Amateur need help about mac pro buttons

I have the macbook pro late 2011 run with mac os X 10.7.5 . now i have a problem with the keyboard button . the problem is the volume button doesnt work but it work when i connect the headphone in or connect with the hdmi cable for using with TV . Anyone can help please ????

Is the problem that the button does not work or that the speakers internal in the MBP are not working?
Ciao.

Similar Messages

Need help with Mac Pro purchasing decision

I've read preliminary reviews on the new Mac Pro, and I'm ready to upgrade my current Mac Pro (which is Dual 2.4 Ghz Quad-core with 32 GB RAM). But I'm going through some major turmoil in the decision. My current Mac Pro, aged as it may be, has been good to me, and when it needed upgrading, it was so easy to do. I installed an additional two internal hard disks, giving the Mac Pro 3 TBs of internal storage. RAM upgrade was a breeze, and when the graphics card went out, I was able to buy and install a replacement without a hiccup.
I love the low profile of the new Mac Pro, albeit I'll still be putting it on the floor - I don't like having my desktop computer in my desk work area. And it looks like upgrading the RAM in the new Mac Pro is pretty simple (although horribly expensive). I would require a CD/DVD drive, so that becomes a piece of "stuff" I have to clutter my work are with. However, most importantly, the internal storage issue, FOR ME, is huge. Without the ability to add internal drives, getting the 1TB flash storage is a must, but sooooooo expensive. AND.. I still need additional storage (more than half of my current 3 TBs is in use).
Moreover, the whole lack of upgradability has me concerned that the new Mac Pro may disappear like the G4 Cube. I haven't seen any rave reviews of the new Mac Pro overall.
But I need to upgrade.
I have configured a new Mac Pro on the Apple Store about 100 times now, but never making the purchase for all of the above reasons, as well as the $5K price tag that it keeps ending up at. I even started looking at refurbished Mac Pros (newer than mine, but the same old huge silver case). The advantage is that it's upgradeable, and I won't end up with an optical drive or external hard drives cluttering my desk space.
The truth is, every time I go to buy, either a new Mac Pro, or a refurbished one, I hit a wall. I'm walking the fence, wondering if I should walk it until a newer Mac Pro shows up with more expandability options (although it seems unlikely since Apple's direction seems to be form over function).
The new Mac Pro has been out for awhile, so I am looking for feedback from people who are kind of in my shoes, but already bit the bullet. I don't want to encourage replies of regret, but I also would prefer the truth over grandiose reviews simply to justify making the leap (and dropping some huge bills). It happens... "I just spent 5 grande, I better **** well love it, and I'll make sure everyone else thinks I do!" ;-)
Please share your experiences. How have you gotten around the lack of upgradeability on the internal storage? I have had bad experiences with external drives in the past. Firewire drives were fast and furious, but the were not as reliable as internal drives. USB drives lag, and that dreaded spin up time every time the Mac OS does something that wakes up all the drives, even if the external drives weren't actually being accessed (never had that problem with Firewire drives, maybe because they were always spun up?).
Anyway, I don't want my buyer's pain to turn into buyer's remorse, so I appreciate all the wisdom any of you would be willing to share.
Thanks,
Bill

I'll offer my comments although there are others much better qualified to answer than I am.
First, the reason I bought the machine that I got was that I found an "open box" deal at a local retailer and got a substantial discount from the normal list price. Otherwise, I might not have gone to the nMP quite as quickly as I did. Regarding ram and the ssd drive, both of these can be upgraded at some later date if I find that is needed. The ram I will probably bump asap, filling the one empty slot with likely an 8gb OWC module.
To run your VGA monitors, you will need 2 passive mini-display port to VGA adapters. You can buy these pretty much anywhere, the Apple ones are superb quality at a price but other options are out there. These will plug into 2 of the Thunderbolt ports on the nMP.
Regarding cpu's and gpu's it gets a bit confusing. Basically right now it depends on the software that you are going to run. It is not likely coincidence that FCPX 10.1 came out basically at the same time as the nMP, as it really highlights full use of the multicore cpu's plus the dual fast gpu's. FCPX really screams on the nMP.
Right now, it seems more video software is making optimum use of both the multicore cpu's and dual gpu's in the nMP. Other software, most notably photo software that should also benefit, is lagging behind. For instance (going only from memory) Adobe software is not very good at using multi-core cpu's nor does it use multiple gpu's either. You can find comparisons of running Photoshop filters on a 3.7ghz 4-core vs the (slower clock speed) 6 or 8 cores and the 4-core comes out close or even faster in some tests because Photoshop uses only a single core, which on the 4-core machine is faster.
However, this is a pretty specific instance and generally buying the fastest cpu and gpu that you can afford is a good plan. Especially so for the gpu's as right now, the video may end up being the only component that does not end up with some sort of upgrade option in the foreseeable future.
If I was going to order a system under the circumstances you have stated, the 6-core with the D500 gpu's sure looks like the sweet spot in the lineup, and probably money well spent. After I would probably upgrade the ssd next, since in order to upgrade it later you have to remove a perfectly good ssd since there is only one slot. Personally I am ok with the 256gb as my boot and system drive, since with Thunderbolt you have basically PCIe access to an external box that can have either Sata or PCIe expansion for whatever storage you can afford.
As I said earlier, right now I am going cheap and using Apples Thunderbolt to firewire cable, which is allowing me to run my existing Lacie firewire drives in a daisy chain just as I did on the old MP.
Upgrading the ram at purchase or later is your choice, there are certainly less expensive options but with only 4 slots you have to weigh the cost of discarding or trading in the original Apple ram when you decide to swap it out for bigger modules. Plus not all ram can be mixed and matched, you may have to remove all the existing ram in order to add just a single high capacity (16gb or larger) module.
Again, hope I have helped more than adding to your confusion.

Need help with mac pro OS

Good day.
I've recently "inherited" a Mac Pro. Trying to get it cleaned up and get newest OS.
I've only got as far as updating to Snow leopard (Mac OS X ver. 10.6.8) but can't seem to get anything past that installed. (I.e. lion or better)
Processor: 2 x 3 GHz Quad-Core Intel Xeon
Memory: 12 GB 667 MHz DDR2 FB-DIMM
Model Name: Mac Pro
Model Identifier: MacPro2,1
Processor Name: Quad-Core Intel Xeon
Processor Speed: 3 GHz
Number Of Processors: 2
Total Number Of Cores: 8
L2 Cache (per processor): 8 MB
Memory: 12 GB
Bus Speed: 1.33 GHz
Boot ROM Version: MP21.007F.B06
SMC Version (system): 1.15f3
Hardware UUID: 00000000-0000-1000-8000-0019E3F9B41E
Pretty amateur to novice on macs so if wrong info provided, my apologies.
Any input would be greatly appreciated.
Thank you!
Bill

The Mac Pro 2,1 and 1,1 officially only support up to Mac OS X 10.7.5.
Overview
If you need to purchase Mac OS X 10.7 Lion, you may order it from this page [at the Apple online store, US$20].
The most current version of OS X is OS X 10.9 Mavericks. To learn more, please click here.
What do you receive: An email with a content code for the Mac App Store.
Note: Redemption codes are usually delivered within 1 business day but may occasionally take longer.
http://store.apple.com/us/product/D6106Z/A/os-x-lion

Need advice about Mac Pro and Windows networking

I currently have 2 machines at work: One HP Windows PC (high configuration) and a PowerMac G5 2GHz dual. I'm basically close to purchasing a new Mac Pro to replace both machines but need some advice. I do the majority of design work on the Mac. However I need the Windows PC to also do some design work but mainly use it to connect into the windows network at work. Basically I need to be able to access the network drives (which are set up with Novell Netware, with IPX turned off), Novell GroupWise email system and connect to the internet through the LAN. Can I do this with a Mac Pro, with either Bootcamp or Parallels? Is there any sacrifice in terms of performance in using Bootcamp or Parallels? The end result I want is similar to what I am doing at the moment - at the moment I use a PC to network and the Mac to design, side by side with each other. What I want is to do this from one machine, not two. (I also need the PC side of things as I need to use some software that isn't available on the Mac, eg. bespoke databases that run on PC). Is it easy to network under Bootcamp/Parallels? What pitfalls are there that I need to be aware of?

When your running Windows via bootcamp, you are essentially Running windows on a PC architecture. You will have all the same capabilities that you have now.
When you use Parallels to run Windows, you are running Windows as a virtual machine running within the confines of the Mac OS. The advantage is that you can run multiple OS's at the same time, and easily share files and data between them. The disadvantage is that the OS running within Parallels has a slightly performance hit, meaning you are not running as fast as the bootcamp version, but the performance hit is very slight. The only place that Parallels is lacking at the moment is in support of 3D or accelerated graphics. That is Parallels currently cannot make use of a graphics card 3D capabilities or advance GPU options. Parallels has stated their intent is to provide better graphic card support in the near future.
With all this in mind, I don;t see any reason why you cannot use Parallels for your Windows networking needs, and the Mac for your design needs, all at the same time. You will need of course to ensure you have enough RAM to support both OS's if you intend to run them at the same time.
Tom N.

Need help with Mac Pro (2008) iCloud sync problem

I am using a Mac Pro (Early 2008) with multiple drives and partitions, some of which I use for various software testing. I wanted to have access to the same data on various partitions, so I tried to use iCloud to store some Pages files. I found that in the Mountain Lion Partition that I normally use, that the document data ( Pages, Numbers, etc) would not upload to the cloud... just showed as waiting. All other iCloud Data ( Calendar, Address Book , etc) did sync fine. If I accessed iCloud using a browser or looked on iClould using the iCloud Manage function in the iCloud system preferences, I could see all the files. I then found that I did have another Mountain LIon partition in which the data syncing all worked. Other testing showed that if I did a clone of the working partition using SuperDuper, the clone worked properly, but if I did a clean install of 10.8.4, the document data did not sync.If I did a clean install and used the migration assistant to migrate from the working partition, it still did not work. I later found that if I replaced the top level Library file in a non working partition with the one from the working partition, that I could make the non working partition sync properly. I have not been able to find a subset of the folder that would make things work, but have not tried every combination. At this point my only conclusion is that there must be a bug in the 10.8.4 installer. Apple has been working on this for a few weeks, but has not found anything and cannot duplicate... but they are testing with iMacs.
Is there anyone with a Mac Pro (2008) who can do a clean install of 10.8.4 on a partition and see if they can still access their iCloud data (Pages, Numbers, Etc). If so that would probably confirm the otherwise unexplanable problem.

I am using a Mac Pro (Early 2008) with multiple drives and partitions, some of which I use for various software testing. I wanted to have access to the same data on various partitions, so I tried to use iCloud to store some Pages files. I found that in the Mountain Lion Partition that I normally use, that the document data ( Pages, Numbers, etc) would not upload to the cloud... just showed as waiting. All other iCloud Data ( Calendar, Address Book , etc) did sync fine. If I accessed iCloud using a browser or looked on iClould using the iCloud Manage function in the iCloud system preferences, I could see all the files. I then found that I did have another Mountain LIon partition in which the data syncing all worked. Other testing showed that if I did a clone of the working partition using SuperDuper, the clone worked properly, but if I did a clean install of 10.8.4, the document data did not sync.If I did a clean install and used the migration assistant to migrate from the working partition, it still did not work. I later found that if I replaced the top level Library file in a non working partition with the one from the working partition, that I could make the non working partition sync properly. I have not been able to find a subset of the folder that would make things work, but have not tried every combination. At this point my only conclusion is that there must be a bug in the 10.8.4 installer. Apple has been working on this for a few weeks, but has not found anything and cannot duplicate... but they are testing with iMacs.
Is there anyone with a Mac Pro (2008) who can do a clean install of 10.8.4 on a partition and see if they can still access their iCloud data (Pages, Numbers, Etc). If so that would probably confirm the otherwise unexplanable problem.

About Mac Pro RAM and one "Nehalem" Processor 2.8 vs 3.2

Hi,
Unfortunately I don't have so much money to spend but I find Apple products very high quality and in same time very expensive, specially for my country (Russia), according to statistic, it’s less then 1% of people that using Mac Pro in here, my country really poor :/
I never use Mac before, but I think that time is come and I would like to buy one on my birthday soon (22 November). I really tired of my crazy PC with Vista, it’s always bugs lags, and so on, it’s poor machine. I can buy new PC with i7, nice performances or buy Mac, but I think, Mac will be more quality and stable.
I'm web designer and programmer and using my PC with Adobe programs, normally Photoshop, Illustrator, Dreamweaver, very rare with After Effect (1 day per month). Sometimes I’m playing games like Dragon Age or CS:Source, Starcraft2. But I got PS3, but unfortunately it’s connected to our main home TV, and I can’t play PS3 because all day this TV watching my family :/ lol
I’m not sure if there are any way to connect PS3 to TV and computer screen at the same time… but it’s another question.
Now about Mac I'm wondering of buying cheapest Mac Pro 2010:
# One 2.8GHz Quad-Core Intel Xeon “Nehalem”
# 3GB (3x1GB)
# 1TB 7200-rpm Serial ATA 3Gb/s hard drive
# ATI Radeon HD 5770 1GB
# One 18x SuperDrive
But at the same time, I wondering about how long time I will be able to use this Mac, and enjoy it before it will come too old. Because I just can’t spend and buy Mac every 2-3 years.
I’m looking forward to use it for 4-5 years I think or so. I know it’s very hard question and I’m not really sure if it’s right to discuss it, but I’m saying just what I think.
And maybe because of this, it’s better to order processor with 3.2Ghz, and a bit more RAM (8GB (4x2GB))? What you think?
And what will be the different between this 2 processors and more RAM? Because it will be +800 USD or so, and it’s very expensive for me (pay addition 800 Dollars), I just want to ask you if it will costs this money. Unfortunately I can’t spend more money on Mac to buy 6-core Westmare and more RAM But I think cheapest Mac, for my tasks already very powerful and awesome, what you think?
And if you’ll advice me, not to pay addition 400 USD for +0.4Ghz, and the different is very little, then what you think about addition Ram for stock MAC?

Thank you hatter.
I'm appreciate for your help and answer, and this amazing links! They are very helpful.
I find some interesting information. And most interesting is SSD thing. But unfortunately it's very expensive for me
I got 2 ways to go, and I really confused now. I take a look what you said, about making a PC with i7. And here is what I find on our Russian market - only 1 company which offers high quality custom PC's with up to 3 years guarantee.
What they can offer:
Price: $2060
(Basic Config: DEPO Ego Z71i)
OS:
Microsoft® Windows 7 Home Premium RUS 32-bit
or
Microsoft® Windows 7 Home Premium RUS 64-bit
MotherBoard:
*ASUS P6T, Intel®X58 chipset , DDR3, ATX*
CPU:
*Intel® Core™ i7 Processor 930 (4-Cores, 2.80GHz, 4.8 GT/s, 8Mb)*
Intel® Core™ i7 Processor 950 (4-Cores, 3.06GHz, 4.8 GT/s, 8Mb) +$365
Intel® Core™ i7 Processor Extreme Edition 980X (6-Cores, 3.33GHz, 6.4 GT/s, 12Mb) +$1150
RAM:
*3Gb DDR3-1600 Corsair Dominator, Triple Channel*
6Gb DDR3-1600 Corsair , Triple Channel +$40
12Gb DDR3-1600 Corsair , Triple Channel +$260
HDD1:
*1TB SATA hard drive (7200rpm)*
2 x 1TB SATA hard drive (7200rpm) +$80
4 x 1TB SATA hard drive (7200rpm) +$230
2 x 2TB SATA hard drive (7200rpm) +$355
4 x 2TB SATA hard drive (7200rpm) +$790
HDD2:
WD VelociRaptor 150GB, 10000rpm, 16Mb cache, SATA-II +$175
2.5" 64GB SSD SATA II +$205
WD VelociRaptor 300GB, 10000rpm, 16Mb cache, SATA-II +$285
2.5" 128GB SSD SATA II +$405
RAID:
RAID0 (required minimum 2 HDD) +$10
RAID1 (required minimum 2 HDD) +$10
Optical Drive 5.25":
*DVD±RW/CD-RW/DVD 16x4x/5xDL/16x4x/16x/48x/24x/48x*
BD-ROM&DVD RAM&DVD±R/RW, 5x/5x/12(R9 6)x/6x/12(R9 4)x/6x/12x/24x/24x/32x +$130
SuperMulti Blu-Ray ReWriter +$235
Card Reader 3.5":
*Card Reader/Writer 50 in 1 (CF/MD/SM/MS/SD/MMC)*
Video:
*ATI Radeon™ HD 5870 (1024МБ, PCI-E TV-out DVI+HDMI)*
1536MB NVIDIA GeForce 480GTX PCI-E DVI +$110
2x ATI Radeon™ HD 5850 (1024МБ, PCI-E TV-out DVI+HDMI) +$230
2x ATI Radeon™ HD 5870 (1024МБ, PCI-E TV-out DVI+HDMI) +$490
Sound:
*Realtek 7.1 (integrated)*
Creative Sound Blaster X-Fi™ Titanium Fatal1ty Champion Series +$400
Power:
*800W (12sm)*
1000W (14sm) +$50
1200W (14sm) +$55
WiFi:
*WLAN 802.11bg*
Mouse + KeyBoard: (lol)
Without mouse and keyboard -$75
Cordless Desktop® Wave Pro™ +$75
Maitance:
*1 Year*
2 Years +$10
3 Years +$20
Ok, that’s it.
DEPO - It’s our Russian company so I can’t give you link on English web page, but if you are interesting to view it, maybe with Google translate:
http://www.depo.ru/H/MDL658/1000004953/zconfigurator.aspx
And I’m not really sure, if they offer high quality components, and I can’t check it.
I just don’t want to repeat same experience like with my previous computer – I bought top computer for very high price with top components, but everything was bugging, it’s terrible, I’m working with this computer 3 years now (it’s cored 2 duo with radeon x1900 and vista :S video card - without supporting DX10-11, 2 Hdd 500Gb RAID 0, - maximum lags – I cant’ even make a diagnostics… crazy). And I’m so sad about this computer, and I don’t want to repeat same experience. That’s why I wonder about Mac Pro or any other quolity PC, but price is too high, or if I buy just normal Mac Pro:
• One 2.8GHz Quad-Core Intel Xeon “Nehalem”
• 3GB (3x1GB)
• 1TB 7200-rpm Serial ATA 3Gb/s hard drive
• ATI Radeon HD 5770 1GB
• One 18x SuperDrive
• Apple Magic Mouse
• Apple Keyboard with Numeric Keypad (English) & User's Guide
For 2499 USD, I still need to add more RAM, and It will costs 2874 USD with 8 Gb, but without changing Processor and/or HDD for SSD to speed up computer like **** and enjoy it every minute. I maximum can spend 3000-3200 USD for new computer. And all I want, to enjoy it’s stability and speed. To load photoshop in less then 5 seconds, working with AE a bit, 3dmax a bit, play a bit. Maybe I want to much :/

Need help about 1015

need help about 1015 it says connect iphone to itunes on screen i did it but it doesnt work and says unexpected 1015

Try restoring it: Make sure you are following the instructions in this procedure to the letter. Here they are, with emphasis on some easily overlooked requirements:
Disconnect the USB cable from the iPhone, but leave the other end of the cable connected to your computer's USB port.
Turn off the device: Press and hold the Sleep/Wake button for a few seconds until the red slider appears, then slide the slider. Wait for the device to turn off.If you cannot turn off the device using the slider, press and hold the Sleep/Wake and Home buttons at the same time. When the device turns off, release only the Sleep/Wake button.
Continue pressing and holding the Home button while you reconnect the USB cable to the device. The device should turn on.
Note: If you see the "low battery" screen, let the device charge for at least ten minutes to ensure that the battery has some charge, and then start with step 2 again.
Continue holding the Home button until you see the "Connect to iTunes" screen. When this screen appears (iTunes icon and USB connector) release the Home button.
If necessary, open iTunes. You should see the "recovery mode" alert ("iTunes has detected a phone in recovery mode").
Use iTunes to restore the device.
If you do not see the "Connect to iTunes" screen, try these steps again.
If you see the "Connect to iTunes" screen but the device does not appear in iTunes, see this article and its related links.
If you have backed up the iPhone in the past, select the device in iTunes and choose "restore from backup".

Do I need a specific Mac Pro video card or will any do?

Hi, I had a quick question. I'm looking at purchasing a 2010 8-core Mac Pro and was wondering about the video card. Is there a specific video card needed for the Mac Pro or can I purchase just a typical ATI 5870 from ebay and install that? Is there really a difference between a PC graphic cards and a Mac graphics card?

Stick to the Apple cards. There is an important difference, and that is non-Apple cards do not work until the startup sequence is completed unless you use them on VGA. That means you cannot use any normal startup keyboard shortcuts unless the card is in VGA mode. This is because non-Apple cards do not have the Apple bootable ROM.
Apple sells the 5870 directly on their website. And, there's nothing wrong with the 5770 card that comes with the Mac Pro. Be sure you really need the performance of the 5870 before spending the extra money for it.

Need help placing a like button on my site.

I have managed to put a like button on my site, but now i have the next problem. If you look on my site
http://www.dorff.nl/
You will see the facebook like buttons hanging on the left side of the page. I really want to place the button on the right side..next to the black buton with the text "mijn portfolio".
Can you tell me how can i do this?
Regards Brian

Hi Ken,
i got an other question... it looks like this one but i think i need a little push into the right direction.
On my site at this page
http://www.dorff.nl/company.html
There is only text.. Now i want to place an image next to Dorff Design
How can i do this??? The image name is Monitor...
i think i need a litlle code for css. And i need to place the image inside a div... i think?
Hope you give me a start..
Regards Brian
Date: Mon, 9 Apr 2012 06:52:15 -0600
From: [email protected]
To: [email protected]
Subject: Need help placing a like button on my site.
    Re: Need help placing a like button on my site.
    created by Ken Binney in Dreamweaver - View the full discussion
You're welcome From my hasty little tip, it looks like you ran with it and added this to your style.css .fb-like Good work guy! PS It's a handsome design.
     Replies to this message go to everyone subscribed to this thread, not directly to the person who posted the message. To post a reply, either reply to this email or visit the message page: http://forums.adobe.com/message/4321953#4321953
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Need help about Hidden Markov Model model

I want to make classification for EEG signal using Hidden Markov Model
algorithm based on neural network.
plz need help about how to implement this algorithm using LABVIEW.
if not I want another thing to make classification.
any one know information about this topic, send me a reply
thanks

Have you derrived the HMM that you want to implement?
If so, post the algorithm and we can provide comments on how to implement it using LabVIEW.
Message Edited by Ray.R on 04-12-2010 12:54 PM

Now i have tryied everything i need help getting premier pro trial real help pls!

now i have tryied everything i need help getting premier pro trial real help pls!

Hi,
Are you facing issues installing Premiere pro trial?
Please mention your operating system.
Error(If you're getting any)
Thank you,
Mohd Naseem

Need help about ref cursor using like table

Hi Guys...
I am devloping package function And i need help about cursor
One of my function return sys_refcursor. And the return cursor need to be
join another table in database . I don't have to fetch all rows in cursor
All i need to join ref cursor and another table in sql clause
like below
select a.aa , b.cc form ( ref_cursor ) A, table B
where A.dd = B.dd
I appeciate it in advance

My understanding is that you have a function that returns a refcursor and is called by a java app.
Because this is a commonly used bit of code, you also want to reuse this cursor in other bits of sql and so you want to include it like table in a bit of sql and join that refcursor to other tables.
It's not as easy as you might hope but you can probably achieve this with pipelined functions.
Is it a direction that code should be going down? yes, eventually. I like the idea of pulling commonly used bits of code into a SQL statement especially into the WITH section, provided it could be used efficiently by the CBO.
Is it worth the effort given what you have to do currently to implement it? possibly not.
what else could you do? construct the sql statement independently of the thing that used it and reuse that sql statement rather than the refcursor it returns?
Message was edited by:
dombrooks

Need help about boot SUNFIRE V120

Hi all....
I need help about how to change boot from boot net to boot disk....
after i installed sun solaris 10 at my sunfire v120, then reboot the machine ... this sunfire still boot from net not from disk...
can i change it?
please i really need help ....
thanks

If its booted, try "eeprom boot-device=disk"
If your at the OBP, "setenv boot-device disk".
If that doesnt work check the value of "diag-switch?".
It could be booting off the the diag-device instead

Need Help about 3D and revolving in illustrator

I really need help about 3D, Please tell me that How i create 3D in illustrator
i want to revolve text or shape around any object like this, any plugin? or other software required for this?
if somebody know this it will be really help full
   http://rcgrafix.fizwig.com/1452732-large.jpg
   http://rcgrafix.fizwig.com/1384370-large.jpg
   http://rcgrafix.fizwig.com/1062180-large.jpg
Thanks
Arsi

if links are not working try Copy and paste it in to your browser address bar
thank you

Need help about the SHA Message Digest ? & what is use of Message Diagest ?

need help about the SHA Message Digest ? & what is use of Message Diagest ?
1>i have one program of making message digest
2>which requires two files name
3>one for input like txt
4> second is out put file of message digest
can any one tell what is the use of second generated file .

MessageDigest md = MessageDigest.getInstance("SHA");
FileInputStream fis = new FileInputStream(args[0]);
byte[] b = new byte[1024];
int readed = -1;
while((readed = fis.read(b)) > 0)
     md.update(b, 0, readed);
fis.close();
FileOutputStream fos = new FileOutputStream(args[1]);
byte[] d = md.digest();
StringBuffer sb = new StringBuffer();
for(int i = 0; i < d.length; i++) {
     String str = Integer.toHexString(d[i] & 0xff);
     sb.append(str.length() < 2 ? "0" + str : str);
fos.write(sb.toString().getBytes());
fos.close();

Amateur need help about mac pro buttons

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