Pc based system for monitoring, controlling, accounting, and measurements

الملخص EN

The appearance of the computer and its development and widespread in all fields accompanied with the needs for using computers technique & abilities in communication to facilitate the connection process and to simplify the communication devices circuits.

It is also to add features to the Computer-Based System which might not appear without the using of computers & digital technique and interface, for example, if you want to use a powerful processor such as Z80 or microcontroller such as 8051 or 8048 for driving your system, you will face many of obstacles such as connection of RAM, ROM and I / O peripherals to the μ processor or microcontroller, such many problems that you will find will be nothing with a computer.

We can say that the computer-based system can inherit all power features of Computer (Storages, Recording, Accounting, in Telecommunications etc.) In this paper we well show the new designed System for controlling and accounting phone calls by using new designed interfacing circuit to PC via LPT port and its advantages over an expensive commercial one.