What is a race condition attack?
A race condition attack happens when a computing system that’s designed to handle tasks in a specific sequence is forced to perform two or more operations simultaneously.
What is the difference between synchronous and asynchronous?
What is the difference between synchronous and asynchronous instruction? Synchronous learning is interactive, two-way online or distance education that happens in real time with a teacher, whereas asynchronous learning occurs virtually online and through prepared resources, without real-time teacher-led interaction.
What is a binary counter?
Binary counters are circuits that generate binary sequences that can be associated with the number of clock signal pulses applied to the input. In a synchronous counter, all the flip‐flops are triggered by the same clock signal.
What is 3 bit counter?
3-bit Up Counter A counter is a sequential circuit that goes through a prescribed sequence of states upon the application of input pulses. The input pulses called count pulses, may be clock pulses, or they may originate from an external source and may occur at prescribed intervals of time or at random.
What is a 4-bit binary counter?
The SN74HC163 is a 4-bit binary counter. This mode of operation eliminates the output counting spikes normally associated with synchronous (ripple-clock) counters. A buffered clock (CLK) input triggers the four flip-flops on the rising (positive-going) edge of the clock waveform.
What is 4-bit up counter?
The SN74HC193 device is a 4-bit synchronous, reversible, up/down binary counter. Synchronous operation is provided by having all flip-flops clocked simultaneously so that the outputs change simultaneously with each other when dictated by the steering logic.
What is a decade counter?
A decade counter is one that counts in decimal digits, rather than binary. A decade counter may have each (that is, it may count in binary-coded decimal, as the 7490 integrated circuit did) or other binary encodings. A decade counter is a binary counter that is designed to count to 1001 (decimal 9).
How does a ring counter work?
A ring counter is a type of counter composed of flip-flops connected into a shift register, with the output of the last flip-flop fed to the input of the first, making a “circular” or “ring” structure.
What is self correcting counter?
It consists of modifying the state diagram of a counter with the desired modulus until a single cycle is left. Due to the additional hardware required to change state transitions, the final circuit tends to be slow and large.
How many flip flops are required for Mod 12 Johnson counter?
4 flip flops
How does priority encoder work?
A priority encoder is a circuit or algorithm that compresses multiple binary inputs into a smaller number of outputs. The output of a priority encoder is the binary representation of the original number starting from zero of the most significant input bit.
What is the advantage of using an encoder?
Advantages: The biggest advantage of absolute and incremental encoders are that they are inherently digital, which means they can interface easily to modern control systems. An encoder sends digital quality signals back to the computer.
How many outputs does a BCD decoder have?
A BCD to decimal decoder has ten output bits. It accepts an input value consisting of a binary-coded decimal integer value and activates one specific, unique output for every input value in the range [0,9].
Can an encoder be a transducer?
A rotary encoder, also called a shaft encoder, is an electro-mechanical device that converts the angular position or motion of a shaft or axle to analog or digital output signals. The output of an absolute encoder indicates the current shaft position, making it an angle transducer.