When I was a young man in the nineties my first job was working for the railways a a programmer on DB2 using COBOL and embedded SQL. I used a Big Iron. I worked for the biggest transportation company in South Africa at the time, and we could afford those IBMs and Amdahls. Other companies used computer bureaus. Computer bureaus would buy a mainframe or a mid-rand UNIX system and lease out time to clients. To connect to these mainframes and mid-range systems we used POTS. This was either a dial-up or a permanently nailed up link that relied mostly on 2400 baud serial based communications. To achieve these low speeds we did not use any fancy pants graphical interfaces but optimised green screens. In reality it was Cloud version 0.9!
Read the article over at LinkedIn here.
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