Question

Describe the differences between combinational and sequential logic.

"Sequential logic circuits have its output based on the inputs and the present states of the system, while combinational logic circuit’s output is based only on the present inputs. Sequential Logic Circuits have a memory, while combinational logic circuits do not have the ability to retain data (state) Combinational Logic Circuits are used mainly for arithmetic and Boolean operations, while sequential logic circuits are used for storage of data. Combinational logic circuits are built with logic gates as the elementary device while, in most cases, sequential logic circuits have (f-f’s) as the elementary building unit. Most sequential circuits are clocked (triggered for operation with electronic pulses), while combinational logic does not have clocks. " write a short response

Answer 1

Combinational and sequential logic differ primarily in how they process inputs and maintain state. Combinational logic circuits generate outputs solely based on the current inputs, with no memory of past states; they are typically used for arithmetic and Boolean operations and are constructed from logic gates. In contrast, sequential logic circuits consider both the current inputs and the existing states of the system, incorporating memory elements to retain past information. This allows them to perform functions like data storage and stateful operations. Additionally, sequential circuits often rely on clock signals for synchronization, while combinational circuits operate without such timing control.