PS2 connector is in these day present almost in every computer. It is used to connect keyboard or mouse (or some else pointing device). This article contains information about connection, communication (host-to-device and device-to-host) over ps2 port and also about coding of keyboard

Asymmetric digital subscriber line (ADSL) uses existing twisted pair telephone lines to create access paths for high-speed data communications and transmits at speeds up to 8.1Mbps to a subscriber. This article explains the basic function of ADSL transceivers and their modulation scheme.

Why you should use the Java for Embedded Systems? Java is a modern object-oriented programming language. Java allows for direct implementation of the analysis and design models. Here is a few Java devlopment tools for Embedded systems.

A full-featured simulator for serious analog designers. Sophisticated, internal models allow you to simulate everything from high-frequency systems to low-power IC designs. Draw on the expansive library of models to create off-the-shelf parts, or create models for new devices. Fully explore the relationships in your design with "what if" scenarios before committing to final implementation.

This document provides an introduction to intelligent modems, the AT command set and the concepts behind many of the commands. The AT commands are used to configure the modem to your preferred operating mode and to instruct the modem to do what you want it to do.

This article describe how to create programmes working with hardware under Windows one should use API's funntions. Here is a few indispensable functions which you need to establish communication. For example funtions to open and close connection, set the connection parameters and functions used to read or write the information from/into the port.

This article is intended to help the designers sort through the various features available in RS-232 interface products. The main features described are the regulated charge pump, Autoshutdown, RS-232 compatible versus compliant operation, ESD protection, and data rates including Megabaud operation

Description of IrDA standards, explanation of MODULATION of infra-red devices (the Pulse Code Modulation, the Frequency Shift Keying-FSK, the Bi- Phase Modulation, The Pulse Width Modulation-PWM) and TRANSFER PROTOCOLS (the RC-5 protocol, the NEC protocol, IrDA). See for more information...

Maxim Integrated Products introduces the MAX3465-MAX3469, fail-safe, 40Mbps Profibus transceivers. These devices are high-speed, differential-bus transceivers for RS-485 and RS-422 communications. They are designed to meet TIA/EIA-422-B, TIA/EIA-485-A, V.11, and X.27 standards. The transceiver complies with the Profibus specification.

Power-over-Ethernet (PoE) is an emerging new technology that enables delivery of data and power to internet appliances over existing CAT-5 Ethernet cables. PoE is rapidly gaining in popularity with manufacturers and end users of devices such as VoIP phones, wireless access points, security cameras and point-of-sale terminals. PoE is governed by the standards defined in the recently ratified IEEE802.3af standard.