The picture above is from the book .
The first device is disk, the second and fifth are monitor and keyborad, the fourth is tape,but what is the third ? It is too old for me ,can anyone help me ?
It is a printer a peripheral device which needs driver.
Looks like a printer, more specifically, try searching for images of an "impact printer". They looked quite similar. Also, present laser printers designed for use in office environments also look like this, especially if they have scanners/etc also included in the same box.
Related
I followed a tutorial and did this simple block of code that scans for BLE devices:This is what I had
However, I'm wondering if there is a way to hide the MAC addresses of scanned devices. I would just like the name so that the list looks cleaner. Thank you in advance.
I only looked up a solution but couldn't find much, other than redesigning so that you input a name rather than scan for all devices nearby. That isn't what I'm looking to do.
This question might be trivial, unfortunately I haven't found the answer I was looking for.
I used dpct migration tool to port some cuda code to Intel DPC++ and then I further optimized everything I needed and eventually got rid of everything related to dpct expect the super handy
dpct::get_current_device();
which basically solves all the previous pain I had to put compile options to select the appropriate device and control them with Makefiles and so on.
Is there any way to do this without using dpct ?
I had a look at how dpct does this (here) but it looks pretty non-straightforward and it relies on other internal functions.
Is there any way to avoid this ?
I'm not totally clear from your question whether you want to 1) grab a handle to your device or 2) select a device on which to run stuff, so I'll try to answer both. Note that dpct::get_current_device() isn't actually selecting a device, it's just returning the device which you have already selected earlier in your program.
Typically when using SYCL we start with a sycl::queue, which we use to submit kernels, memory copy operations etc. From a sycl::queue you can access your device with:
sycl::device d = q.get_device();
But it seems like you may instead be asking for the simplest way to select a device. In this case, the simplest approach is to construct your queue with one of SYCL's provided device selectors:
sycl::queue q{sycl::gpu_selector()};
sycl::queue q{sycl::cpu_selector()};
sycl::queue q{sycl::default_selector()};
Note that the last option (sycl::default_selector()) is probably what dpct is currently doing for you.
I've put a lot of time and research into finding a reliable solution for my problem. I am attempting to modify values in packets sent to and from my Iphone, of course I can't directly view and tamper with packets directly from my phone. So I've connected my phone via proxy to my computer (windows) so I could attempt to modify the packets their. Now I can successfully view and save packets but I can't seem to find a way to modify them on the fly.
I've followed many suggestions posted here such as scapy and other tools like it yet I can't seem to get them to work on windows at all, also i'm not sure these tools are even right for my end goal. I am familiar with modifying live packets on programs like WPE Pro, but I don't think that's the right tool for the job.
My question is this, is this the right path for accomplishing my goal? If so do you have a suggestion for tools that may help? If not, where should I begin looking for different solution?
Edit: Specifically I am aiming to alter hex code in the packet. In the http 1.1 packets I want to alter, I know the exact position of a certain group of hex values that translate to a plain text number. For example, say on line 80 is some hex equaling "value:12345". I want to alter that "12345" part to different numbers, keeping everything else the same so my phone will process that different value instead.
I wrote a tool which was originally thought for analyzing hard disc images. Now I'm trying to use this tool for live analyzis of computer systems, means my tool tries to access the physical drive.
I implemented my tool in QT accessing the images using the QFile class. Instead of images I hand over the physical drive, under windows it is \.\PHYSICALDRIVE0.
I was wondering first I didnt get any errors, I can open the device, I can seek, get the position, almost everything. The only thing I have problems with is retrieving the drive size with size().
Some code example:
QFile file( "\\.\PHYSICALDRIVE0" );
file.open( QIODevice::ReadOnly );
file.size(); //returns 0
I'm not too deep into QT, probably this is some easy thing. I would like to thank everybody who has an idea what is the reason.
thanks in advance!
QFileInfo may be able to help you out. It sounds like opening a read only file at that part of windows partition is allowed maybe even if it doesn't exist. There might be a chance that the call of GetLastError() may give more information why a file size of zero was returned.
With QFileInfo, you can check to make sure it exists before it opens.
You may end up needing some platform specific calls to be able to work with Physical Drives:
Volume to physical drive
It looks like there may be some example code of looking at partitions with PartMod on SourceForge.
As a side note of querying sizes of file folders, I thought it had to be cached somewhere by the operating system, or had to be calculated at the time of the query in many cases. I know it seems like that happens when looking at folder properties in Windows or Get Info on OSX.
Also, looking at the Volume to physical drive answers, there is a field there for the extent length. I think this is what you are looking for.
Hope that helps.
Can someone please explain to me the basic flow of how this is done.
So currently I a USB pic programmer and also a multi pic adapter. I understand that I can use this to write my program to the PIC. But Im not sure what happens before that, like how do I actually test it with LED or some input sensor etc that gives out analog data?
This is what I have now: http://www.piccircuit.com/shop/pic-programmer/26-ica01-usb-pic-programmer-set.html
So I need to connect this to to a breadboard? And if so how? Im completely lost!! This is the first time that I attempt to do this. What I have done is use my Synapse RF Engine EK2100 to build what I want.
Now what...?
I'm not entirely sure what you're trying to accomplish but what you purchased is a programmer for PIC microcontrollers. After you have written some code whether in assembly or C and compiled it to a hex file, this device will put that code onto a PIC microcontroller that you buy separately. Have you purchased a PIC device to program or do you just have the programmer and the EK2100 kit? If you provide some more detail we can point you in the right direction.
Write a basic 'flash LED' program and then wire-up the PIC to see if it works.
Hot tip - use the internal oscillator to minimise the external component count (makes things simpler). Browse around a PIC savvy site like http://digital-diy.com/ to get lots of interesting ideas and code samples.
The community there mostly use PIC Basic type languages (such as Swordfish) that will land you code that looks something like this (header/setup removed for ease of explanation):
While True
High(LED)
DelaymS(500)
Low(LED)
DelaymS(500)
Wend