# Archives: Theory

## Converting Hexadecimal to Binary

The video below gives a step by step guide on how to convert hexadecimal to binary. Here’s how it works: Change any hexadecimal letters into their decimal equivalents. Work out the 4 bit binary code for each…

## Converting Binary to Hexadecimal

The video below gives a step by step guide on how to convert binary code into hexadecimal. Here’s how it works: From right to left, split the binary code into groups of 4 bits. Write…

## Converting Hexadecimal to Decimal

The video below gives a step by step guide on how to convert hexadecimal values into a decimal (denary) number. Here’s how it works: Write the correct base 16 headings above the hexadecimal values. Convert any letters (A…

## Converting Binary to Decimal

The video below gives a step by step guide on how to convert binary code into a decimal (denary) number. Here’s how it works: Write the correct base 2 headings above the binary code. Add…

## Converting Decimal to Hexadecimal

There are several ways to convert decimal (sometimes called denary, or base 10) numbers into hexadecimal (base 16). The video below gives a step by step guide on how to convert decimal numbers into binary…

## Converting Decimal to Binary

There are several ways to convert decimal (sometimes called denary, or base 10) numbers into binary. The video below gives a step by step guide on how to convert decimal numbers into binary code using…

## Logic Gates

Logic gates are the building blocks of a digital circuit. Every terminal in a logic gate will always be in one of the two binary states (0) or (1). These binary states represent the presence…

## Duplex, Half Duplex and Simplex

Duplex, Half Duplex and Simplex are the three possibilities for the direction of data transmission. Simplex Simplex is data transmission in one direction only. Two directional transmission is not possible. E.g. a radio station broadcast….

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