A format for storing hierarchical files . Each unit of analysis has its own record structure or record type . Different units of analysis do not necessarily have the same number of bytes or characters as the records for other units of analysis. In order to give such a file a common physical record length , short logical records are typically "padded" with blanks so that they will all be the same physical record length. A hierarchical file can be also be stored in a rectangular file . For instance, the Survey of Income and Program Participation is distributed both ways; users can choose the format they prefer. Typically, the hierarchical file structure is more space-efficient but more difficult to use.
1)Disk density is a capacity designation on magnetic storage 2)A high-density diskette, or HD disk, is a 3.5" diskette capable of holding up to 1.44 megabytes of data or a 5.25" diskette capable of holding up to 1.2 megabytes of data. The additional data capacity is achieved by reading and writing to both sides of the dis
ہائی کثافت ڈسک
1)a bright or reflective area in a painting, picture, or design 2)to attract attention to or emphasize something important
سُرخی ۔ اہم نکتہ ۔ خاص جھلکی
Boisterously merry.
A small hill or mound.
To obstruct.
Farthest from the front.
An obstacle.
Having a hairy covering.
To gather and store away for the sake of accumulatio