Embedded computer software can be found in anything from video recorders to specialised test instruments. In all cases it makes a piece of electronic hardware perform a specific task. Many of these applications do not have the normal computer peripherals that can be used during software development. This bring special problems which have to be considered during the development. Embedded systems are often sold in large numbers, so added problems occur if a software upgrade is required. I have experience all of these problems (and more) over many different problems. I have successfully managed different embedded software projects. This list shows some the diverse applications:

• Point of Sale terminals; intelligent terminals that accept payment from credit and debit cards. The transaction may be processed immediately on-line or stored and sent to the host system overnight.

• Modems; Interpreting the commands from the host computer and controlling the hardware to manage the connection to the network.

• Network Monitoring; Different projects to manage the hardware that capturing network traffic from data and telecommunication links. Often required to have high reliability and able to cope with large data traffic loads.

• Data Networks; I have implemented protocol engines to handle the lower level protocols (e.g X.25 and SDLC) within public and private data networks.

• Test Instruments; Specialised hardware is often used to capture the information. The hardware has to be configured and managed and then the captured data analysed and presented to the user. I have experience with a variety of data network monitoring equipment and the presentation of complex information to non-expert users.

Some of these applications have been simple and programmed directly. Others are more complex and use different operating systems, e.g. VxWorks, Linux, and even Microsoft Windows.

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