x

Bases, bits and place values

Bases, bits and place values

8-bit binary place values with 01001111 mapped to denary 79, hexadecimal 4F, and a comparison of sign-and-magnitude with two's complement layouts

A bit is a binary digit, so it can only be 0 or 1. A base, or radix, tells you how many digit symbols are available before place value moves left.

Mathematical skills Lesson

  1. A Level
  2. /Computer Science
  3. /Mathematical skills

Step-by-step lessons covering OCR A Level Computer Science Mathematical skills for A Level Computer Science. Each lesson breaks down Mathematical skills, then works through exam-style questions.

Lessons

Mathematical skillsEntity relationship diagrams