A well packaged, impressively documented suite of programs designed for students of 13-plus and aimed at O-Level and CSE computer studies.

It features flowcharts, CESIL (an introduction to machine language), logic gates, truth tables, Karnaugh maps, bases and a logic processor. Each is graphically illustrated and accompanied by enough BEEPs to drive you map if your Spectrum is amplified!

None of the programs can actually teach its subject, though the manual helps. It will, however, show up areas in which you are weak and give pointers. In effect, you are asked to respond to prompts and the computer will draw the flowchart, print the truth table, calculate the number in base 96 or show the logic system you've designed.

Perhaps the most valuable feature is the built-in revision advice which considers how long you have until your exam and tailors suitable revision for you. Add to that, a built-in mock exam, complete with grade estimator, and you have a really first class Dutch uncle.

A useful package, but some sections are difficult to load and there is still some poor error trapping of user input.

D.M.