Delphi
code using SQL statements
Find a specific record in a table using Locate
Classes and objects
Creation of classes and class design
Coding methods (including constructors, get/set, toString) to perform
calculations or manipulate the attributes of an object.
GUI
Delphi IDE
Events and event handlers
Components as specified in Grade 10 as well as PageControl with pages,
DBGrid
Defensive programming
Try
Except
Try
Finally
Data validation, e.g. checking for presence, range, uniqueness, length,
type and check-digit.
Return meaningful error messages
Operations
Sting manipulation: All methods used in Grade 10 as well as Insert, Delete
Algorithms / problem solving
Data validation
Grade 12
Data structures
Text files
Arrays 2D
Classes and Objects
Database at least 2 tables
Array of objects (1 D)
Database and programming
Setup ADO connection
Use tables in database and manipulate records and fields through Delphi
code using SQL statements
Classes and objects
Create arrays of objects
Create classes using inheritance (for implementation in 2009)
Create arrays of objects of parent and inherited classes (for
implementation in 2009)
GUI Events and event handlers
Delphi IDE
Events and event handlers
Components
OnExit events to be used with error control
Operations
Text files:
AssignFile
Reset / Rewrite
Readln / Write / Writeln
CloseFile
While not Eof
Import data from text file
Export data to text file
String manipulation
2D arrays
Simple processing e.g. row and column totals
Array of object manipulation
Algorithms and problem solving
Data validation and defensive programming using components, programming
techniques specified in Grades 10 and 11 as well as code in OnExit events.
Design own algorithms to solve problems
(Taken from LPG Document, Jan. 2008) |
