Engineering Stack Exchange
Engineering Stack Exchange

Questions tagged [computer]

19 questions
17
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3 answers

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 transition for a 1 and its absence as a 0,so this…
Kate
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7
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3 answers

What engineering advances paved the way for "modern" computers?

By "modern computers," I mean electronic programmable computers such as those that were developed about the middle of the 20th century. My understanding is that early computers such as Charles Babbage's "calculating machines" worked mainly on…
Tom Au
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4
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1 answer

Computer engineering vs Computer Science?

Sorry if this is in the wrong place; I haven´t posted in SE Engineering before, and the site said that SEE is also for students. I´m a High School senior and I´m debating between Computer Engineering and Computer Science. Can someone give me…
JKlemm
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4
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2 answers

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 point.). I came up with the idea to install not…
Benjoyo
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3
votes
1 answer

Where can I find technical drawings for computer parts?

I want to 3d print a custom computer case, I have the skillset to do so, however, I do not know where to find the technical drawings required. I need drawings for a 280mm Radiator, an ITX Motherboard, and various other parts.
ManquX
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2
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1 answer

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) or 2 data lines on (USB). The question is why it…
Kaspar Siricenko
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1
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1 answer

Is using your mouth and lungs to blow away dust inside your computer somehow bad for the computer?

Bottles of compressed air are very expensive where I live. While it would be nice and ideal to have and do a "proper" cleaning, I've always used my mouth and lungs to blow air onto the dust so that it twirls around and gets all over the place, just…
D. Madrueno
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1
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1 answer

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 running Windows 7 Professional. I would like to…
user2544028
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1
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1 answer

Have there been successful attempts at using a computer's heat to warm something up?

Computers get hot. So usually we try to make them less hot. But what if instead of trying to cool down a computer we used that heat for something else? Not necessarily any thing big like a whole room; maybe just something like a pet's cage. Is…
JesseTG
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0
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1 answer

PC Power Supply - Purple Wire signal imitation

Can I imitate purple (5VSB) wire by using 5V (30W) adapter joining ground of PSU and ground of adapter and using +5V wire instead of the purple? Both PSUs (new and old) are from same manufacturer but only difference in power and this purple wire.…
AlienScientist
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1 answer

How the LED light of a USB card reader works?

I need to know how the LED light of a USB card reader that indicates the data transfer works? Is it possible to create such a light using transistors and putting that circuit parallelly with a data cable connected to a USB storage drive? In this…
user10897549
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Is it possible to enable RDP via poking a system drive directly? Corrupted graphics driver

I have a Laptop that briefly shows artefacts on the screen then goes blank before the logon screen. Its a HP 14-cm0000 laptop and I think the graphics driver is corrupted. Judging by the disk activity I believe the system is functional under the…
Jason Ryan
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newly bought external usb hub not working?

i have a newly purchased usb hub powered by an external cable. i plugged in the cable from the hub and then plugged the hub into the laptop, after that switch on the switch to allow electricvity to come through. then i plugged in an external USB…
JTR777
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0
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2 answers

How to visualize angle of projection in Oblique Parallel Projection?

We know that in Oblique Parallel Projection Point $(x,y,z)$ is projected to position $(x_p,y_p)$ on the view plane.Projector (oblique) from $(x,y,z)$ to $(x_p,y_p)$ makes an angle $\alpha$ with the line (L) on the projection plane that joins…
S. M.
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Has there been any deliberate implementation of combinational logic soft error correction in any consumer-level product, like a CPU/microcontroller?

It is well known that many error detection, mitigation, and correction methods, such as parity or ECC, have been available in large memory banks, like for RAM, for decades now, and even in CPU caches and sometimes parts of state machines. These are…
user29823
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