Questions tagged [computer-engineering]

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motion gesture and axis definition

I read something about defining hand gesture, which include mid-air hand gesture (e.g a peace sign with the two fingers moving one after another), touch-based gesture (e.g. on touch screen), and ...
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1answer
26 views

How can I transmit signals from pre-amplifiers to a laptop nearby using bluetooth?

I am trying to collect signals from preamplifiers (Aquarian Audio preamps, PA-4) and have them sent to a laptop nearby wirelessly, I have not found a dedicated device for this process, and the ...
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1answer
46 views

How to find the smallest change in voltage

You are comparing different A/D converters that will have 3.2 V and -3.2 V as their positive and negative reference voltages, respectively. Out of the following, converter _ can resolve the smallest ...
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1answer
18 views

What is the mechanism of transition in applications of finite state automata?

Just began studying automata. I've already seen several examples of the applications of finite automata: pattern matching, automatic doors, etc. And so far, I understand the logical connection between ...
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25 views

detection and verification

we are building a smart cat door that will unlock automatically when ONLY our cat is close to it (within a range of 3 ft). we tried using RFID, however it has a limited range, which was less than 2 ...
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0answers
14 views

Multi-resolution computer monitor

I have images and videos from several years ago, which looked good on old 800x600 pixel monitors, but don't look so great now. You either have to squint to see them or enlarge them but they end up ...
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0answers
23 views

Multiple sensor data to WiFi visualized on React Native app: Guidance [closed]

Objective: I want to connect multiple sensors to an item of equipment and visualize the data real-time on an iPad. Mock of Desired Output: Question: I need advice on the best methods to use to ...
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0answers
22 views

Confused about information on a state transition table

I'm working with a State Transition table with a variable I can't identify. Here's the table: I'm pretty sure "a" is the present state. "b" is the next state and Sx and Sx+ are the inputs. ...
1
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1answer
48 views

How to introduce the CONSTITUTIVE equation into structure mechanics [closed]

Suppose I have stress and strain relationship and it can be simplified to the equation $\sigma=Function(\epsilon)$. This is the CONSTITUTIVE equation of the material I want to do research. Assume ...
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3answers
75 views

Memory and Transistors

I'm asking this question as an early computer science student who is beginning to get way more interested in really low level stuff/computer/electrical engineering. I am very unfamiliar with hardware, ...
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1answer
63 views

Relation between residual stress and von mises stress calculated by FEA in comercial software

Suppose we do nonlinear structure mechanics computation. In each time step, we can get the results and can get Von Mises Stress at each node of the mesh. Can we say this number also means its ...
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2answers
72 views

How can I vaporize metals?

What are some common ways that I can vaporize Metals into a vacuum chamber? How can I keep these Metals in a gaseous state?
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1answer
99 views

How does punched card computer circuit design work?

I am trying to understand the underlying process of computer circuits from the beginning. I am reading about punch cards. I have come across several youtube videos and articles which are useful. ...
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1answer
42 views

How can I convert (AF36) hexadecimal to 2421 BCD? [closed]

How to represent numbers 10 to 15 in 2421 bcd? The original question is this:
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0answers
67 views

What is the proper way to handle string-to-float decimal truncation in IEEE 754? [closed]

This is not a StackOverflow question because the software engineers do not have appropriate math skills to answer an IEEE 754 question and thus must be answered by an IEEE tutor. I had to implement ...
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1answer
43 views

How did scientists develop the stencils that made even more precise processors than they had previously?

The history of computers seems somewhat pervasive since there are so many steps in modern manufacturing and so many changes in trends with transistors over many years. Grasping how we got to our ...
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1answer
35 views

Computer “Ports”, port scans and daemons

If I do a port scan from the internet, do I hit a bundle of wires that are physical ports into the motherboard (like a PCE port)? Or do I actually go into the operating system and interact with the ...
3
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2answers
474 views

Use two passive CPU coolers on one single CPU?

I aim on building a silent, completely passively cooled PC, with no moving parts at all (I am aware that it is cheaper to go for an inaudible computer instead, using low speed fans. This is not the ...
2
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1answer
125 views

MSP430 - Semaphore - C language

I'm dealing a C code here which is run on MSP430 LaunchPad. What I need to do here is modifying the program, so that at the push of the button, the micro cycles through 4 different modes: LED1 ...
2
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1answer
74 views

Why laptop keyboard has so many bus lines?

I changed one laptop keyboard on the new one and while changing it I noticed that it has 30 line bus. But from my VLSI practice, I know that keyboard can use only 1 data line and 1 clock line (PS/2) ...
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1answer
48 views

Similarities between OBD-II and VGA

I'm working on a project to make a Heads Up Display in my car. I need a way to present my project in front of my class, for I obviously cannot bring my car into the presenting room. My professor ...
2
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0answers
70 views

Connect a GPU to a mobile FPGA using

Please indicate if this question would be better asked on other fora, I'm not an engineer but computer scientist, and have very little experience with FPGA's / ASICs. As far as I understand from ...
5
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1answer
362 views

Byte organized and Word organized memory using memory modules

I'm currently learning about how a CPU works on the hardware level and something that keeps coming up is memory organization. From what I've learned (and please, do correct me on anything that is not ...
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2answers
77 views

Computer engineers — do computers use varying amounts of power? [closed]

My friends and I are trying to hypothesize how computers use energy. Please settle the debate. Do computers, or any other electrical device of the sort, e.g. 3d printers, use different levels of power ...
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0answers
27 views

MIPS Assembly stalls and forwarding when a register's value isn't modified in previous step

I'm going over pipelining and stalls and forwards with MIPS architecture, and there's a couple things I'm uncertain about. If two adjacent instructions, such as the first two of each set bellow, both ...
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1answer
30 views

Can you perceive similar kind of “humanizing” of technology in other fields of engineering than computer science?

So I've noticed that computer science has actually been developed so that it has become more human and less technological in the sense that development has raised the abstraction level up to a "more ...
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1answer
44 views

DLX assembly synthax

I see some example of DLX assembly instructions such as: LW Ri, 0 (Rz) but I can't find out why Rz has brackets around it.
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1answer
107 views

I Say To myself:“I Am An Engineer!”…How Do I Arrive At That Point? [closed]

"Ponder the path of your feet, and let all your ways be established." Proverbs 4:26 Over the last two years I have had a strong will to become an inventor within the field of computer-technology/...
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1answer
86 views

How do I hook these components together to get my desired functionality?

I have a big button http://store.2xlnetworks.com/thebigbutton/ and a display counter Microframe Model 265 https://www.microframecorp.com/d0265-6-digit-rugged-computer-controlled-display . I want the ...
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1answer
19 views

Deep out-of-order buffers

I was reading about the new Intel Xeon Phi processor on Intel's site https://software.intel.com/xeon-phi/x200-processor/remote-access and ones of its features is: Highly-parallel performance: ...
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1answer
279 views

Does increasing the number of pipeline stages increase the throughput of the pipeline?

I am facing problem with this question. In my book it is written that throughput increases with the increase in the number of stages. But I think this is wrong. I think throughput decreases. So can ...
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1answer
43 views

Why is it easier to run an STA on a CPLD than an FPGA?

I am aware that it is easier to run a static timing analysis on a CPLD than a FPGA, but why is this? Any information would be greatly appreciated.
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2answers
138 views

Latches - Question regarding states

In an assignment we had to build a Clock D-Latch and give the boolean function and the truth table for the states $Q_1$/$Q_1^*$ and the following states $Q_2$/$Q_2^*$. The latch looks like this: I'...
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1answer
141 views

Difference Latches and Flip-Flops [closed]

I am trying to understand the difference between Latches and Flip-Flops, as an example: RS-Latch and RS-Flip-Flop. In my lecture script the only difference is that latches are level triggered and Flip-...
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1answer
890 views

Is it possible to send ESC/POS commands to EPSON TM-T88IV Printer through Windows command line?

I am interested in learning more about ESC/POS commands. I have an EPSON TM-T88IV printer connected to my PC via parallel cable at port LPT1. Connected to this printer is an APG Cash Drawer. The PC is ...
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2answers
91 views

Computer engineering: Physical time clock timing [closed]

I would like to write software that can reliably get the "relative physical time", with the highest resolution, and lowest overhead as possible. By "relative physical time", I mean, for example, the ...
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1answer
64 views

What can I use to calculate distance? [closed]

Please excuse my ignorance in advance, (I'm in cs not EE), I am trying to figure out how can I get the distance from a car to a wall, what form of technology could I use IR sensors, ultrasound, etc.(...
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1answer
2k views

BTech or BSc engineering [duplicate]

My question has two parts. What is BSc engineering and Btech engineering ? Which has the highest validity in electronic and computer fields? PS : Specially in North American region.
5
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1answer
136 views

Explanation of network interdiction in layman terms

I am trying to understand network interdiction. I have read these papers, but it is still hard to get a clear understanding of what it exactly means: Blind Network Interdiction Strategies - A ...
5
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2answers
124 views

What is the significance of a processors bit capacity?

I'm learning about how processors send an address to ram through the address bus, and receive and send data from ram through the data bus. In the videos I have watched, the processor was an 8 bit ...
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0answers
460 views

What optics and display are used in Microsoft HoloLens?

How does Microsoft project an image so close to the eye yet understandable by the brain? How is the display transparent? This link has good information but is speculative. https://www.reddit.com/r/...
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1answer
358 views

How to represent floating point numbers using logic gates?

Using the formula given at the start of the question, I had to convert the numbers in part (a) to floating point notation. My answers for part (a) were: (i) 1111.2^11 + 111 (ii) 1111.2^11 + 000 (iii) ...
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1answer
2k views

How to create a logic circuit that multiplies two 4 bit numbers, using only 16 2-input AND gates and 3 4-bit adders?

"Sketch a combinational circuit which takes as input, two 4-bit binary numbers, A3A2A1A0 and B3B2B1B0, and which outputs the 8-bit product P7P6P5P4P3P2P1P0. Assume that you have available sixteen 2-...
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0answers
125 views

Using magnetic field readings for linear gesture recognition

I am thinking about using a permanent magnet as an input device for my smartphone. I have been reading some papers about it, but I really want to understand how things work. Using the integrated ...
10
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1answer
5k views

How do Thumb instructions compare to ARM instructions for performance?

A colleague mentioned that Thumb instructions were significantly slower than ARM instructions (this was for an AT91SAM7S32 processor). Is this true? What are the performance benefits of one ...
4
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1answer
788 views

How do products like the overheating Snapdragon CPU make it through quality control?

Almost all of the new Snapdragon CPU series (610, 810) have an overheating problem. This overheating problem may occur in the first few hours of using mobile phones that are equipped with the CPU, as ...
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3answers
2k views

Why is it more reliable to use the land/pit transition in a CD-ROM?

I was reading about how CD-ROMs work and I came to this: Although it might seem simplest to use a pit to record a 0 and a land to record a 1, it is more reliable to use a pit/land or land/pit ...