TACL (Tandem Advanced Command Language)
TACL (Tandem Advanced Command Language) is the scripting programming language developed by Tandem Computer Inc., and used in Tandem Computers. After the purchase of Tandem computers by Compaq and further by HP, currently Tandem computers are known as HP Nonstop and TACL continues to be the scripting language used on Hewlett Packard NonStop Servers. NonStop servers are key components of the backbone infrastructure of the largest banks, casinos, retailers, telephone companies, email systems, and stock exchanges worldwide.