Excel-charts

~There're about 10 types charts
-bar
-column
-line
-pie
-area
-scatter
-stock
-surface
-radar
-combo


~benefits
It'll be more easier to read information from charts


~features need to be included to make a chart useful
-title
-key
-colour
-labels
-tables
-size

code breaking exercise

~phonic alphabet

  can you solve an easy code ?

~numbers stand for letters

  the jungle book

~reverse the alphabet

  a scouts honour is to be trusted

~braille

  magic fingers

~Morse code

  I need a map of the area immediately

data

Why is data important?

there are many information in it.

Why should we protect it?

An unsecured system is at threat of hackers altering, deleting, or corrupting your data.

What could happen to data if we don’t take precautions to protect it?

Hackers will encrypt it, making it incomprehensible to anyone who does not hold the ‘key’ to decode it.

exercise on 2.4

01010011 01000001 01011001 
 
01011001 01000101 01010011

cyber forensics

What is cyber forensics?
     computer forensics , is the application of scientifically proven methods to gather, process, interpret, and to use digital evidence to provide a conclusive description of cyber crime activities.  Cyber forensics also includes the act of making digital data suitable for inclusion into a criminal investigation.
How is it use in an investigation?
     The purpose of computer forensics techniques is to search, preserve and analyse information on computer systems to find potential evidence for a trial.


and I didn't use it before...