The first commercial printers generally used mechanisms from electric typewriters and Teletype machines. Even manual typewriters or daisy wheel printers could be used. These often incorporated keyboards from existing models of typewriters and printing mechanisms of dot-matrix printers. IBM expanded into electric typewriters and other office machines. Scribes with typewriters and antique printing machines work in this Portal. Most manually operated typewriters use monospaced fonts. OKI began producing and supplying business machines such as Teletypewriters, and perforation typewriters. About $200,000.00 in computers and typewriters were seized. This was mainly done to include Malayalam in the keyboards of typewriters and computers. Later, Burroughs was selling more than adding machines, including typewriters. They installed the bugs in Selectric II and Selectric III electric typewriters. At that time, the tilde was used only in Spanish and Portuguese typewriters (keyboards). The notation formula 217 is convenient in handwriting but inconvenient for typewriters and computer terminals. The standard Windows keyboard is essentially that of manual typewriters. The IBM Wheelwriter series of electronic typewriters are one common application.