A book is sanctified to planning of the digital systems by means of language of description of apparatus of VHDL (VHSIC Hardware Description Language).The first part of book describes a planning process on the languages of description of apparatus.In the second part of book work is examined with VHDL in the different environments of planning : ModelSim (Mentor Graphics), Active HDL (Aldec), OrCAD (Cadence), Warp (Cypress Semiconductor), Foundation Series (Xilinx) and Symphony (Symphony EDA).The third part of book contains VHDL- of model of row combination and последовательностных of digital charts.The acquaintance of reader is assumed with bases of programming and planning of digital devices.A book is written on the basis of teaching of course of language of VHDL and his appendixes to the design of the digital systems in the Jewish university (Jerusalem), Хайфском university and branch of the English university of Coventry in Israel.