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@ -190,56 +190,3 @@ At first, Alice's address will show the transaction from Joe as "Unconfirmed". T
Alice is now the proud owner of 0.10 bitcoin which she can spend. In the next chapter we will look at her first purchase with bitcoin and examine the underlying transaction and propagation technologies in more detail. Alice is now the proud owner of 0.10 bitcoin which she can spend. In the next chapter we will look at her first purchase with bitcoin and examine the underlying transaction and propagation technologies in more detail.
==== Bitcoin-Qt - The Reference Implementation, aka Satoshi Client
You can download the Satoshi Client from bitcoin.org. Depending on your operating system, it will be called bitcoin-qt or bitcoind. The reference client implements all aspects of the bitcoin system, including wallets, a transaction verification engine with a full copy of the entire transaciton ledger (blockchain) and a full network node in the peer-to-peer bitcoin network.
Go to http://bitcoin.org/en/choose-your-wallet and select "Bitcoin-Qt" to download the reference client. Depending on your operating system, you will download an executable installer. For Windows, this is either a ZIP archive or an EXE executable. For Mac OS it is DMG disk image. Linux versions include a PPA package for Ubuntu or a TAR.GZ archive.
===== Bitcoin-Qt - Download Options
[[bitcoin-qt-dl-options]]
.Bitcoin-Qt - Download options for different operating systems
image::images/bitcoin-qt-dl-options.png["bitcoin-qt download options"]
For developers, there is also the option to download the full source code, either as a ZIP archive or by cloning the authoritative source repository from Github. Go to https://github.com/bitcoin/bitcoin and select "Download ZIP" from the sidebar. Alternatively, use the git command line to create a local copy of the source code on your system. In the example below, we are cloning the source code from a unix-like command-line, in Linux or Mac OS:
----
$ git clone https://github.com/bitcoin/bitcoin.git
Cloning into 'bitcoin'...
remote: Counting objects: 31864, done.
remote: Compressing objects: 100% (12007/12007), done.
remote: Total 31864 (delta 24480), reused 26530 (delta 19621)
Receiving objects: 100% (31864/31864), 18.47 MiB | 119 KiB/s, done.
Resolving deltas: 100% (24480/24480), done.
$ cd bitcoin
$ ls
COPYING INSTALL Makefile.am README.md autogen.sh configure.ac contrib doc pkg.m4 qa share src
$
----
You can start exploring the source code, now that you have downloaded the latest version from the source repository. For information on compiling the bitcoin-qt client from source code, see <<compiling-bitcoin-qt>>.
===== Bitcoin-Qt - Running the client for the first time
If you download an installable package, such as an EXE, DMG or PPA, you can install it the same way as any application on your operating system. For Windows, run the EXE and follow the step-by-step instructions. For Mac OS, launch the DMG and drag the Bitcoin-QT icon into your Applications folder. For Ubuntu, double-click on the PPA in your File Explorer and it will open the package manager to install the package. Once you have completed installation you should have a new application "Bitcoin-Qt" in your application list. Double-click on the icon to start the bitcoin client.
The first time you run Bitcoin-Qt it will start downloading the blockchain, a process that may take several days. Leave it running in the background, until it displays "Synchronized" and no longer shows "Out of sync" next to the balance.
[TIP]
====
Bitcoin-Qt keeps a full copy of the transaction ledger (blockchain), with every transaction that has ever occured on the bitcoin network since its inception in 2009. This data set is several gigabytes in size (approximately 16GB in late 2013) and is downloaded incrementally over several days. The client will not be able to process transactions or update account balances until the full blockchain dataset is downloaded. During that time, the client will display "Out of sync" next to the account balances and show "Synchronizing" in the footer. Make sure you have enough disk space, bandwidth and time to complete the initial synchronization.
====
[[bitcoin-qt-firstload]]
.Bitcoin-Qt - The Graphical User Interface, during the blockchain initialization
image::images/bitcoin-qt-firstload.png["bitcoin-qt first run"]