A digital system performs microoperations. The most well known digital system example is is a microprocessor. A microprocessor performs microoperations to run machine language instructions. Microoperations are simple operations that can be completed in one clock period, such as additions, subtractions, AND, OR, INVERT, compare, shift, rotate, read from memory, write to memory. Digital systems c...

The veriication of digital circuits at higher levels of abstraction still suuers from complex and unstructured proofs. In this paper, we present a class of circuits that can be used for the implementation of arbitrary processes without shared memory. These processes communicate with each other according to a handshake protocol. We have proven general theorems to automatically derive correctness...

quantum-dot cellular automata (qca) are a promising nanotechnology to implement digital circuits at the nanoscale. devices based on qca have the advantages of faster speed, lower power consumption, and greatly reduced sizes. in this paper, we are presented the circuits, which generate random numbers in qca. random numbers have many uses in science, art, statistics, cryptography, gaming, gamblin...

Complex gene regulation requires responses that depend not only on the current levels of input signals but also on signals received in the past. In digital electronics, logic circuits with this property are referred to as sequential logic, in contrast to the simpler combinatorial logic without such internal memory. In molecular biology, memory is implemented in various forms such as biochemical...

The paper deals with the problem of design and FPGAbased realization of digital circuits with the current-mode gates – novel digital gates operating with constant, continuous power supply current. The purpose is the provision of a high level of noise immunity of chips, which contain both analog and digital circuits. Using proposed approach to design digital current-mode circuits, the current-mo...

The paper deals with the problem of design and FPGAbased realization of digital circuits with the current-mode gates – novel digital gates operating with constant, continuous power supply current. The purpose is the provision of a high level of noise immunity of chips, which contain both analog and digital circuits. Using proposed approach to design digital current-mode circuits, current-mode p...

Students studying undergraduate courses in digital electronics often lose interest in the subject, due to the short comings of learning tools that are commonly used to supplement such courses. Ideally learning tools increase student participation in the learning process and help in overcoming difficulties inherent to the subject. Comparisons have been drawn between the existing learning tools. ...