What is data file in QBasic?
In QBASIC you can store data in a separate file called a data file. Program file :A program file contains a set of instructions that are needed for data processing. A program file has BAS extention. Date file : A data file contains only data that are required during data processing.
What are the types of file handling?
Different operations that can be performed on a file are:
- Creation of a new file (fopen with attributes as “a” or “a+” or “w” or “w++”)
- Opening an existing file (fopen)
- Reading from file (fscanf or fgets)
- Writing to a file (fprintf or fputs)
- Moving to a specific location in a file (fseek, rewind)
- Closing a file (fclose)
What is the file handling?
File Handling is the storing of data in a file using a program. In C programming language, the programs store results, and other data of the program to a file using file handling in C. Also, we can extract/fetch data from a file to work with it in the program. The operations that you can perform on a File in C are −
What are the different modes to open the sequential data file?
A sequential file can be opened in one of three modes: input, output, or append. After opening a file, you must close it before opening it in another mode. Where Input means read-only access to the file, Output means write-only access, and Append means write-only access starting at the end of the file.
What is the advantage of creating data files in Qbasic?
The advantages of creating data file are as follows: i. Once a data file is created, it can be reused. ii.
What is data file in programming?
A data file is a computer file which stores data to be used by a computer application or system, including input and output data. A data file usually does not contain instructions or code to be executed (that is, a computer program). Most of the computer programs work with data files.
Why do we need data files?
Such information is stored on the storage device in the form of data file. Thus, data files allow us to store information permanently and to access later on and alter that information whenever necessary.
What is sequential file handling?
A sequential file contains records organized by the order in which they were entered. The order of the records is fixed. Records in sequential files can be read or written only sequentially. New records are added at the end of the file.
What is the difference between data file and program file?
File, as name suggests, is basic concept in computer that is designed to store data or information also known as common storage unit in computer and must have a unique name within given file directory….Difference between Program and File :
| Program | File |
|---|---|
| These set of instructions are stored in a file. | These are normally stored on hard disk. |
How will you process a data file?
Processing Data Files
- Select Commands > Process File. The system displays the Process File Dialog Box.
- Navigate to and select the desired data file and click Open.