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data

PLEASE READ: All of the tests below self mark, tell you your mark as a percentage and show you what the correct answer is. They also offer light hearted feedback about your progress. If you are easily offended with any of the feedback then feel free to use a different website (or stop being so sensitive). Ultimately at the very least, we want you to achieve your target grade and at the very most, we want you to be the next Steve Jobs, Bill Gates or Sophie Wilson. Enough talk, lets see what you got...Goodluck!

Self-test


​01 - Random topics

​02 - Programming

​03 - Data

​04 - Computers

​05 - Networks

​06 - Legal, ethical etc​

​07 - Paper 2

Self-test Binary

Loading Binary

4-bit Two's complement (Denary to binary) NOT OCR

Loading 4-bit Two's complement (Denary to binary)

4-bit Two's complement (Binary to denary) NOT OCR

Loading 4-bit Two's compliment (Binary to denary)

8-bit Two's complement​ NOT OCR

Loading 8-bit Two's complement

Twos compliment​ NOT OCR

Loading Binary - Twos compliment

Sign and magnitude​ NOT OCR

Loading Binary - Sign and magnitude

Hexadecimal

Loading Hexadecimal

Hexadecimal to denary

Loading Hexadecimal to denary

Hexadecimal above F

Loading Hexadecimal above F

Binary addition

Loading Binary addition

Binary overflow

Loading Binary overflow

Signed/unsigned integers

Loading Signed/unsigned integers

Logical shifts (Multiply)

Loading Logical shifts (Multiply)

Logical shift (Divide)

Loading Logical shift (Divide)

 Arithmetic shift (multiply, positive number) NOT OCR

Loading Arithmetic shift (multiply, positive number)

Arithmetic shift (multiply, negative number) ​NOT OCR

Loading Arithmetic shift (multiply, negative number)

Arithmetic shift (divide, negative numbers) ​NOT OCR

Loading Arithmetic shift (divide, negative numbers)

Arithmetic shift (divide, positive numbers) ​NOT OCR

Loading Arithmetic shift (divide, positive numbers)

ASCII

Loading ASCII

Data representation - images

Loading Data representation - Images

Data representation - images2

Loading Data representation - Images2

Data representation - sound1

Loading Data representation - sound1

Data representation - sound

Loading Data representation - sound

Database introduction ​NOT OCR

Loading Database Introduction

Relational databases ​NOT OCR

Loading Database - Relational databases

File sizes 1

Loading File sizes1

File sizes 2

Loading File sizes2

Data transfer speeds 1 ​NOT OCR

Loading Data transfer speeds1

Data transfer speeds 2 ​NOT OCR

Loading Data transfer speeds2
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  • Exam boards
    • OCR past papers >
      • Paper1 (Sample)
    • Edexcel past papers >
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        • Programming Language Subset (PLS)
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        • Paper 1 (specimen1)
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