3DLabs Alliance Appian Graphics ATI Technologies Avance Logic Cirrus Logic

Creative Labs Dell Diamond Fujitsu Hercules Matrox

OpenGl.org Philips Pinnacle Systems Sigma Designs SiS VideoLogic

Aztech Labs Creative Labs Diamond

Mitsumi Panasonic Sony

Soundcard-drivers.com Turtle Beach

What is a BIOS? The BIOS can be considered the "startup" software for your PC. It controls several important functions, like input/output, and without it your PC will not run. A bios upgrade can be advantageous if you experience device compatibility problems, or other more general non-tracable errors. When everything seems to cause problems on your computer, think of a BIOS upgrade. To find the program (or ROM memory CHIP on older systems) which can upgrade your bios, you usually need to know which motherboard is inside your computer. A ROM memory chip you have to buy, but most newer systems allow you to update the BIOS automatically after running a small program you can download freely.
Bios-drivers.com	Bios updates organized by company.
Bios Central	The largest and most complete PC Bios site we found so far.
Wim's Bios Page	Excellent site with bios information, updates, bios numbers, bios utilities, FAQ, reports, etc.
The Flash Bios site	Site about PCs BIOS flash upgrades.
The Bios Web	'A source for PC ROM Bios'.
Bios companies	Ami Intel Phoenix (and Award)

What is a driver? A driver is a program or dll that controls a device, e.g. a printer, CD-writer, keyboard or a soundcard. If your system does not contain the correct driver for a device, the device will not function at all, incorrectly or your computer might crash. Downloading the correct driver might solve the problem.
c't drivers service	Useful site with many links to hardware/download Websites of manufacturers. Language: German.
Download.com	A large listing of Windows drivers.
Driver Pit.com	Files listed alphabetically and by hardware type.
DriverGuide.com	After signing up (only fill in your email address) you have access to a site with driver links.
Drivers Kit	Large hand-picked database of hardware drivers for free download.
Drivers Planet	25,000 driver-downloads by over 500 manufacturers.
DriverSearch.com	Driver search engine.
DriverStock.com	A large collection of drivers categorized by manufacturer and hardware type.
DriverZone	Driver-downloads categorized by hardware type.
Input-Drivers.com	Downloads for Mouse, keyboard, and other input devices.
Intelligraphics	Custom device development for hardware manufacturers.
Karl's PC Device Drivers Site	Downloads, Manufacturer Links, FAQs and PC Help forums with tons of advice.
Lost companies	The company which created your hardware component might no longer exist. This page lists companies which went out of business or have been acquired by another company.
Modem-Drivers.com	Downloads for Modems, organized by company.
nodevice.com	Excellent download site for Windows drivers.
PCDrivers.com	Large site, listing the most up-to-date driver-downloads.
StorageDrivers.com	Scsi, ide, drive, tape backup, and other storage related driver-downloads organized by company.
SupportTech	Downloads, upgrades, patches.
techno-world	Free drivers, firmwares and bios upgrades for download.
The Driver Forum	Online discussionforums, for driver hunters to ask about, discuss, and share device-driver files of all types.
Treiber-Archiv.de	Useful site with many links to driver sections of the Websites of manufacturers (German).
UpDrivers	Free device drivers for Windows and BIOS upgrades.
USB-Drivers.com	USB device downloads organized by company.
WinDrivers.com	Non-free: the membership fee is $50 per year.

What is a DLL? 'DLL' is an abbreviation of 'Dynamic Link Library'. A DLL file can be part of a program or of the Windows operating system. When you miss a certain DLL, or have the wrong version of a DLL installed on your computer, your system can crash or behave strangely, or a program might fail to function. Solution: download the right DLL and install it on your system!
5Star Support DLL File Downloads	Hundreds of common and not so common DLL files for free download.
DirectX	Download page for Microsoft DirectX dlls.
DLL Base	Free Windows DLL Files.
DLL Help Database	Database with information on DLL files shipping with Microsoft products.
DLL World	DLL-files for download, organized by filename.
DLL-Download.net	Windows DLL's for download, alphabetically sorted.
DLL-Downloads.com	Dll's, ocx files, drv files + tech support.
DLL-files.com	DLL-files for download organized by filename.
DLLlab.com	Free download of Windows DLL files.
The Dynamic Link Library	Recommended! Very large and well-organized DLL download site. Also has a large collection of OCX, SYS, VXD and INF files.
Visual Basic	To run applications created with Visual Basic, you need at least one of these vbrun dlls.
www.afreedll.com	Download and restore missing .DLL files
www.dlldll.com	Free Windows DLL Files.

freeCAD	A fully functional free Dynamic Simulation Software. Mechanisms are represented by connected or assembled joints of 3D solids with defined constraints, actuators, springs, dampers or forces. In addition to pure geometric and connection information, mass, moment of inertia, gravity, force and torque information are also modeled and used to predict the motion according to Newton's Laws. Animation using the simulated data produces realistic dynamic behaviour of the system under study. @1MB Created by: Aik-Siong Koh. Screenshot
Watt	A refreshing approach to Mechanism Design courtesy Heron Technologies, which rather than analyzing an existing mechanism, can be used to create mechanisms based on required co-ordinate movement, constraints on pivot locations, transmission coefficients, accelerations, dimensions etc. An excellent program that offers solutions to user specifications rather as against the old painful approach of trying to find out the right mechanism that works. Very easy to use friendly Windows interface, however the "Save" is crippled. @1.3MB Created by Heron Technologies Screen Shot
MBDyn	Command line free multi-body dynamics solver. A free graphical user interface can be download from OSEngineer Created by University Politecnico di Milano, Italy
Universal Mechanism	Simulation of kinematics and dynamics of planar and spatial mechanical systems. Mechanical systems are described by means of representing them as systems of rigid bodies connected by various kinematical pairs and force elements (multibody systems). Online animation of motion and plots of dynamical performances are available during simulation. There are lots of measurable dynamical performances of mechanical systems: linear and angular coordinates, velocities and accelerations, active forces and moments, reaction forces etc. Created by: Universal Mechanism Screen Shot

AMSES	A family of computer programs related to structural analysis and design. Special attention is given to the design according to European building codes, also known as Eurocode(s).
AutoCAD	AutoCAD and Autodesk trial versions.
AxCom	Free shaft dimensioning software: calculate strength, stress, strain, deflection, and safety factors.
CFD Freeware	CFD codes list - free software.
CFD Shareware	CFD codes list - shareware products
COSMOS	Trial versions of: design analysis and optimization software, simulation and kinematics software, computational fluid dynamics software, 3D-field simulator for low frequency electromagnetic/ electromechanical applications.
Delta Cad	2D CAD program, 45-day trial.
EdgeCAM	One year free NC Editor Pathtrace
Engineers.com	Spur Gear Analysis Analysis software and assorted mix.
FesaWin	Free FEA (only 50 nodes)
Fluid Power Net	A list for Dynamic Simulation Software for Fluid Power
GASP	Computational fluid dynamics(CFD) software. 60-day demo.
Gerotor Design Studio	Design, modelling and manufacture of gerotor pumping elements. 10 trials only
Get Psyched	Shareware that calculates Psychrometric properties. Displays the results on a graphical plot. 30 day trial
Gyles AeroDesign	Useful suite of programs to assist airplane modelers in improving the aerodynamic properties of their designs.
Jehar	Steam andWater flow in pipes
Maxsurf	CAD/CAM for the design, analysis and construction of marine vessels.
MNS/ADNR	Structural and acoutic vibration analysis. 30 day demo.
MSC.visualNastran 4D	Mechanical simulation software. Demo available.
Multiframe	Stuctural CAD software.
Online FEA	Free FEA software in Java which you can run online in your Webbrowser.
Pipe and Gas flow	Free pipe flow and Gas flow software.
RCCAD	RC CAD is an acronym for "Radio Control - Computer Aided Design". It is specially designed to help modelers to create airplanes. It supplies a real-time 3D visualization of the model you are designing.
RealCADD	2D Computer Assisted Drawing program. Demo version available.
SoftCAD.3D	3D architectural CAD program, 1 month free trial.
Solid modeling and 2D CAD	Solid modeling and 2D CAD system. 30 day trial.
Steam Properties	Shareware program for calculating Steam and Gas properties, flue gases etc
StlWork	A low cost 3D solid/surface tool path development system for CNC milling or routing (also known as CAM programming). 1-month trial version.
Student's QuickField	Freeware FEA program for electromechanical devices. It is a full-featured analysis program with a limited number of mesh nodes. For PC.
TabiCAD	TabiCAD imports tables from MS Office documents into AutoCAD 2000 and R14
Tecplot	CFD data visualization software.
Thermodynamics on-line help	Thermodynamics on-line help is a help file in MS Windows help format. Topics are: fuels, heat, energy, exergy, thermodynamics laws, heat engines, gas turbine, steam turbine, combustion, etc.
TrueGrid	Hexahedral Grid and Mesh Generation for Fluids and Structures.
Vibrationdata.com	Software for Vibration analysis, shock analysis, signal processing.
Working Model	Motion simulation and testing program. Demo version available.

WinTherm	A thermal modeling analysis software with full geometry, editing, analyzing and post-processing capability. It comes with a helpful tutorial . This is a demo of their current commercial release, so it will definitely have some features crippled. Most likely it will be the maximum nodes that can be solved for. Created by ThermoAnalytics
SINDA/FLUINT	A generalized Thermal/Fluid network analysis program. Also, download SinapsPlus on the same page which is a graphical user interface for Sinda/Fluint. This evaluation version is limited to 50 nodes (temperature points in thermal networks) and 10 lumps (control volumes in fluid networks). The SinapsPlus GUI has the "Save" disabled. Created by Cullimore & Ring Technologies
TAS	This is a general thermal modeling analysis software.It is a demo with the "Save" function crippled.The number of nodes is limited to 300. Created by Harvard Thermal Inc

Mach	CNC control software to drive a wide variety of machines (upto 6-axes) using a Windows PC. It uses the printer ports of a PC to drive the Step and Direction type of Stepper Motor and Servo Controls. Free version is limited to 1000 lines of G-code. Screenshot. Created by ArtSoft.
LinuxCNC	Open source CNC control software for machine tools such as milling machines, cutting machines, robots, etc.

G-Simple	Completely free simple yet powerful software for 3-axis mills, use it to create G-codes for drilling, milling, engraving, tapping & pocketing. Created by Sotiris Kontogiannis Screenshot
GCAM	Open Source software for 3-Axis CNC mills. Simple interface for making holes, and sketches, which after extruded, provide the cutting paths for the selected end mill. GCAM also supports RS274X (Gerber) and Excellon drill files for circuit board milling.. Screenshot
SolidCAM	A powerful CAD/CAM system with the "Save" crippled, for those who want to learn 3D modeling and part programming for milling or turning in a Windows environment. Also download the QuickStart Tutorial for milling and turning, but, to view the Tutorial you'll need MSWord 7.0 or the freeware MSWord 7.0 viewer . You can receive a free CD with all the software and tutorials by entering the download area and clicking the link SOLIDCAM CD-ROM. @20MB. Screenshot. Created by CADTech.
ProFold	Free give-away of CNC turret punch press CADCAM till Sept 30. Created by Applied Production, Inc.
OneCNC	A range of various Windows based CAD/CAM software with the "Save" crippled. Separate CAD/CAM systems are available for each of the following : milling, lathe, waterjet, wire EDM, laser, Turret Punch. Screenshot. Created by QARM PTY Ltd
BobCAD	Software for 3-axis milling, lathe programming and wire EDM, with the "Save" crippled. @ 4.4MB. Screenshot. Created by BobCAD
Powerstation	This is a 21/2 axis CAD/CAM software for Mills, Lathes, EDMs and waterjets. The "Save"utility is crippled as also the NC editing function. @3.5MB. Screenshot. Created by Microcimm Corp
EZ-CAM	CAD\CAM for milling, turning, EDM, & engraving. Screenshot. Created by EZ CAM Inc.
VisualMill	CAD/CAM software for milling. Very easy to use in a freindly Windows environment with all features functional. The only crippling being done, is on the "Save" being disabled as also the G-code post-processing. @2.5MB. Created by MecSoft Inc
FeatureMill FeatureMill3D FeatureTurn	A very easy to use CAD\CAM software for 21/2, 3 - axis milling and turning. The "Save" and post-processing for G-code have been crippled. Screen-Shot. Created by EGS Inc.
CodeShark Lite	CodeShark Lite is a free version of the main CAD/CAM system CodeShark. The full CodeShark version is also available for download, but it functions only for one month. The main features of CodeShark include G-Code programming wizards for tool start, drill start, bolt-circle, grid, pocket milling, thread milling, turn-facing, turn-roughing, serial number engraving. A CAD tool with DXF file import, tooling, trigonometry and unit conversion calculators. Other helpful options such as multiple machine configurations and G-Code analysis help optimise cutting strategies. CodeShark Lite however comes without the CAD integration or the programming wizards. Screen-Shot of CodeShark Screen-Shot of CodeShark Lite Created by Soft Squad Software
e NC	For 2D programming, e-NC can mill pockets islands, holes (include threading with a mill tool), engraving (with all windows font). e-NC can import DXF, DWG and IGES files. Software is in the French language. Limited free download. Screen-Shot of e-NC Created by ERCII
SprutCAM	2D & 3D milling, engraving, laser, plasma, water & stone cutting. Works with all CAD file formats and unlike most other systems does not convert the CAD data but works on it directly. The "Save" is crippled. Distribution only by demo CD request. Created by AES
KZX	Cad/Cam program for drawing and producing G-codes for sheet metal parts. Created by KZX Software
QPS	Software for calculating sheet layouts and how many parts you get to a sheet, useful for pricing and cost estimating. Screen-Shot Created by MGS Ltd. Ireland
VX	You'll have to fill up a form for them to reach you at. It's a 21/2 to 5 axis CAD/CAM with the "Save" crippled, but it's got a good CAD modeler with shape healing, solid morphing, hybrid unions of solids & surfaces. Created by VX Corporation
CNC Simulation
AutoEditNC	AutoEditNC is a specialized text editor with NC code creation tools for 2D machining and tool-path simulation. It's an excellent program for learning CNC programming. Screenshot. Created by Beta Technical Solutions, LLC .
CNCSimulator	2D and 3D simulation of both turning and milling machines. It has an NC editor and ports for communicating to CNC machines. Although it's completely free software, they require you to download what they call a "petrol file" every couple of months to keep the program working on your computer. Screenshot. Created by MicroTech .

Anim8or	Free 3D modeling and character animation software. Create figures, sequences, scenes, materials & animations. Created by R. Steven Glanville Screen-Shot
Blender	Open source 3D modelling software for animation & rendering. Screen-Shot
JahShaka	Open source real-time editing and effects System, for Windows, Linux & OsX.

Columbus	A very simple interface for viewing almost any CAD format. Can be used in a Networked Environment. Lots of features, and registration is absolutely FREE. @ 16MB. Created by Arup Inc
AutoVue	AutoVue is a visualization and collaboration Viewing and Markup software which can natively view over 200 different document formats including Pro/ENGINEER, AutoCAD, MicroStation, CADKEY, CATIA, Inventor, Mechanical Desktop, SolidWorks, SolidDesigner, Solid Edge & STEP. A JAVA thin-client version is available. A fully functional evaluation versions of all programs are available for download. However, it puts a watermark on your drawing. Created by Cimmetry Systems
iges2step	Allows viewing IGES and STEP files and translating between them.
VIEWPlot	Viewplot allows you to inspect various CAD formats, take measurements and manipulate data.Create high resolution PDF documentation within the graphical user interface or in batch mode. Supported Input formats: Gerber(X), DXF, Drill, Hpgl. Created by Roneda
VariCAD Viewer	Viewer to for VariCAD created drawings. Created by VariCAD
AutoDesk Viewer	To view and print DWF files. Created by AutoDesk
PS Exchange	Free powerful stand alone CAD translator program capable of translating from many popular CAD input formats to many output formats. Created by Delcam Plc.
Bentley	A CAD file viewing for DGN, DWG and DXF file formats. Created by Bentley
DevCAD	Freeware DXF, DXB, DWG converter. Created by DevCAD Team
Solidworks Viewer	eDrawings Viewer allows viewing of native AutoCAD� files (DWG and DXF) and native SolidWorks parts, assemblies, and drawings. Created by Solidworks Inc.

DesignWorkshop Lite	Build 3D models for home design, visualization of architecture, landscapes, exhibits, or any kind of spatial design with DesignWorkshop Lite, courtesy artifice Inc, you can also view and walk-through ready-made models created in 3DMF format, DXF, Design Workshop etc. Created by Artifice Inc
ArchT	Architectural software for IntelliCAD and AutoCAD. Created by Autodsys
AllyCAD	This is a free version that limits the size of the model file you can save. Suitable for civil, structural, architectural and surveying needs. Created by Knowledge Base Pty Ltd
Cambridge	Specifically designed to facilitate map creation, it has an interface for 3D digitizers and stereo plotters and a mask programable interface so that it can communicate directly with ANY 3D digitizer or stereo-plotter!. Screen-Shot Created by Westbrook Enterprise LLC
CYCAS	Architectural software for drafting and design in 2D & 3D. Rendering is provided by the freeware POV-Ray engine. The freeware version of their commercial product is restricted to using just one layer, printing to only A4 size, there may also be additional limits to the features offered. Screen-Shot Created by Verlag A.C.Frese For Windows & Linux
KREOnet	For laying out tiles & mosaics on floors & walls with texturing. Screen-Shot Created by Iris Fabbrica Marmi e Graniti For Windows
SketchUp	3D CAD from Google. Created by Google Inc.
Octree	The beta releases are free for now. It's a revolutionary idea in interface design that maximizes the screen space for drawing. Created by FCA GmbH and GbR HNS Platform - Unix & Windows (some limitations on Windows)
Envisioneer Express	Simple creation of floor plans, 3D models, and interior design concepts, it uses real world objects such as walls, doors, windows and stairs. Very easy to learn. Created by CadSoft Corp.

Eagle	The EAGLE Layout Editor is an easy to use, yet powerful tool for designing printed circuit boards (PCBs). It can create CAM files for EXCELLON & GERBER. The limitations of the freeware version are as follows - the useable board area is limited to 100 x 80 mm (4 x 3.2 inches). only two signal layers can be used (Top and Bottom). the schematic editor can only create one sheet. Screen-shot. Created by CadSoft Computer GmbH.
Electric	The ElectricTM VLSI Design System is a complete Electronic Design Automation (EDA) system that can handle many forms of circuit design, including: Custom IC layout , Schematic Capture (digital and analog), Textual Languages such as VHDL and Verilog, Electro-mechanical hybrid layout, Programmable logic (FPGAs). Screen-Shot Created by Static Free Software
PCB Elegance	Schematics and PCB layout. Free version restricts the number of pins to 200. Screen-Shot Created by Merco Electronics
AutoTRAX	AutoTRAX integrates tools that include schematic capture, simulation, layout with autoplacement, autorouting and 3D visualization. Created by Kovac Software
CADSTAR	PCB design software. Free version limited to 50 library components and 300 pins. Created by Zuken.
LASI	LASI (LAyout System for Individuals) is a set of "general purpose" layout and design programs. It was not specifically designed for CMOS logic circuit layout, but most people use it for that purpose. LASI can draw schematics and can be used for most of the other graphical jobs of an IC project. Created by Dr.D.E.Boyce.
PCB123	Free schematic and layout software. Import Net lists from multiple CAD vendors, 145,000+ parts library, 2, 4, and 6 layer support, design rule check/design for manufacturing, copper pour with net connectivity. Created by PCB123
TimeGen	Allows a digital design engineer the capability to quickly and effectively draw digital timing diagrams. The waveforms can be exported to other Window programs, such as Microsoft Word, for use in writing design specifications. The "Save" and "Copy/Paste" are disabled, also limitations on the number of signals that you can add to the screen. Created by XFusion Software
McCAD	Collection of fully functioning electronic circuit design tools which are functional and can be used to create schematics, printed circuits, view Gerber documents, and run simulations. Free version has limitations on net, pin & board sizes. Runs on Windows & Mac. Created by McCAD Inc
Express PCB/SCH	Free Circuit Board Design and Schematic Design Software. Created by Express PCB
Rimu PCB	Electronic printed circuit board layout software, with the "Save" disabled. Created by Hutson Systems
Rimu Schematic	Electrical and electronic schematic capture software, free version limited to 100 pins. Created by Hutson Systems
KiCAD	Free open source software for electronic schematics & PCB layout, Gerber viewing layout, 3D viewing layout, an example interface is for viewlogic. Screen-Shot Created by Jean-Pierre Charras

Cap Completely free simple & smart 2D CAD program.
Screen-Shot
Created by Michael Henderson

free2Design Completely free 2D CAD program.
Screen-Shot
Created by think3.

APM Graph LV 2D parametric program. The only restriction is an absence of database that contains drawings of Russian standard details and manufactures.
Created by APM R & D.

Draft IT Good 2D drafting program. Light version of their commerical product.
Created by CAD Logic

BRL CAD The U.S army has released a CAD system to open source, which is now being enhanced by the open source community. It runs on Windows, Linux, Mac & Solaris.

Desi III A free fully functional 2D CAD program. The "Save" is working. A very professional program, and fairly easy to use. Although listed under Architecture CAD software, it can also be used for general mechanical CAD work. Good explanations have been provided for using the software. @2.5MB
Created by Hugo Marein