FINALTERM EXAMINATION
CS302- Digital Logic Design
Time: 90 min
Marks: 58
Question No: 23 ( Marks: 1 ) - Please choose one
The total amount of memory that is supported by any digital system depends upon ______
► The organization of memory
► The structure of memory
► The size of decoding unit
► The size of the address bus of the microprocessor
Question No: 24 ( Marks: 1 ) - Please choose one
The expression F=A+B+C describes the operation of three bits _____ Gate.
► OR
► AND
► NOT
► NAND
Question No: 25 ( Marks: 1 ) - Please choose one
Stack is an acronym for_________
► FIFO memory
► LIFO memory
► Flash Memory
► Bust Flash Memory
Question No: 26 ( Marks: 1 ) - Please choose one
Addition of two octal numbers “36” and “71” results in ________
► 213
► 123
► 127
► 345
Question No: 27 ( Marks: 2 )
Define quantization process.
Question No: 28 ( Marks: 2 )
Explain the difference between 1-to-4 Demultiplexer and 2-to-4 Binary Decoder?
Question No: 29 ( Marks: 2 )
A general Sequential circuit consists of a combinational circuit and a memory element. How this memory element is implemented
Question No: 30 ( Marks: 2 )
Suppose a 2 bit up-counter, having states “A, B, C, D”. Write down GOTO statements to show how present states change to next states.
Question No: 31 ( Marks: 3 )
Name three Operations that can be performed on FLASH Memory
Question No: 32 ( Marks: 3 )
Explain Rotate Right Operation of shift register with the help of diagram.
Question No: 33 ( Marks: 3 )
You are given the block diagram of 74HC190 integrated circuit up/down counter, explain the function of labeled inputs/outputs.
Question No: 34 ( Marks: 5 )
Draw the state diagram of 3-bit up-down counter, use an external input X, when X sets to logic 1, the counter counts downwards, otherwise upward.
Question No: 35 ( Marks: 5 )
Differentiate between synchronous and asynchronous RAM.
Question No: 36 ( Marks: 5 )
Explain Memory Select or Enable Signals
