Paper 1- Pseudocode

procedure Mean.
number of marks=0
total=0
Do while You're still got marks
Get mark
Number of Marks=Number of marks+1
Total= Total+mark
End while
Average= total/numbermarks
End

9.1 Program

Visual Basic Code for Program 9.1

Private Sub hsbRed_Scroll (...) Handles hsbRed.Scroll
    Me.BackColor = ColorTranslator.FromO1e(RGB(hsbRed.Value, hsbGreen.Value, hsbBlue.Value.))
End Sub

Private Sub hsbGreen_Scroll (...) Handles hsbGreen.Scroll
    Me.BackColor = ColorTranslator.FromO1e(RGB(hsbRed.Value, hsbGreen.Value, hsbBlue.Value.))
End Sub

Private Sub hsbBlue_Scroll (...) Handles hsbBlue.Scroll
    Me.BackColor = ColorTranslator.FromO1e(RGB(hsbRed.Value, hsbGreen.Value, hsbBlue.Value.))
End Sub

Private Sub hsbBlue_scroll (ByVal sender As System. Object, ByVal e As System.Windows.For (...)
    Call ShowFormColour( )
End Sub

Sub ShowFormColour( )

End Class

Me.BackColor = ColorTranslator.FromO1e(RGB(hsbRed.Value, hsbGreen.Value, hsbBlue.Value))

Private Sub hsbRed_Scroll (...) Handles hsbRed.Scroll
    Call ShowFormColour( )
End Sub

Private Sub hsbRed_Scroll (...) Handles hsbRed.Scroll
    Call ShowFormColour( )
End Sub

Private Sub hsbRed_Scroll (...) Handles hsbRed.Scroll
    Call ShowFormColour( )

Procedures and functions.

What is a procedure?
A procedure is a seperate section of code which performs one or more specific tasks and is identified by having a name.


Four types:

• Event 
• Sub
• Function
• Property

Why use procedures?

1. Avoid repeating code. 
2. Make the code more readable
3. Help in debugging a program
4. Use a procedure in other programs
5. Pass parameters.

What is a function?

A procedure could be considered as something which is a set of commands which do not return a value.

Social media.

WIKI, Blogs, RSS and Micro Blog's.

A WIKI is software that runs a wiki or a website that allows users to collaboratively create and edit web pages using a web browser. For example; Wikipedia.

A Blog is a  web based mechanism to allow discussion on a topic on the web. For example; Blogger.

A RSS or 'Real simple syndication' is a group of web feed formats used to publish frequently updated sites and topics. For example; Twitter.

A Micro Blog is different from a traditional blog because its content is typically much smaller.

Binary code.

Examples of binary.
For 94

128 . 64 . 32 . 16 . 8 . 4 . 2 . 1
  0      1     0     1    1   1   1   0


 For the Binary Number 2.5

8 . 4 . 2 . 1 . 1/2 . 1/4 . 1/8
0   0   1   0     1      0      0

0010100 - This Byte is called the mantissa and shows the number with the decimal placed moved to then end.

0000001 - This Byte is called the exponent and shows how many places the decimal place has been moved.

8 bits is usually called a "byte",
and a  "nybble" is 4 bits;

System processors

Single - user OS a single user OS is a system designed for use on a computer that will allow a single user at a time.

Multi - user OS, simular to the single user OS, the multi user OS allows multiple user to access and operate the system at any given time.

Batch Processing is a technique that uses a single program to process many individual jobs, tasks, or requests.

Real Time is an OS that guarantees a certain capability within a specified time period. 

Revision from test.

Disk formatting zeros the disk. Formats for a particular system. E.g Ntfs

Hardware driver allows a piece of hardware to be used and interact with the computer.

File compression shrinks files. Because you either want to save hardrive space or emailing.

Virus checker uses a registered list of virus of all known virus known around the world which your computer downloads which scans your hardrive of those known files.