Hard Disk Capacity
Hard drive capacity has increased dramatically over the last few years and it is not a simple matter of installing a new drive into an old system. The first problem is the BIOS (Basic Input Output System) of the motherboard will not recognise the drive or allocate a smaller disk size. The second is the maximum size that can be addressed by the operating system installed. There is no easy solution to the first problem and you will need to replace the motherboard unless there is an upgrade for the BIOS on the manufacturer's website. The solution to the second problem is one of partitioning the drive into chunks that can be addressed by the chosen file system. For example, the FAT16 file system can only access up to 2GB (gigabytes) of disk space. This seems very small nowadays but when FAT16 was the most popular file system the size of hard drives were measured in megabytes.