HRS-100, ХРС-100, GVS-100 or ГВС-100, (see Ref.#1, #2, #3 and #4) (Serbo-Croatian: Hibridni Računarski Sistem, Russian: Гибридная Вычислительная Система, English: Hybrid Computer System) was a third generation hybrid computer developed by Mihajlo Pupin Institute (Serbia, then SFR Yugoslavia) and engineers from USSR in the period from 1968 to 1971.

HRS-100 was invented and developed to study the dynamical systems in real and accelerated scale time and for efficient solving of wide array of scientific tasks at the institutes of the A.S. of USSR (in the fields: Aerospace-nautics, Energetics, Control engineering, Microelectronics, Telecommunications, Bio-medical investigations, Chemical industry etc.).

HRS-100 was composed of: HRS-100 has a 32-bit TTL MSI processor with following capabilities: Primary memory was made up of 0.9 μs cycle time magnetic core modules.

Following devices were produced or planned: Interconnection hardware (called simply "Link") connects digital and analog components of HRS-100 into a single unified computer.

Communicating digital data with analog consoles is done through 16 control, 16 sensitivity, 16 indicator and 10 functional "lines".