'Programmers manual' is part of the ISOT 1031S documentation. The volume contains the following parts:
- operational documents;
- passport;
- programmers manual.
Programmers manual describes: Assembler for K580IK80
(i8080); Assembler for U880D
(Z80) and BASIC-80.
The ISOT 1031S personal computer was manufactured by 'ISOT'. It uses a CP/M 2.2 compatible disk operatinng system called 'UMCO'. The computer is buil around the east german U880D CPU - a clone of Z80, and has 64kB OF RAM.