There are two major types of control organization – Hardwired control and micro-programmed control.
| S.No. | Hardwired Control | Micro-programmed Control |
| 1. | The control logic is implemented with gates, flip-flops, decoders. It can be optimized to produce fast mode of operation. | The control information is stored in control memory. The control memory is programmed to initiate the required sequence of microoperations |
| 2. | Requires changes in the wiring among the various components if the design has to be modified or changed | Any required changes or modifications can be done by updating micro-program in control memory. |