Computer
Definitions
System Documentation:
System Documentation includes processing procedures, sample input and out layout.
Structured Program Designing:
The task of structure program design is aided by the use of programing aid. These includes
System Documentation includes processing procedures, sample input and out layout.
Structured Program Designing:
The task of structure program design is aided by the use of programing aid. These includes
- Structure chart
- Flow or logic chart
- Pseudocodes decision table
Pseudocode is the step by step instruction in a plain english language.
Coding:Set of instructions using specified syntax.
Testing:Testing is an investigation process to provide admin/user with information about the quality of the product or service under test.
Debugging:Debugging is the process of finding and removing error.
Fields: Its a single item of data
Records: Its a collection of fields or data item.
Files: Its a organized collection of related records.
Key Field: It can serve as a primary key. It is also use to find the specific records from the files. It can also use to create a link b/w two or more than two tables in a given database.
Coding:Set of instructions using specified syntax.
Testing:Testing is an investigation process to provide admin/user with information about the quality of the product or service under test.
Debugging:Debugging is the process of finding and removing error.
Fields: Its a single item of data
Records: Its a collection of fields or data item.
Files: Its a organized collection of related records.
Key Field: It can serve as a primary key. It is also use to find the specific records from the files. It can also use to create a link b/w two or more than two tables in a given database.
Database:A database is a collection of program, date and tables in a structured way or a database is a collection of logically related files in a structured way, in a manner to satisfy the need of an organization.
Database Management Software(DBMS):On large computer systems database are linked with the application program by special software, known as Database Management Software(DBMS)
Master File: Its a main file which contain permanent data by which transactions are processed.
Transaction File:It includes input and output files for holding temporary incoming and outgoing data.
Serial access file:In Serial file the records do not follow each other in a particular order. If any record is needed to be added so it can be added in the end of the file.
Sequential access file: It is similar to serial file except the record is held in a particular order
Direct/Random access file: In this file, records are not held in any particular order and we can directly reach to any file, without processing any other file.
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