Four early computing handbooks and manuals, including: Large Capacity Memory Techniques for Computing Systems, hardcover, published in 1962 by Macmillan (ex-Hughes Aircraft Co. Library); IBM System/360 Scientific Subroutine Package (360A-CM-03X) Version II Programmer's Manual, housed in a binder, published in 1967 by IBM; Laboratory Computer Handbook, published in 1971 by Digital Equipment Corporation; and An Introduction to Microcomputers, softcover, published in 1975 by Adam Osborne and Associates. In overall very good to fine condition.