Transdata - Wikiwand

Serviço Digital de Transmissão de Dados Via Terrestre (Digital Service of Data Transmission Via Land), also known as Transdata, was a data communication network first experimentally installed in 1976 by Embratel,^[1]^: 21 then in 1980 officially opened by the Brazilian government and leased by Embratel.

Transdata was a data communication system composed of private point-to-point circuits that provided safe communication. Before it was opened, companies in Brazil such as banks, aviation companies and multinational corporations only had access to Telex and telephone networks.^[2]^: 128 When Transdata opened, usage prices were fixed and were calculated according to the distance between both ends of the line.^[3]

History

The system was operated experimentally by Embratel from 1976,^[1]^: 21 and covered São Paulo and Rio de Janeiro by 1978, running a V.24/V.28 interface with a maximum access rate of 9600 bits per second.^[4] At the time, the Brazilian Telecommunications Company Embratel was state-owned and the government had given it a monopoly on telecommunications services.^[5]

In May 1980 Transdata was officially inaugurated by the Brazilian government^[2]^: 128 in 30 cities of São Paulo, Rio de Janeiro and Brasília^[1]^[6] due to the interest of the Military Dictatorship in investing in communication systems for strategic purposes.^[7] Transdata was then leased by Embratel.^[2]^: 128

The system quickly became popular due its reliability, with 33 operating centers and 9,854 rented circuits at the end of 1985, which rosed to 16,169 in 1987. According to Embratel, an average of 300 renting requests a day.^[2] In 1992, Transdata demand surpassed Telex.^[8]

From 1990 on, the Transdata lost popularity to Embratel's communication service Renpac, which was faster and designed for general use. In 1995, Transdata's revenue fell by 73% compared to 1990.^[9] The service ended somewhere during the 90s. Telebrás, owner of Embratel, was privatized in 1998 and many of its services were terminated.

Legacy

Transdata was the first telecommunication system of South America, and together with Renpac, it has further encouraged the Government to invest in a network system in Brazil.^[7]^[10]

References

1 2 3 Junkes, Guilherme da Silva (2014). Evolução da tecnologia da informação e comunicação (TIC) e seus benefícios para as empresas (PDF) (Thesis) (in Brazilian Portuguese). Universidade do Extremo Sul Catarinense.
1 2 3 4 Benakouche, Tamara (1997). "Redes técnicas/redes sociais: a pré-história da Internet no Brasil". Revista USP (in Brazilian Portuguese). 35. University of São Paulo: 124–133. doi:10.11606/issn.2316-9036.v0i35p124-133.
↑ Carvalho, Marcelo Sávio R. M. de; Cukierman, Henrique Luiz. Os primórdios da internet no Brasil (PDF) (Thesis) (in Brazilian Portuguese). Federal University of Rio de Janeiro.
↑ Halsey, J. R.; Hardy, L. E.; Powning, L. F. (1979). "Public data networks: Their evolution, interfaces, and st" (PDF). IBM Systems Journal. 18 (2): 237.
↑ Menezes de Carvalho, Marcelo Savio Revoredo; Cukierman, Henrique Luiz (2015). "The Dawn of the Internet in Brazil". IEEE Annals of the History of Computing: 55.
↑ "Transdata" (PDF). Telebras. Vol. 3. Telebrás. October 2017. Archived (PDF) from the original on 28 April 2026. Retrieved 28 April 2026.
1 2 Carvalho, Juliano Maurício de; arita, Carmem Harumi; Nunes, Alesse de Freitas (1999). A política de implantação da Internet no Brasil (PDF) (Thesis) (in Brazilian Portuguese).
↑ Tigre, Paulo Bastos; Rovere, Renata Lêbre La; Fagundes, Jorge (1995). Tecnologias da informação e desenvolvimento: novas evidências sobre sua difusão e impactos econômicos (Thesis). Embratel.
↑ Pires, José Cláudio Linhares; Piccinini, Mauricio Serrão (1997). "Serviços de telecomunicações: Aspectos tecnológicos". Ensaios BNDES (in Brazilian Portuguese). 5. Brazilian Development Bank.
↑ Carvalho, Marcelo Savio; Cukierman, Henrique Luiz (2019). "the dawn of the internet in Brazil". Revue Histoire et Informatique / Zeitschrift Geschichte und Informatik. Chronos: 79–84. doi:10.33057/chronos.1539.

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