Analyzing foreign publications, it is possible to draw the following conclusions:
a) Theoretically questions of identification on a voice are developed full enough;
b) A number of experimental systems are created;
c) The created systems have a number of lacks (small number of users, significant volume of the reference information, etc.);
d) The majority of the created systems use the standard equipment is rather inexpensive and reliable;
e) Industrial production of systems is not adjusted yet.
 Systems of the identification on prints of fingers. Prints of fingers for a long time it is used by criminalists for exact identification of criminals. Process of checking of prints is rather labor-consuming and long. In 1973. The national laboratory/had been started researches of ways of automation of checking of prints/69/. Such systems have been created some on the basis of standard universal COMPUTERS. Various measurements of figure of fingers are put in a basis of the analysis of prints of fingers, and in various systems various types of "relief" (an arch, an arch, a spiral, the termination and a branching of lines, etc.) are used . The equipment used for these purposes, is bulky and has very high cost. Besides time necessary for case and delivery of results though it was considerably reduced in comparison with manual way, but still makes 4-5 minutes. A necessary element of such systems is the person - operator that speaks about imperfection of used systems. From here follows, that for identification of the user it was necessary to create considerably more perfect and compact device used in systems of controllable access in protected premises. This work has been done by firm Calspan/70/. In a basis of process of identification comparison concerning position final and brunching of lines of a print is necessary. The search engine searches for the control elements determined at research of a reference sample on the current image. For identification of one person it is considered sufficient definition (X, Y) coordinates of 12 points. It demands a small memory size (less than 100 bytes). For removal of a print by experts of firm the way which is not demanding as it is usual, painting substance has been developed. It is based on significant change of reflecting substance. It is based on significant change of reflecting ability materials (connection of copper, mercury and iodine) at minor alteration of temperature. The layer of such material is heated up to temperature, the greater, than temperature of a human body. When the finger comes nearer to a plate covered with a material, convex scars of a skin of a finger in places of contact with a plate reduce temperature of a surface up to 35 degrees that changes reflecting ability in these places. Optical scanning reveals places of the ending and a branching of lines of a print. The device considered here is in a batch production, but because of high cost (50000 $) It can be applied only on the objects demanding very strong protection. Systems of the identification on handwriting. The technical equipment of identification on handwriting draws the big attention of experts abroad. In opinion of experts, such method is the most convenient for users. Main principle of identification on handwriting is the constancy of the signature of each individual though absolute concurrence, certainly, does not happen. The basic problem consists in differentiation of usual rejections in the true signature from fakes. Two approaches are probable. The first assumes dynamic measurements during a spelling, the second - the optical analysis of the available signature. The dynamic analysis of handwriting uses the special handle, containing the converter of acceleration on axes X, Y. According to firm IBM, cost of such handle does not exceed the price of a dear (an expensive) ball pen. Except for faster on axes X, Y force of pressure of the handle on a paper is measured also. The converter of effort is located in the basis of a platform on which the signature is carried out. For maintenance of the signature of acceleration are compared with reference. Some difficulties arise that an interval between the initials and a surname all time varies. It demands rather complex calculations. In view of all the reference sample capacities of memory about 2000 bytes are higher told demands. Probably also measurement of other parameters (time of contact of the handle with a paper, common time of a spelling, time of infringement of contact of the handle with a paper, average acceleration, speed and deviations(rejections) on axes {X and Y), average effort on axis Z, etc.). These parameters are determined during a control spelling till 5-10 samples. Each parameter demands memory of 200 bytes