CAD programme, or Computer-aided design, is a design and technical documentation technique that automates human drawing. Computer-aided design (CAD) is the process of developing computer models that are specified by geometrical parameters.
These models are usually shown on a computer monitor as a three-dimensional representation of a component or system of components that can be easily changed by altering key parameters.
Designers can use CAD systems to view objects in several forms and test them by simulating real-world situations.
It is possible to create a complete model in an imagined environment using a CAD programme.
This software allows you to see height, breadth, distance, material, or color characteristics before implementing the model for a specific purpose.
CAD technology is used in the design of tools and machinery and the drafting and design of all types of buildings, ranging from small residential structures (houses) to the largest commercial and industrial structures (hospitals and factories).
It may also be used to create things like jewellery, furniture, and appliances. Furthermore, many CAD programmes now include sophisticated rendering and animation features to help engineers visualize their product ideas.
Originally, software for CAD systems was written in computer languages like Fortran and ALGOL, but with the development of object-oriented programming techniques, this has changed dramatically.
Modern parametric feature-based modeller and freeform surface systems are often developed around many-core C modules, each with its API.
A CAD programme may be thought of as the result of a graphical user interface (GUI) interacting with NURBS geometry or boundary representation (B-rep) data through a geometric modelling kernel.
A geometry constraint engine may also handle the associative connections between geometry, such as wireframe geometry in a drawing or assembly components.
Because of the unexpected possibilities of these associative connections, a new kind of prototyping known as digital prototyping has emerged.
Unlike physical prototypes, which need manufacturing time in the design. Nevertheless, a computer can create CAD models after scanning the actual prototype using industrial CT scanning equipment.
Depending on the nature of the organization, digital or physical prototypes can be first selected based on particular requirements.
CAD programmes are available for all main platforms (Windows, Linux, UNIX, and Mac OS X); some packages support several platforms.
Most CAD software does not need any specific hardware. Some CAD programs, however, can do visually and computationally demanding tasks. Thus a contemporary graphics card, high speed (and potentially several) CPUs, and huge quantities of RAM may be required.