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  1. Revision notes
  2. GCSE
  3. Computer Science
  4. OCR
  5. Exam-Style Questions - Data Conversions

Exam-Style Questions - Data Conversions

Computer Science: OCR GCSE, topic 1.2.33

Test yourself on Exam-Style Questions - Data Conversions

  • Was there a binary overflow in the question 1.4? Yes or No?

Practise this topic for free
Previous topic1.2.32 Exam-Style Questions - StorageNext topic1.2.34 Diagnostic Misconceptions - RAM vs ROM

Computer Science: OCR GCSE contents

  1. 1 Computer Systems

    • 1.1 Systems Architecture

      • 1.1.1 Fetch-Execute Cycle
      • 1.1.2 Common CPU Components & Their Function
      • 1.1.3 Von Neumann Architecture
      • 1.1.4 Factors Affecting CPU Performance
      • 1.1.5 Embedded Systems
      • 1.1.6 Exam-Style Questions - Von Neumann Architecture
      • 1.1.7 Diagnostic Misconceptions - Embedded vs General
    • 1.2 Memory & Storage

      • 1.2.1 Types of Memory
      • 1.2.2 Flash Memory
      • 1.2.3 Properties of Flash Memory
      • 1.2.4 Running Out of Memory
      • 1.2.5 Virtual Memory
      • 1.2.6 Units of Capacity
      • 1.2.7 Calculating Capacity Requirements
      • 1.2.8 Solid State Storage
      • 1.2.9 Properties of Solid State Media
      • 1.2.10 Magnetic Storage
      • 1.2.11 Properties of Magnetic Media
      • 1.2.12 Examples of Magnetic Storage
      • 1.2.13 Optical Storage
      • 1.2.14 Properties of Optical Media
      • 1.2.15 Examples of Optical Storage
      • 1.2.16 Types of Optical Disk
      • 1.2.17 Number Bases
      • 1.2.18 Converting Number Bases
      • 1.2.19 Hexadecimal
      • 1.2.20 Using Hexadecimal
      • 1.2.21 Converting Denary & Hexadecimal
      • 1.2.22 Binary Addition
      • 1.2.23 Binary Shifts
      • 1.2.24 Representing Text
      • 1.2.25 ASCII & Unicode
      • 1.2.26 Representing Images
      • 1.2.27 Converting Binary & Images
      • 1.2.28 Representing Sound
      • 1.2.29 Data Compression
      • 1.2.30 Grade 9 - Storage
      • 1.2.31 Exam-Style Questions - Primary Memory
      • 1.2.32 Exam-Style Questions - Storage
      • 1.2.33 Exam-Style Questions - Data Conversions
      • 1.2.34 Diagnostic Misconceptions - RAM vs ROM
      • 1.2.35 Diagnostic Misconceptions - Bits, Nibbles & Bytes
      • 1.2.36 Diagnostic Misconceptions - Bits Required to Store
      • 1.2.37 End of Topic Test - Computer Systems
      • 1.2.38 End of Topic Test - Representation
    • 1.3 Computer Networks, Connections & Protocols

      • 1.3.1 Benefit of Networks
      • 1.3.2 Types of Networks
      • 1.3.3 Network Performance
      • 1.3.4 Networks: How Do Packets Get Routed?
      • 1.3.5 Client-Server Model
      • 1.3.6 Pros & Cons of Client-Server Model
      • 1.3.7 Peer-to-Peer Model
      • 1.3.8 Pros & Cons of Peer-to-Peer Model
      • 1.3.9 Network Hardware
      • 1.3.10 Transmission Media
      • 1.3.11 What is the Internet?
      • 1.3.12 URLs
      • 1.3.13 DNS & Web Hosting
      • 1.3.14 The Cloud
      • 1.3.15 Pros & Cons of the Cloud
      • 1.3.16 Star & Mesh Network Topologies
      • 1.3.17 WiFi
      • 1.3.18 WiFi Frequency & Channels
      • 1.3.19 WiFi Encryption
      • 1.3.20 IP Addresses
      • 1.3.21 MAC Addresses
      • 1.3.22 Network Protocols
      • 1.3.23 Transmission Protocols
      • 1.3.24 Application Protocols
      • 1.3.25 Layers
      • 1.3.26 Advantages of Layering
      • 1.3.27 Exam-Style Questions - Networking Models
      • 1.3.28 Exam-Style Questions - Network Protocols
      • 1.3.29 Diagnostic Misconceptions - LAN vs WAN
    • 1.4 Network Security

      • 1.4.1 Forms of Attack
      • 1.4.2 Penetration Testing
      • 1.4.3 Malware
      • 1.4.4 How Malware Spreads
      • 1.4.5 Social Engineering
      • 1.4.6 Phishing
      • 1.4.7 Cracking Passwords
      • 1.4.8 Denial of Service Attacks
      • 1.4.9 Data Interception
      • 1.4.10 Methods of Data Interception
      • 1.4.11 SQL Injection
      • 1.4.12 Network Administration
      • 1.4.13 Network Forensics
      • 1.4.14 Protecting Against Malware
      • 1.4.15 Firewalls
      • 1.4.16 User Access Levels
      • 1.4.17 Passwords
      • 1.4.18 Encryption
      • 1.4.19 End of Topic Test - Networks
    • 1.5 Systems Software

      • 1.5.1 System Software
      • 1.5.2 Utility Software
      • 1.5.3 Operating Systems
      • 1.5.4 User Interfaces
      • 1.5.5 Memory & Process Management
      • 1.5.6 File Management
      • 1.5.7 Device Management
      • 1.5.8 User Management
      • 1.5.9 Encryption Software
      • 1.5.10 Defragmentation Software
      • 1.5.11 Data Compression Software
      • 1.5.12 Backup Software
    • 1.6 Ethical, Legal, Cultural & Environmental Concern

      • 1.6.1 Open Source Software
      • 1.6.2 Proprietary Software
      • 1.6.3 Licensing Issues
      • 1.6.4 Ethical Issues - The Digital Divide
      • 1.6.5 Ethical Issues - Net Neutrality
      • 1.6.6 Ethical Issues - Working Conditions
      • 1.6.7 Ethical Issues - Censorship
      • 1.6.8 Exam-Style Questions - Ethical Issues
      • 1.6.9 Data Protection Act 1998
      • 1.6.10 Computer Misuse Act (1990)
      • 1.6.11 Copyright Designs & Patents Act (1988)
      • 1.6.12 Creative Commons Licensing
      • 1.6.13 Freedom of Information Act (2000)
      • 1.6.14 Cultural Issues
      • 1.6.15 Environmental Issues
      • 1.6.16 Online Activity Tracking & The Internet of Things
      • 1.6.17 Stakeholders
      • 1.6.18 Other Impacts of Digital Technology on Society
      • 1.6.19 End of Topic Test - Software & Issues
      • 1.6.20 Diagnostic Misconceptions - Open Source
  2. 2 Computational Thinking, Algorithms & Programming

    • 2.1 Algorithms

      • 2.1.1 Computational Thinking - Abstraction
      • 2.1.2 Computational Thinking - Decomposition
      • 2.1.3 Algorithmic Thinking
      • 2.1.4 Pseudocode
      • 2.1.5 Flowchart Diagrams
      • 2.1.6 Interpreting Algorithms
      • 2.1.7 Correcting Algorithms
      • 2.1.8 Completing Algorithms
      • 2.1.9 Search Algorithms
      • 2.1.10 Binary Search
      • 2.1.11 Linear Search
      • 2.1.12 Overview of Sort Algorithms
      • 2.1.13 Bubble Sort
      • 2.1.14 Merge Sort
      • 2.1.15 Insertion Sort
      • 2.1.16 Exam-Style Questions - Sorting Algorithms
    • 2.2 Programming Fundamentals

      • 2.2.1 Variable Declaration & Assignment
      • 2.2.2 Input & Output
      • 2.2.3 Program Flow - Sequence
      • 2.2.4 Program Flow - Selection
      • 2.2.5 Program Flow - Iteration
      • 2.2.6 Arithmetic Operators
      • 2.2.7 Relational Operators
      • 2.2.8 Boolean Operators
      • 2.2.9 Data Types
      • 2.2.10 Casting
      • 2.2.11 Arrays
      • 2.2.12 Strings
      • 2.2.13 File Handling
      • 2.2.14 Structuring Data - Records
      • 2.2.15 Structured Query Language
      • 2.2.16 Random Number Generation
      • 2.2.17 End of Topic Test - Programming
      • 2.2.18 Exam-Style Questions - Translation
      • 2.2.19 Diagnostic Misconceptions - Comparison Operators
      • 2.2.20 Diagnostic Misconceptions - = & ==
      • 2.2.21 Diagnostic Misconceptions - Types of Data
      • 2.2.22 Diagnostic Misconceptions - Last Line of Code
      • 2.2.23 Diagnostic Misconceptions - Array Index
    • 2.3 Producing Robust Programs

      • 2.3.1 Defensive Design
      • 2.3.2 Validation & Sanitisation
      • 2.3.3 Authentication & Contingencies
      • 2.3.4 Maintainability
      • 2.3.5 Purpose of Testing
      • 2.3.6 Types of Testing
      • 2.3.7 Test Plans
      • 2.3.8 Types of Errors
      • 2.3.9 End of Topic Test - Programming
      • 2.3.10 Exam-Style Questions - Testing
    • 2.4 Boolean Logic

      • 2.4.1 Binary Systems
      • 2.4.2 Logic Circuits
      • 2.4.3 Boolean Logic
      • 2.4.4 Boolean Operators
      • 2.4.5 Grade 9 - Logic
    • 2.5 Programming Languages & IDEs

      • 2.5.1 High-Level vs Low-Level Languages
      • 2.5.2 Translation - Compliers & Interpreter
      • 2.5.3 Translation - Assemblers
      • 2.5.4 Integrated Development Environments
      • 2.5.5 Exam-Style Questions - Translation

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