Using the four basic application types introduced classify the following system and explain your classification
a point of a sale system in a supermarket ?
a system that sends out reminders that magazine subscriptions are due to be paid ?
a photo album system that provides some facilities for restoring old photographs ?
a system that reads wep pages to visually disabled users ?
an interactive game in which characters move around cross obstacles and collect treasure ?
an inventory control system that keeps track of what items are in stock when the level falls below a certain value ?