Sub-£100 modems are becoming more common, bringing the cost of various types of networks down to home users at least as far as the initial investment is concerned. The latest is the Telemod 2, which costs £84 from OEL (0768 66748). This is a V23 modem which sits beneath your telephone and is supplied with an extension British Telecom connector. It will connect to most micros via an RS232 or serial port. For viewdata connections OEL sells the appropriate interfaces in comms packages from £15 to £80. Telemod 2 is British Telecom approved.