Computer-aided design (CAD) is the use of computer systems to aid in the creation, modification, analysis, or optimization of a design. CAD software is used to increase the productivity of the designer, improve the quality of design, improve communications through documentation, and to create a database for manufacturing. CAD output is often in the form of electronic files for print, machining, or other manufacturing operations.
Computer-aided design is used in many fields. Its use in designing electronic systems is known as electronic design automation, or EDA. In mechanical design it is known as mechanical design automation (MDA) or computer-aided design (CAD), which includes the process of creating a technical drawing with the use of computer software.
CAD software for mechanical design uses either vector-based graphics to depict the objects of traditional drafting, or may also produce raster graphics showing the overall appearance of designed objects. However, it involves more than just shapes. As in the manual drafting of technical and engineering drawings, the output of CAD must convey information, such as materials, processes, dimensions, and tolerances, according to application-specific conventions.
Wo oh oh
wo oh oh, wo oh oh oh
wo oh
Now baby I been thinking bout how you been acting strange
and baby I been thinking how so many things have changed
in my life, in my home, in my bed
said I remember how you used to love
How you used to love, you don't love no more
how you used to care, you don't care no more
that's alright, that's ok
drop the key on your way
catch a bus, ride the train
it doesn't matter just keep going
Now boy I can remember how I used to foot the bill
and yes I do regret the day I took your broke ass in
to my life, to my home, to my bed
said that I must have lost my head
I guess you thought that I'd let you walk on me like the floor
I gues you thought that you'd keep tracking dirt inside my door
you got it all wrong
it's been too long
all of the love is gone
now I'm singing you this song
How you used to love, you don't love no more
how you used to care, you don't care no more
that's alright, that's ok
drop the key on your way
grab a bus, ride the train
it doesn't matter just keep going
How you used to love, you don't love no more
how you used to care, you don't care no more
that's alright, that's ok
drop the keys on your way
grab a bus, ride the train
it doesn't matter just keep going
You must have thought that you were getting over for so long
but I was giving you the chance to make things right from being so wrong
but your time is up, took too long, I don't wanna hear it
get your shirt, shoes, pants and draws up from outta here
Oh oh oh oh
wo oh ooh wo
woo woo oh
Like you used to love, you don't love no more
how you used to care, you don't care no more
that's alright, that's ok
drop the keys on your way
grab a bus, ride the train
it doesn't matter just keep going
How you used to love, you don't love no more
how you used to care, you don't care no more
that's alright, that's ok
drop the keys on your way
grab a bus, ride the train
it doesn't matter just keep going
Oh oh oh