Just to remind any visitors to this blog how far technology has changed this business here are three charts from the 1980s. A French Franc line chart, Aussie$ 90day bar & daily T-Bonds. These charts could be printed off live on the trading desk when needed and were state of the art ( then!). All are simple black and white. The oldest two on fax type paper. Basic studies like ROC, RSI & MA's , Stochs became integrated into the software in the late 80's. The system were adequate but hand drawn charts still had the edge in my opinion. The most frequent use of this early software was usually to print of Time & Sales for customer disputes over bad order executions on futures trades !
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