Memory in Computer Systems Role of Memory In computers, memory is the most essential component of the normal functioning of any system. The computer system categorizes the memory for different purposes and uses. Memory devices are digital systems that store data either temporarily or for a long term. Digital computers have built-in memory devices that …
J-K Flip Flop The JK flip flop is one of the most used flip flops in digital circuits. The JK flip flop is a universal flip flop having two inputs ‘J’ and ‘K’. JK Flip flop is known as Jack Kilby flip-flop, it is versatile and can be used as a basic memory element. JK …
Master Slave Flip-Flop We have used Feedback Inputs in JK flip flop. these feedback paths raised a new problem in the circuit, which is called race around condition. Race around condition in the JK flip is a major problem in which the outputs of flip flop are toggled continuously till the end of applied clock …
Counters A special type of sequential circuit used to count the pulse is known as a counter, or a collection of flip flops where the clock signal is applied is known as counters. The counter is one of the widest applications of the flip flop. Based on the clock pulse, the output of the counter …
Registers Flip flops can be used to store a single bit of binary data (1 or 0). However, in order to store multiple bits of data, we need multiple flip-flops. N flip flops are to be connected in order to store n bits of data. A Register is a device that is used to store …
Don’t Care Condition in K-Map The “Don’t care” condition says that we can use the blank cells of a K-map to make a group of the variables. To make a group of cells, we can use the “don’t care” cells as either 0 or 1, and if required, we can also ignore that cell. We …
Decoder Decoder is the combinational circuit that change the binary information into 2N output lines The binary information is passed in the form of N input lines. The output lines define the 2N-bit code for the binary information. In simple words, the Decoder performs the reverse operation of the Encoder. At a time, only one …
Full Subtractor and Half Subtractor A Binary Subtractor is a digital circuit that performs the arithmetic binary subtraction between two numbers with respect to the logic operations and laws of Boolean Algebra. The subtractors are used in combinational circuit design and the Arithmetic Logic Unit (ALU) of the processor to calculate multiple addresses. Subtractor circuits …
Boolean Expressions from Logic Diagrams When a logic circuit is given, the Boolean expression describing that logic circuit can be obtained by combining the input variables in accordance with the logic gate functions. The procedure is best illustrated with the examples that follow. For the logic circuit shown below find D = f(A, B, C), …
K-Map A Karnaugh map (K-map) is a visual method used to simplify the algebraic expressions in Boolean functions without having to resort to complex theorems or equation manipulations. A K-map can be thought of as a special version of a truth table that makes it easier to map out parameter values and arrive at a …
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