The home is the place where people should feel the most comfortable. Considerable technological development is dedicated to making the home more comfortable; smart appliances are a good example of this. There is always a market for products that provide easier control of home appliances and electrical devices. With this in mind, I have designed and implemented a PC-controlled Home Automation System (HAS). This HAS allows complete control of home appliances and electrical devices from the homeowner's IBM-compatible PC. make use of advanced technology in the transmission of the control signals by way of power-lines already present in the home. The HAS greatly increases the comfort of the home.