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please suggest me which site or book should i refer to understand mobile internal hardware, i m s/w engineer and wants to do project on mobile security system .
ritparn
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Hi everybody!
I want to buy a laptop within semptember. This is that i need:
1GB ram
strong cpu
wireless and bluetooh integrated
graphic card not important
large hd (120,160GB)
Anyone know any laptop with these features?
And, at first, how much it cost???
Thank you
enrico
VentoEngine corp.
Program your life ^^
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ventomito wrote: Anyone know any laptop with these features?
And, at first, how much it cost???
Most laptops will support everything you mentioned except blue-tooth, that limits the list somewhat....
However, what do you consider a "strong CPU?"
Do you want Dual Core? (AMD dual core laptops are available from one or two sources, though not sure of bluetooth integration -- the dual core Centrino architecture was just announced recently and new laptops are expected soon, google for "Centrino Duo")
or do you want a strong single core? do you prefer a strong instruction cache with an intelligent pre-fetch (centrino) or just a brute force faster CPU? (efficient use of speed or just speed)
Certainly if the graphics is not important, the Centrino makes a very good laptop (and even some of the Centrinos drop the Intel graphics and add 3rd party graphics). And the top of the line Pentium M processor is still decent at 2.13ghz, the intelligent pre-fetch makes it seem much faster. The new Duo has some interesting characteristics that make it intriguing beyond any other dual-core chip, I don't know yet if that is good or bad.
_________________________
Asu no koto o ieba, tenjo de nezumi ga warau.
Talk about things of tomorrow and the mice in the ceiling laugh. (Japanese Proverb)
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I was watching for the new sony vaio dual core.
I need a good cpu to use visual studio as fast as possible...
I dont wanna become old waiting the compilation 
VentoEngine corp.
Program your life ^^
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ventomito wrote: I need a good cpu to use visual studio as fast as possible...
I dont wanna become old waiting the compilation
Actually get one of the 100gig 7200rpm drives. Compilation is multiple issues, disk to memory, memory to CPU and CPU crunch, and back to disk. I don't have a copy of 2005, but I don't believe any of the previous versions supported a multi-core compile, so the physical CPU will only be one-core for compilation. As others have mentioned, you will still see a small improvement because the other threads for OS activities and overhead might be taking 2 to 5% of the CPU and those move to the 2nd core to let the compile take the whole thing.
If you go dual core, don't downgrade your CPU speed rating thinking two cores will make up for it.
This is my favorite thing to do if someone is looking to improve or not loose speed on compile.
run perfmon in windows
make sure the following counters are active:
Pages/sec (memory)
% Processor Time (Processor)
Disk Bytes/sec (Logical drive -- on the drive you are compiling under.
Make sure the colors are set so you can see the difference, leave it running in a corner of your screen and do a build-all.
You will then see the lines go mad. When the processor line spikes high you are using your CPU hard, if it peeks at 100% you are bound by the speed at that point. If memory spikes, you know you are using your memory hard, that height is adaptive, so you can never tell if you are memory bound, but you can infer that you are if the memory spikes at the same time the processor drops. And when the disk readings spike you know you are using your hard-drives hard.
The combination of those three activities is what makes for your choice in machine. If the drive rarely spikes, then you can down grade the disk speed with minimal affect, if memory rarely spikes, then you can down grade the memory with minimal affect.
But that test will show you just how much of your Memory/CPU/Disk combo you are abusing. I abuse them every day.
_________________________
Asu no koto o ieba, tenjo de nezumi ga warau.
Talk about things of tomorrow and the mice in the ceiling laugh. (Japanese Proverb)
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thank you for the suggestions^^
VentoEngine corp.
Program your life ^^
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After a year of hardcore development in Visual Studio 2003 (C++), I can recommend something like: AMD64 (I'm runnning a 3400+), as much RAM as you can afford/fit in(1GB for me), 7200 rpm hard-drive...
I've found that to be around 20-30% faster for builds than a roughly equivalent 3GHz Pentium 4 setup (1GB RAM, 7200 rpm drive) we also have.
Also, a high reolution screen is nice (I've got 1400x1050)
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Hi,
I need to write a program that controls a camera get the data
But to do that we need to call some system dll's. (This is because the camera connects to the computer through the USB port .
any one can help
AMR-CIS
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you'll get a reply if you ask this in VB/VB.net forum.
VuNic
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This sample shows how to be notified of a device being plugged in or removed from the system. It uses the WMI's Win32_DeviceChangeEvent class. The class is only available in Windows XP or 2003. Add a reference to system.management for this example.
--------------------------------------------------------------------------------
Dim WithEvents w As ManagementEventWatcher
Dim q As WqlEventQuery
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
q = New WqlEventQuery("Select * from Win32_DeviceChangeEvent")
w = New ManagementEventWatcher(q)
w.Start()
End Sub
Private Sub w_EventArrived(ByVal sender As Object, ByVal e As System.Management.EventArrivedEventArgs) Handles w.EventArrived
MessageBox.Show("Device Event", e.Context.ToString)
End Sub
Private Sub Form1_Closing(ByVal sender As Object, ByVal e As System.ComponentModel.CancelEventArgs) Handles MyBase.Closing
w.Stop()
End Sub
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Hi! I wonder if someone can help me with writing a simple application that can work with a fingerprint scanner and saves the result image in tiff format? I tried to use methods like for usual scanners, but with no luck (((
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I dont think the scanners submit pictures to your computer. AFAIK they only transmit a "unique ID" generated from your fingerprints unique features.
Cheers,
Sebastian
--
Contra vim mortem non est medicamen in hortem.
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Well, the most secure scanners actually don't submit any pictures, but the non-secure ones (like MS Digital Persona) do (and they even show theese pictures on the screen).
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I maxed out my memory of my desktop and now any video I play has all sorts of sound distortion or static on it.
I've updated the bios and every driver I can think of. I'm guessing that it has something to do with allocated PCI memory being in conflict with real memory, but my BIOS doesn't let me change allocated PCI memory, only AGP memory.
I've moved the audidy 2 card to different slots and changed bios settings to Plug and play OS and still nothing has worked.
Any advice would be great!
thanks
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this also happened with me when i added some memory to my pc..the built-in sound card wouldn't work anymore even if i removed the new memory!!!!so i put in an old sound card till i find a solution but unfortunately i couldn't...
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The problem is that - on a 32 Bit OS - your memory adresses and PCI addresses conflict (as you already recognized). You should see if there is a "Memory Hole"-Option in your BIOS and toggle it. Additionally, there might be a "Remap memory" option, which you could also activate. Otherwise, the only thing you can do is downgrading to 2 GB.
Cheers,
Sebastian
--
Contra vim mortem non est medicamen in hortem.
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thanks everyone. 
I upgraded to the lastest bios and there is no such option. 
How can intel say that their mobo supports 4 gb without telling me that it doesn't work correctly? I might be able to understand the oversight on a server board, but on a desktop mobo like this one?
They mention what SHOULD happen it in their documentation, but don't tell me how to configure it or address it or anything. Maybe this is all automagical and there is a probelm with the sound card not telling the BIOS that it needs some more memory or something. who knows.
Thanks again everyone.
"The D875PBZ utilizes 4GB of addressable system memory. Typically the address space that is allocated for PCI add-in cards, AGP aperture, BIOS (firmware hub), and chipset overhead resides above the top of DRAM (total system memory). On a system that has 4GB of system memory installed, it is not possible to use all of the installed memory due to system address space being allocated for other system critical functions. These functions include the following:
- Memory mapped I/O that is dynamically allocated for PCI and AGP cards
- AGP aperture
- APIC and chipset overhead (approx 18MB)
- BIOS/firmware hub (approc 2MB)
The amount of installed memory that can be used will vary based on add-in cards and BIOS settings. For example, if the PCI cards are requesting 200MB of system memory and the AGP aperture is set to 256 MB in the BIOS setup program, there will be approximately 3.54 GB of memory that can be accessed . . . All installed memory can be used when there is no overlap of system addresses. For example, all of the system address space can be utilized on a system that has 2GB of installed system memory, AGP aperture set for 256 MB, and the PCI cards are addressing 200MB of system address space."
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I've been searching for a way to do this and so far all efforts have failed :P
When i set a global mouse hook, no event is detected when i press a mouse tilt...just wondering if anyone has any suggestions.
I dont even think its possible to set a key to its action in microsoft's intellipoint software...thats the reason i'm doing this...i want to bind those keys.
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check the new WM_APPCOMMAND messages
http://www.microsoft.com/whdc/device/input/5b_wheel.mspx
"However, buttons 4 and 5 are not mapped to any specific User32 or Shell functionality; instead these buttons can be mapped by software applications to application-specific functionality. More specifically, these buttons are mapped to new WM_APPCOMMAND messages that are in Windows to notify software applications of application command events."
Somthing like this:
Public defWindowProc As Long
Public Const GWL_WNDPROC As Long = (-4)
Const WM_APPCOMMAND As Long = &H319
Const XBUTTON1 = &H80010000
Const XBUTTON2 = &H80020000
Public Declare Function GetWindowLong Lib "user32" _
Alias "GetWindowLongA" _
(ByVal hwnd As Long, _
ByVal nIndex As Long) As Long
Public Declare Function SetWindowLong Lib "user32" _
Alias "SetWindowLongA" _
(ByVal hwnd As Long, _
ByVal nIndex As Long, _
ByVal dwNewLong As Long) As Long
Private Declare Function CallWindowProc Lib "user32" _
Alias "CallWindowProcA" _
(ByVal lpPrevWndFunc As Long, _
ByVal hwnd As Long, _
ByVal Msg As Long, _
ByVal wParam As Long, _
ByVal lParam As Long) As Long
Public Function WindowProc(ByVal hwnd As Long, ByVal Msg As Long, ByVal wParam As Long, ByVal lParam As Long) As Long
'Subclass form to trap messages
On Error Resume Next
Dim retVal As Long
'First let the original Window Procedure process the message.
'CallWindowProc returns the part of the form the mouse is on.
retVal = CallWindowProc(defWindowProc, hwnd, Msg, wParam, lParam)
'What message received?
If Msg = WM_APPCOMMAND Then
If lParam = XBUTTON1 Then
Form1.Print "XButton 1 clicked"
ElseIf lParam = XBUTTON2 Then
Form1.Print "XButton 2 clicked"
End If
End If
WindowProc = retVal
End Function
Private Sub Form_Load()
'Begin the subclassing of frmMain by passing the
'address of our new Window Procedure. SetWindowLong
'returns the address of the original Window Procedure,
'so we store it in a global variable to restore
'when stopping the subclassing (typically, in the
'Unload event).
defWindowProc = SetWindowLong(Form1.hwnd, GWL_WNDPROC, AddressOf WindowProc)
End Sub
Private Sub Form_Unload(Cancel As Integer)
'restore the original Window Procedure
'before unloading the form, or GPF will occur
If defWindowProc Then
Call SetWindowLong(Form1.hwnd, GWL_WNDPROC, defWindowProc)
defWindowProc = 0
End If
End Sub
Hope this helps.
progload
-- modified at 1:12 Tuesday 24th January, 2006
Just Another Note: If you still don't see the messages, you'll need to do your own filter driver to do it.
progload
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Hi,
I need to write a program that controls a camera we use in the lab and get the data. But to do that we need to call some system dll's. (This is because the camera connects to the computer through the USB port and we pretty much have to write the driver). We are actually using Matlab for data processing, but I couldn't call some functions because they need pointers, and Matlab apparently doesn't support pointers. If anyone knows anything about making pointers in Matlab, that would be greatly useful too.
thanks
A.S.
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Try googling for "dual photography" and "SIGGraph" and contact those guys. They use a digital camera for image processing with matlab, and I believe they released the source. If you cannot use the source (if its released) you could at least ask them for a few hints.
OT: That dual photography thing was awesome. With one camera and a digital projector they could generate pictures of the photographed images from the projectors point of view.
They had the camera pointed at the back of a card (ace of spades I believe) and a projector illuminating the front (both at an angle). By evaluating the pictures of the camera, they could create the image as it would have been if the positions of camera an projector were switched.
Cheers,
Sebastian
--
Contra vim mortem non est medicamen in hortem.
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Hi can you help by using vb.net
to get Access USB through vb.net
AMR-CIS
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Hi,
I'm looking to get a laptop to do some MFC, C++ Windows programming. Looking to get a 14" widescreen. Does anyone have any good suggestions? Is AMD64 ok, and can I port it to a Intel-based system later?
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skyll wrote: Is AMD64 ok, and can I port it to a Intel-based system later?
AMD is identicle operation as Intel. Even down the SSE/SSE2/SSE3 instruction sets. There are different optimizations for each if you want to improve performance, otherwise everything still works. Work buys only Intel, from XEON to Centrino, I buy AMD at home, I even have the new X2 chip, all my software runs just as well on my home system as work, especially now that I have the X2 chip since my software has always been multi-threaded, since 1993.
_________________________
Asu no koto o ieba, tenjo de nezumi ga warau.
Talk about things of tomorrow and the mice in the ceiling laugh. (Japanese Proverb)
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would you get a AMD64 or a intel dual core that's 32-bit. and what's your favorite laptop to code on.
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