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Write down the drawback of top down parsing of backtracking.
Following are disadvantages of top down parsing of backtracking:
(i) Semantic actions can't be performed whereas making a prediction. The actions should be delayed till the prediction is identified to be a part of a successful parse.
(ii) Precise error reporting is impossible. A mismatch only triggers backtracking. A source string is identified to be erroneous just after all predictions have failed.
The NAND gate. The NAND gate is equivalent to an AND gate followed by a NOT gate so that the output is 0 when all of the inputs are high, otherwise the output is 1. There may
Discuss in brief the history of E-Commerce. History of E-commerce illustrated below: E-commerce began before personal computers were prevalent and has grown into a multibill
What is the use of isolated I/O configuration. In isolated I/O configuration the CPU has distinct input and output instructions and each of these instructions is associated wi
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Vector-Vector Instructions In this type, vector operands are fetched by the vector register and saved in another vector register. These instructions are indicated with the foll
Communications between the user and the server A significant enhancement was achieved when communications between the user and the server was sent in encrypted form and later
if the 6 is a and the b is 3 what is the c ?
Q. Design the counter using sequential logic with following counting sequence using RS- flip-flops. 000, 100, 101, 111, 010, ... ... ... ... ... ... ... ... ... ...
In a particular exchange during busy hour 1200 calls were offered to a group of trunks, during this time 6 calls were lost. The average call duration being 3 minutes Calculate
What is Debate Debate took place in the 1980s and first half of the 1990s. It was resolved as RISC the winner since it allows more efficient pipelining, results in simpler hard
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