Text Compression :
Describe the difference between analog and digital data
Why do we need to compress data?
What are the 2 possible types of Compression
What type of compression can we use for TEXT files ?
Name 3 methods of Text Compression
Keyword Encoding
RLE Run Length Encoding
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Huffman Encoding
Topic 1 —System fundamentals
List 1 advantage and 1 disadvantage of parallel running
What makes a software system a legacy system ?
Describe one advantage and one disadvantage of using observations to gather information when planning a new system
Topic 6—Resource management - 6.1.1 - 6.1.8
A computer is to be used to play video games it has 1 GB RAM and a single processor - List 2 Problems / Limitations that the user will encounter
Describe the difference between interrupts and polling within an operating system
How does paging/swapping play a role in Virtual Memory
How does paging/swapping play a role in Virtual Memory
Topic 4 - Introduction to Programming and Data Structures
4.3.1 List 4 fundamental operations of a computer
How can a Computer perform complex calculations?
4.3.2 Distinguish between fundamental and compound operations of a computer?
4.3.3 Explain the essential features of a computer language.
What is a high level programming Language
4.3.4 Why do we need high level programming Language?
4.3.12 What is the purpose of a procedure / function in a program
4.3.5 What is the role of a compiler
Languages like C need compiled before can execute are all languages like this?
What is a virtual machine?
4.3.6 Define the terms Constant,Variable,Operator,Operand,Constant, Object
4.3.7 Define the operators >, >=, <, <=, MOD and DIV
Why do we have Constants in programming languages?
IB Formal Quiz Flash Cards
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Solutions
// FirstLetter(“CITY”) will return the first letter of the word “CITY”
// Elements are stored in an array called CITYNAMES
loop for C from 0 to 99
if FirstLetter(CITYNAMES[C]) = “D” then
output CITYNAMES[C]
endif
end loop
// assume REVIEWARRAY contains the data
// find the average review score of movie in col 2
MOVIESCORE = 0
loop J from 0 to 2
MOVIESCORE = MOVIESCORE + REVIEWARRAY[ J] [2 ]
end loop
OUTPUT ( "Average " + MOVIESCORE / 3)