| A | B |
| hardware | components of a computer system, the physical pieces |
| program | A series of instructions that the hardware executes one after another. |
| Software | The programs and the data those programs use. |
| Operating System | The main software of a computer. |
| GUI | Graphical User Interface |
| Binary Number System | Only has 2 digits 0 and 1 |
| Bit | A signle binary digit |
| address | unique number of a memory location |
| Volatile Memory | The information is lost if the electric power is turned off. |
| RAM | Random Access Memory |
| ROM | Read Only Memory |
| URL | Uniform Resource Locator |
| Solve a Problem | This is the purpose of writing a program. |
| Understanding the Problem | First step in the problem solving process. |