| A | B |
| Bit | The smallest unit of information, always either a 1 or 0 |
| Byte | 8 bits of information. It is the building block for all other units of information. |
| Central Processing Unit (CPU) | A small chip that performs calculations and carries out all instructions given to a computer. |
| Computer | An electronic device that receives, processes, and stores data, and produces a result. |
| Hardware | The physical devices that make up a computer system. |
| Input | Information entered into a computer. |
| Network | A group of computers connected together. |
| Operating System (OS) | The overall program that controls all the other software programs and allows hardware devices to work properly. |
| Output | The information a computer delivers back to the user. |
| Personal Computer (PC) | A computer that is used by one person at a time. |
| Random Access Memory (RAM) | The temporary information that a computer uses only when it works with a particular file. |
| Read Only Memory (ROM) | The permanent information on your hard drive. |
| Software | A computer program that contains a set of instruction s that make it possible for your computer to perform tasks. |
| Storage Device | Hardware that saves data onto a hard drive, a server, or a disk. |