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AQA A LEVEL COMPUTER SCIENCE Study guides, Class notes & Summaries
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AQA A-LEVEL COMPUTER SCIENCE EXAM NEWEST TESTBANK 2024 WITH ACTUAL QUESTIONS AND CORRECT ANSWERS|ALREADY GRADED A+
- Exam (elaborations) • 128 pages • 2024
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AQA A-LEVEL COMPUTER SCIENCE EXAM NEWEST 
TESTBANK 2024 WITH ACTUAL QUESTIONS AND 
CORRECT ANSWERS|ALREADY GRADED A+
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AQA A-LEVEL COMPUTER SCIENCE EXAM NEWEST TESTBANK 2024 WITH ACTUAL QUESTIONS AND CORRECT ANSWERS|ALREADY GRADED A+
- Exam (elaborations) • 128 pages • 2024
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AQA A-LEVEL COMPUTER SCIENCE EXAM NEWEST TESTBANK 2024 WITH ACTUAL QUESTIONS AND CORRECT ANSWERS|ALREADY GRADED A+
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AQA A-LEVEL COMPUTER SCIENCE 7517/1 PAPER 1 QUESTIONS AND CORRECT ANSWERS VERIFIED BY EXPERTS |ACCURATE ACTUAL EXAM WITH FREQUENTLY TESTED QUESTIONS WITH RATIONALE |GUARANTEED PASS |A+ GRADED |LATEST UPDATE
- Exam (elaborations) • 56 pages • 2024
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AQA A-LEVEL COMPUTER SCIENCE 7517/1 PAPER 1 
QUESTIONS AND CORRECT ANSWERS VERIFIED BY 
EXPERTS |ACCURATE ACTUAL EXAM WITH FREQUENTLY 
TESTED QUESTIONS WITH RATIONALE |GUARANTEED 
PASS |A+ GRADED |LATEST UPDATE
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AQA A Level Computer Science Unit 6 Latest Exam Fully Solved 2024.
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Serial data transmission - Answer Bit are sent one after another along the same data line. Only one line is needed to transmit data in one direction. 
 
Parallel data transmission - Answer Several bits are sent simultaneously along separate lines or channels. This means that an 8-bit block of data will require 8 data channels. 
 
Problems with parallel data transmission - Answer Skew: 
- As each individual wire has different properties, bits travel at slightly different speeds and produces...
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AQA A-level computer science unit 4 Test Questions And Actual Answers 2024.
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What is hardware? - Answer The electrical or electro-mechanical parts of a computer 
 
What is software? - Answer Software comprises all of the programs that are written to make computers function. 
 
What is system software? - Answer System software is the software needed to run the computer's hardware and applications 
 
What is an operating system? - Answer Software that lies between application software and hardware. 
 
What are utility programs? - Answer Utility software is desig...
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GCSE AQA Computer Science Paper 2 Exam Fully Solved 2024
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computer - Answer machine that processes data 
 
computer system - Answer consists of hardware and software that work together to process data / complete tasks. 
 
hardware - Answer physical components of a computer e.g. (cpu, motherboard, monitor) 
 
software - Answer programs that a computer system runs e.g. (word processors, web browsers, email clients, games) 
 
embedded systems - Answer computer systems built into other devices 
 
what are embedded systems often used as? - Answer ...
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AQA A Level Computer Science Post Exam With All Correct Solutions 2024.
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Analysis - Answer Gather information from users about what happens now and what the new system is required to do 
 
Design - Answer How will the new system meet its requirements? Input, Output, Processing and Storage designed 
 
Implementation - Answer Building the new system. In order to be responsive to changing user needs, prototypes are often used. 
 
Testing - Answer It is important to test that the system performs as expected. Different test strategies are used with test plans duri...
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A-Level AQA Computer Science Paper 2 Training Exam And Answers Graded A+ 2024.
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Baud Rate - Answer The maximum possible number of signal changes that can occur in a wire per second. 
 
Bit Rate - Answer The number of bits that can be sent down a wire per second. 
 
Integer - Answer A whole number that can be positive, negative or zero. 
 
Examples: -3, 0, 7, 2013588. 
 
Natural (Number) - Answer A whole number that is either positive or zero. 
 
 
Examples: 0, 1, 2, 100, 67238. 
 
Rational (Number) - Answer Any number that can be represented as the fraction 'a/b...
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AQA A Level Computer Science 5 - Fundamentals of data representation Study Guide Exam With Solved Answers 2024.
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Natural number - Answer A positive whole number including zero. 
 
Integer - Answer Any whole positive or negative number including zero. 
 
Rational number - Answer Any number that can be expressed as a fraction or ratio of integers. 
 
Irrational number - Answer A number that cannot be represented as a fraction or ratio as the decimal form will contain infinite repeating values. 
 
Real number - Answer Any positive or negative number with or without a fractional part. 
 
Ordinal numb...
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AQA A Level Computer Science Key Terms Exam And Correct Answers 2024.
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Absolute Error - Answer The difference between the actual number and the nearest representable value. 
 
Abstract data type (ADT) - Answer A data type whose properties are specified independently of any particular programming language. 
 
Abstraction - Answer Representation that is arrived at by removing unnecessary details. 
 
Aggregation - Answer Relationship between two object types in which one object type has a component which is of the other type. 
 
Ajax - Answer Web technology ...
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