4Disk

4Disk is a utility for managing and allocating disk space in a computer. It was developed by Williams Software Corporation and released in the 1980s. The program allows users to create and manage disk partitions, defragment disk space, and copy files between disks.

4Disk operates on disk systems that use the BIOS standard, which was commonly used in older systems. The program is designed to work with single and dual disk setups, and it can handle various disk formats. Users can create and manage primary and secondary partitions, as well as logical drives.

One of the main features of 4Disk is its defragmentation utility. Defragmentation is the process of reorganizing data on a disk to minimize the fragmentation of the disk space. Fragmentation occurs when files are saved in non-contiguous pieces on the disk, which can slow down system performance. 4Disk's defragmentation tool rearranges data on the disk to create contiguous blocks, which can improve system speed and efficiency.

4Disk also includes a file management system that allows users to create, delete, and copy files between disks. Users can select which disks to manage and perform various operations, such as formatting disks, creating and deleting partitions, and checking the integrity of the disk.

4Disk was widely used in its time and was well-regarded for its utility and functionality. Although it is no longer supported or widely available, it remains an important part of computer history.