HEATKEYS

KVM Solutions that work. Vetra Systems manufactures a complete line of mission-critical KVM products, from KVM Switches, KVM Splitters and Multiplexers, to PC keyboard encoders, port terminators and emulators, and protocol converters

AnandTech computer tech forums

Paul and Robin

Instructables is the Biggest How To and DIY community where people make and share inspiring, entertaining, and useful projects, recipes, and hacks.

Beyond Logic includes detailed information on Universal Serial Bus, Serial Ports (RS232), Parallel Ports (SPP/ECP/EPP/IEEE1284), Device Drivers and more. Most texts also come in PDF for easy Download & Printing

AtomiCorp

MathWorks is the world’s leading developer of technical computing software for engineers and scientists in industry, government, and education

Pololu is your source for robot kits, robot parts, robot electronics, and custom manufacturing services, including custom laser cutting and mylar solder paste stencils for SMT soldering.

Information, tools, and books for programmers and system designers involved with USB, the PC

Low-cost World-Class-Lab Certified RS232 RS485 RS422 TTL USB Serial Fiber Optic Converters. FREE or EXPRESS Shipping, 30Day Return/5Yr Warranty.