The main types of digital information memory systems on optical disks and holographic media are considered, requirements are given and the main characteristics and parameters of optical-holographic systems of archival memory are determined. Methods of multiplexing Fourier microholograms onto a holographic medium were analyzed. The main optical schemes of digital information registration in the form of single and superimposed microholograms of optical-holographic systems of archive memory are considered, requirements for their units and blocks are given. A method for computer synthesis of one-dimensional and two-dimensional Fourier microholograms is presented and optical circuits for their reading and recording on a holographic medium are analyzed.