Zusammenfassung der Ressource
Exam Questions June 2015
- Number Types
- Nibbles is the smallest
- Then bits is the next smallest
- Then bytes is the next biggest
- Then the next largest is kilobyte
- ASCII
- Character F is represented in binary by 110 0110
- Character G is represented in binary by 110 0111
- Bitmap
- Image which is in black and
white which is displayed in
0's and 1's
- 0's are black
- 1's are white
- Resolution can affect the
quality of the picture
- Picture quality can be affected by
the file type, e.g jpeg due to
compression of the file
- Programming
- Python is a programming language I am
familiar with
- Data Types
- Boolean is True/False
- Character is a single character
- Real data
- String is words joined
together within a sentence
- Integer is for positive
or negative numbers
- Data Structures
- 2D Array
- Algorithms
- An algorithm is a set of instructions that
will return an output
- Algorithms 2 could be written better because once it has
been matched it stops
- Purpose of algorithm 2 is it checks for a
specific value
- Variables
- variables can be labelled 'i' as its an
index for the array
- The variable 'matched'is to check a
specific value
- 'matched' is a boolean data type
- Software Development Life Cycle
- Waterfall Model/Waterfall
- Stage 1 is Analysis
- Stage 2 is Deisgn
- Stage 3 Implementation
- Stage 4 is Testing
- V-Shaped Model
- Spiral Model
- Incremental Model
- The basic model
- Prototyping
- Advantages
- Full-scale testing will crop up any problems
the code may have
- More robust, will make the code more
secure
- Gives early insight on future development
- Disadvantages
- Costs time and money
- Less time on the actual code itself