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What is meant by opening a data file
A data file is a file that can be read from or written to. Data files are particularly useful when large amounts of data are involved. Each line of a data file is called a record. The following is the first few records of the file ospots.dat (a file containing the total number of sunspots observed in a year during the years 1850-1975):
1850 66.6
1851 64.5
1852 54.1
1853 39.0
1854 20.6
To read from or write to a data file during the execution of a program, the file must first be opened with the function "fopen". This function takes two arguments - the first one is the path to your file, including the filename. So if your file sits in the same directory as your C source file, you can simply enter the filename in here . The second argument is another char *, and determines how the file is opened by your program. Finally, fopen returns a FILE pointer if the file was opened successfully, else it returns NULL.
What is a Decoder ? Ans. Decoder: - This decodes the information. The decoders contain n inputs 7 at the end maximum 2 n outputs since n bit no can decode max 2n infor
In a clinic 0.15 of the patients have got the HIV virus. Assume a blood test is carried out on a patient. If the patient has got the virus the test will turn out positive with prob
Write a program to find the area under the curve y = f(x) between x = a and x = b, integrate y = f(x) between the limits of a and b. The area under a curve between two points can b
Raises when accessing an unassigned memory location accessing a null pointer
OLAP can process difficult queries and give the output in less than 0.1 seconds, for it to achieve like performance OLAP uses aggregations. Aggregations are built by aggregating an
Q. Design a 3-bit counter using sequential logic with following counting sequence using JK- flip-flops which counts the sequence 0, 3, 2, 7, 5 and repeat.
Forward checking: Whether to add some sophistication to the search method there constraint solvers use a technique called as forward checking. So here the general idea is to w
Fetching a word from memory: CPU transfers the address of the needed information word to the memory address register (MAR). Address of the needed word is transferred to the pr
BIOS or Basic Input/Output System is the first program accessed by the processor during start up to make sure that all the other basic programs, hard drives, ports, peripherals and
What is the difference between VB6 and VB.Net? 1,Object-based Language 2,Doesnot support Threading 3 Not powerful Exception handling mechanism 4,Does not having suppor
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