Microbits

• computer program - the instructions that enable computers to do something useful
• HEX file - BBC microbit hexadecimal computer program
• flashing - downloading a hex file to a BBC microbit
• code - the instructions in a computer program
• hexadecimal - base 16 number system
• binary - base 2 number system
• processor - carries out the instructions of a computer program
• magnetometer - electronic sensor that detects direction (compass)
• accelerometer - device or detecting motion (shaking.position)
• LED matrix - gird of 25 LEDs (5 x 5) the microbit display 'screen'
• iteration - repeating a section of code
• string - a data-type, information that is stored as text
• event - something that happens eg. button is pressed
• sequence - programs run one instruction at a time in order from top to bottom
• selection - when programs make decision also known as 'branching' (if, then, else, if else)
• function - reusable block of instructions in a computer program with an identifier
• variable - temporary storage of data in a computer
• array - storage of multiple items of data in the same location and with the same identifier
• sorting algorithm - computational method of putting data from a list into a specified order
• antenna - converts electrical signals into radio waves, and vice-versa
• input - a way to add an instruction into the microbit
• LED - light emitting diode, a semiconductor diode that emits light when current flows through it