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Computer Aided Design

Computer Aided Design (CAD) is the act of using computers to design an object. CAD techniques follow standard engineering design and drafting procedures, but use a computer to help speed up the process.

1,069 Questions

What supply voltage does a computer need?

It all depends on the machine PSU(Power Supply Unit), usually 80v-150v or as I have constructed before a 20v computer so it's the same as saying 'How long is a piece of string?'-

The Computer power supply takes in the 120-240 volts coming from the A/C outlet and reduces it to 18 volts D.C. to run the System board and peripheral's in the case, i.e. DVD ROM, CD ROM, HDD, Graphics card and CPU fan. Your monitor as well runs on 18 V.D.C. which is again reduced from the 120 - 240 volts A.C. through the power block, (transformer).

What is a giraffes ecosystem?

a giraffe ecosystem is a bunch of giraffes living in one place with elephants and lions and lots of grass an trees with lots of other animals.

Difference between analog simulator and digital simulator?

The big difference is inputs and outputs. Digital ICs expect high/low true/false inputs and outputs. Analog ICs take any inputs, and produce outputs of any level. For example, an audio amplifier is an analog IC. It takes an analog input (sound), and produces an analog output (louder sound). A ripple counter is an example of a digital IC. It takes a digital input (clock pulses), and produces a number of digital outputs (the digital outputs of the flip flops, collectively representing a number in binary).

Is civil engineering the same as structural engineering?

Civil engineering covers a broader spectrum. Civil engineering students study Structural engineering, water engineering, Geotechnical engineering (soil mechanics) and Traffic and Transport engineering. With a civil engineering degree, graduates have the opportunity to and are qualified to work in any of the above fields, or they can persue further studies in one particular area, and therefore obtain more thorough and specific qualification in that area, such as structural engineering.

How does a half adder work?

A full adder has three inputs - A, B, and CarryIn from the prior stage. It generates a Result and a Carryout with the truth table...

ABC-RC

000-00

001-10

010-10

011-01

100-10

101-01

110-01

111-11

The adder can be a ripple adder, in which the propogation delay depends on the carry "rippling" through the logic, or it can be a look-ahead-carry type, which has constant propagation delay time, at the expense of more logic.

How must the two transistor junction be biased proper transistor amplifier operation?

A: Actually it is only one transistor required for amplification the other junction can be a diode. As current Begin to flow it causes a bias across one junction which is opposite biasing for the other, A good differential amplifier will have those junction virtually at the same point with a very good current source because any mismatched will cause and output without any input. It is called voltage offset on the other end if the feedback current is very small it will also produce an output voltage offset known as current offset or basically errors

How do you design a half-adder using NOR gate?

Use 4 NOR gates.

For the 1st NOR gate, inputs should be x' and y

For the 2nd NOR gate,inputs should be y' and x

The outputs of NOR 1 and NOR 2 are taken as inputs of NOR gate 3

The output of NOR 3 is the complemented form of the output required, so, just complement the output of NOR gate 3 with another NOR gate and Viola!, you have your HALF ADDER OUTPUT

PS:I have used a double rail logic, where both x:x' and y:y' are available

What is the full form of AUTOCAD?

it's a software developed for 2D and 3D application FOR DRAFTING. It is developed and sold by autodesk,inc. and it was called as 'AUTO'. AND cad/cam :COMPUTER AIDED DESIGN/ COMPUTER AIDED MANUFRACTURING. CADD: COMPUTER AIDED DESIGN AND DRAFTING.

Difference between positioning and pointing computer devices?

pointing device like mouse because by mouse we can perform operations graphically. and positioning devices like keyboard.....

What is a heap?

Answer:- A sorting algorithm that works by first organizing the data to be sorted into a special type of binary tree called a heap. The heap itself has, by definition, the largest value at the top of the tree, so the heap sort algorithm must also reverse the order. It does this with the following steps:

1. Remove the topmost item (the largest) and replace it with the rightmost leaf. The topmost item is stored in an array.

2. Re-establish the heap.

3. Repeat steps 1 and 2 until there are no more items left in the heap.

The sorted elements are now stored in an array.

A heap sort is especially efficient for data that is already stored in a binary tree. In most cases, however, the quick sort algorithm is more efficient.

GOURAV KHARE (CHANDIGARH)

gouravsonu89@gmail.com

What are the advantages of the cad drawing system over the manual drawing board system related to architectural work?

CAD has many advantages over drawings, but drawings are still very important.
With CAD it is easy to make changes quickly as the design progresses. You can see in a 3D environment what the part will look like more easily. The model information can be sent to a CAM application or to vendors. You can get mass analysis information with a 3D Solid package. You can, depending on what package you use, put into the model Programming, that will ask for input information and get an updated model based on what you input. Again, depending on the CAD package you are using, you can make multiple parts in the generic part, and get different sizes of a similar part.
You can get drawings from the CAD model, and if changes are made the drawing(s) will update accordingly.

What is the full meaning of spss the answer should be related to computer?

SPSS(originally, Statistical Package for the Social Sciences, later modified to read Statistical Product and Service Solutions) was the first application program written to that the non-programmer user could enter data and specify the processing of the data.

What is the latest version of AutoCAD?

AutoCAD has a flexible subscription model, with new features available with each release and product update. If you have a perpetual license of AutoCAD 2016 or earlier, here’s what’s changed in AutoCAD 2017, AutoCAD 2018, AutoCAD 2019, AutoCAD 2020, AutoCAD 2021 and AutoCAD 2022.

What are the benefits of CYMK Color?

There are 2 benefits of CMYK colors:

  • You can preview your work to see how it will look like when printed (preview is very close not exact)
  • Files with CMYK colors are ready for professional offset printing.

What do you want to learn about or accomplish at work?

You want to accomplish whatever your work has set out to do. Learn whatever you need to learn to become a better worker so you can help provide for the community.

If 'x' is an input which then has two conditional outputs p and q.What would be the state diagram?

Its deterministic.

See the diagram here: http://i45.tinypic.com/25hzskj.jpg

here a, b, p, q are states (outputs) and x, 0, 1 are inputs.

What types of locations can hold source and destination operands?

Source and result operands can be in one of four areas:

Main or virtual memory: As with next instruction references, the main or virtual memory address must be supplied.

• Processor register:With rare exceptions, a processor contains one or more registers that may be referenced by machine instructions. If only one register exists,reference to it may be implicit. If more than one register exists, then each register is assigned a unique name or number, and the instruction must contain the number of the desired register.

• Immediate: The value of the operand is contained in a field in the instruction

being executed.

• I/O device: The instruction must specify the I/O module and device for the operation.If memory-mapped I/O is used, this is just another main or virtual

memory address.