A computer is a programmable device that accepts data as input and process it with a set of instructions and produces the result as output. A computer consists of the following four parts, Input Unit. Output Unit. Memory Unit. Central Processing Unit. Input Unit The input unit accepts data and instructions from user. Digitise received […]
General Architecture of a Computer Read More »
Flip flops are synchronous bistable devices, also known as bistable multivibrators. The term synchronous means that changes in the output occur in synchronization with control input called a clock. The basic form of an edge triggered flip-flop is the SR flipflop. The logic diagram of an SR flip-flop is shown in the figure. Circuit Diagram
A latch is a temporary storage element that has two stable states (bistable). They operate in signal levels rather than signal transitions. An active-HIGH input SR latch is formed with two cross-coupled NOR gates and an active-LOW input latch is formed with two cross-coupled NAND gate. An SR Latch with two cross-coupled NOR gate is
Triggering is the process of making a circuit active. Triggering allows the circuit to take input and generate output. The circuit will become active at certain states of clock pulse depending upon the triggering methods we used. What is a Clock? A clock is a signal that oscillates between a high and a low state.
Edge triggering and pulse triggering Read More »
Combinational circuits produce an output based on the values of current input variables only. In sequential circuits, the present output depends on the present input as well as the previous output (previous input variables). That is sequential circuits consist of memory elements capable of storing binary information. The state of a sequential circuit at a
Sequential Circuits Read More »
