Usually, I prepare my own description for any of instruments in this catalogue, but not this time.
Enjoy how Roland Corp. themselves described the MKS-100 40 years ago.

The Roland Digital Sampler is a completely new type MIDI Sound Module which can record (sample and record into computer memory) all sorts of sounds then play these sounds with the connected instrument.

The MKS-100 is conceptually like a tape recorder in that it records sound. However, the recording process is very different, since the MKS-100 is recording into computer memory. Computers can accept information only in digital signal so the MKS-100 converts audio signal into digitals. It does this by examining (sampling) the incoming signal level great many times a second, and sequentially recording these different levels in computer memory.

This digital recording process is called SAMPLING.

Features:

• The MKS-100 has four Banks (A, B, C and D) to record the sounds, therefore any of the four samples can be instantaneouly selected.
• The MKS-100 features the dynamics function.
• The Split function allows to play two different sounds in the upper and the lower sound ranges.
• The sound you have recorded can be saved onto a 2.8 inch quick disk (QD) for future use.
• The liquid crystal display and the alpha dial serve to make the operation quicker and easier.
• The MIDI Mono Mode makes the MKS-100 useful for the GR Guitar System.
• The Roland Digital Sampling Keyboard S-10's Sound Library QD can be used for the MKS-100.