Csaba Hazay

He attended university as a scholarship holder of the Central Physical Research Institute of the Hungarian Academy of Sciences (KFKI); after graduation, he became involved in the development of the multi-channel digital analyzer and in the pilot plant production. He was also the co-author of two service releases.

Between 1969 and 1989, he worked at the Hardware Laboratory of the Computer Coordination Institute (SZKI), initially on the integration of peripherals for the R-10 computer and on the first domestic construction of the machine. He also participated in the development of a service patent.

When microprocessors appeared, he was the lead designer of the M05X 16-bit microprocessor-based minicomputer. Based on the M05X, he switched to software development as the head of the department that developed an online system for the Hungarian State Railways (MÁV) that followed the station dispatching technology. The completed equipment operated 24 hours a day for several years at Komárom, Hegyeshalom and Miskolc stations.
In the field of hardware-related software development, the software design of the channel controller of the radiotelephone system operating as a telephone line extender of the Budapest Radio Engineering Factory (BRG) was significant, including the necessary real-time task management module, which was suitable for operating according to the recommendations of the Specification and Description Language (SDL) of the International Telephony and Telegraph Service (CCITT).

After 1990, he briefly became involved in the training of programmers as the head of the department of the Computer Applications Company (Számalk).

In 1994, when the concessionary telephone companies were established, he joined the legal predecessor of the Invitel company. He participated in the development of the company's IT infrastructure. His main area of expertise – as an expert in interconnect processing – was data transmission and data transformation between exchanges and billing systems.
Upon the expiration of MATÁV's network concession, he developed and operated his own settlement system between co-service providers, which became necessary until his retirement.