Computer science is the study of algorithm

Modern computers are built using Von Neumann machine architecture.

Von Neumann machine have 3 aspects:

1. Architecture: I/O + Memory + CPU (CU: Control Unit + ALU: Arithmetic & Logic Unit)
   1. Those components are connected to the BUS
2. Stored Programs: All programs and data are in stored as binary information in the memory
3. Sequential Execution: The CPU will do 1 thing at a time. In 1 cycle the CPU will do one and one thing only.
   1. This is also known as Fetch Decode Execute
      1. Memory (is binary information) → fetched → CU → Decoded → ALU → Execute (the task).
      2. Decode and Execute are done by the same computer chip: the CPU