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A Level Topic 6 - Coggle Diagram
A Level Topic 6
Logic Gates
Truth Tables
Logic Circuits
Boolean Expressions
Half Adder
Full Adder
Edge-triggered D-Type Flip-flop
NOT, AND, OR, XOR, NAND, NOR
6.1.2 Classification of Software
6.1.3 System Software
Control and manage the hardware
Utilities
'Housekeeping tasks'
Library Programs
A collection of programs and packages
that are made available for common
use within some environment
Translators
A program that converts source code
into object code.
Compiler
Interpreter
Assembler
OS
Handles resource management:
Processor
Memory
I/O Devices
Among competing processes
Application Software
For users to compete a task
EG Word Processor, Spreadsheet, Image editor
Classification of Programming Languages
High Level
Low Level
Comparison including
Advantages/Disadvantages
Low Level: machine code, Assembly Language
Key features
Boolean Algebra
De Morgan's Laws
To simplify expressions