question: Why does the Speaker of the House of Commons in the British Parliament yell out "unlock!" at the end of a vote?
comment: The doors to the chamber are locked during the vote for security and tradition and to make sure MPs aren't running in late all the time or seeing how the vote looks before deciding to vote at all. The doors are unlocked again as soon as the vote is over.
passages: An unlocker is a utility used to determine what process is locking a file, and displays a list of processes as well as choices on what to do with the process (kill task, unlock, etc.) along with a list of file options such as delete or rename. On some Unix-like systems, utilities such as and can be used to inspect the state of file locks by process, by filename, or both.
   In the United Kingdom, mobile phone network providers are not obliged to provide unlocking, even after the end of the contract. Ofcom, UK's telecom regulator, allowed 3 UK to sell a mobile phone with the SIM card permanently superglued to the phone. Most operators offer some form of unlocking service, depending on the state of the contract and the model of phone, but usually for a charge. The full Oftel 2002 SIM-lock position paper specifies that there is no SIM-locking law in the UK; the regulator wants only "consumer awareness". The examples within the position paper are just "examples" of current carrier practices for illustration purposes, but do not reflect any official Oftel regulation. The main networks often agree to unlock handsets for a charge, either at the end of a contract or, for prepaid handsets, after several months. Some Blackberry handsets supplied by Vodafone (e.g., Storm) are examples of a UK carrier not offering unlocking codes. As of April 2011 O will unlock any of their pay-monthly phones for free, even if they're still in contract, with the exception of handsets made exclusively for them, such as their Palm devices.
   Since the release of the BB5 generation, although numerous hacks has been released that allowed unlocking as of 2014 it was not possible to load modified firmware into a BB5 phone.
  
  Section::::Security Code.
  
  In 2009, Nemesis Service Suite (NSS) had become a popular software package in order to unlock and extract information from certain BB5 phones. With the use of extra equipment, many BB5 phone could be unlocked using NSS. NSS had also been a popular way to generate a master-code (a code for bypassing Nokia's unlock screen) for BB5 phones.
   In the United States and other areas, where carriers often offer deeply discounted cell phones in exchange for an exclusive agreement with a carrier, that phone will often be locked so it will not work with another carrier. Under the Digital Millennium Copyright Act of 1998 (DMCA), it was illegal to use technical means to circumvent copyright protection systems. Therefore, consumers could not use software to circumvent the carrier lock on their cell phones (sometimes referred to as "hacking").
   BULLET::::- Texas Instruments calculators (particularly the TI-85 and TI-82) were originally designed to use only interpreted programs written in dialects of TI-BASIC; however, after users discovered bugs that could be exploited to allow native Z-80 code to run on the calculator hardware, TI released programming data to support third-party development. (This did not carry on to the ARM-based TI-Nspire, for which jailbreaks using Ndless have been found but are still actively fought against by Texas Instruments.)
  
  BULLET::::- Some versions of the iPhone allow an unauthorised user to access the phone while it is locked.
  
  Section::::Vertical.:Jailbreaking.
   As part of the promotions for the drama series, a "Kaitō Yamaneko" version has been released, with the original poster of the drama as its cover and a coaster enclosed as a bonus. There is also a user code for mobile and smart phone users enclosed in this version which was used to download three versions of "Yamaneko" standby screens for a limited time only.
   Network carriers will sometimes agree to unlock their customers' phones upon request. While one could consider that the Digital Millennium Copyright Act brings the legality of such applications under question in the United States, recent legal cases such as "Lexmark Int'l v. Static Control Components" have confirmed that the use of software to reprogram such phones is not illegal. This is particularly true since unlocking applications increase compatibility with alternative networks, promote positive competition and allow customers greater freedom to use the phones that they own. In 2010, the Librarian of Congress exempted unlocking phones from the DMCA.
   Before carriers began voluntarily providing unlock codes for all phone models, in 2010 the Electronic Frontier Foundation (EFF) successfully convinced the United States Copyright Office to allow an exemption to the general prohibition on circumvention of copyright protection systems under the Digital Millennium Copyright Act of 1998 for unlocking of phones through user self-help (sometimes referred to as "hacking"). This exemption has become less important now that most carriers are voluntarily providing unlock codes.
   To switch from data mode to command mode, sessions sent an escape sequence string of three plus signs ("+++") followed by a pause of about a second. The pause at the end of the escape sequence was required to reduce the problem caused by in-band signaling: if any other data was received within one second of the three plus signs, it was not the escape sequence and would be sent as data. To switch back they sent the "online" command, O. In actual use many of the commands automatically switched to the online mode after completion, and it is rare for a user to use the online command explicitly.
   In June 2013, security researcher Steve Thomas pointed out a security bug that could be used to decrypt any group chat message that had taken place using Cryptocat between September 2012 and April 19, 2013. Private messages were not affected, and the bug had been resolved a month prior. In response, Cryptocat issued a security advisory, requested that all users ensure that they had upgraded, and informed users that past group conversations may have been compromised.
   Under revisions to the Canadian Radio-television and Telecommunications Commission (CRTC) Wireless Code of Conduct effective 1 December 2017, all new devices must be sold unlocked, and carriers must offer to unlock phones purchased prior to this date free of charge. Fees may be required if the customer was not under a contract or prepaid plan with the carrier.
   Section::::Activities.
  
  The charity delivers charitably-funded services for people with convictions. This includes a peer-run helpline that deals with over 5,000 enquiries a year, and a range of online services, including a self-help information site and a disclosure calculator. 
  
  The charity also works with government, employers, insurers and others, to challenge and support so that people with convictions are treated fairly.
  
  Section::::Leadership.
  
  The current President is General The Lord David Ramsbotham GCB CBE, formerly Her Majesty's Chief Inspector of Prisons and now a cross-bencher of the House of Lords.
   Bluetooth v2.1 – finalized in 2007 with consumer devices first appearing in 2009 – makes significant changes to Bluetooth's security, including pairing. See the pairing mechanisms section for more about these changes.
  
  Section::::Security.:Bluejacking.
   BULLET::::- Safari, Finder - the Option key causes the "Close Window" menu item to switch to "Close All Windows" when pressed down. Consequently, clicking a window's close box with the option key depressed invokes "close all" as well. This functionality is a de facto Macintosh standard and available in numerous other programs.
  
  BULLET::::- Dock - the Option key causes the "Hide" and "Quit" menu items in the context menu of a Dock icon to switch to "Hide Others" and "Force Quit".
   The shunning mechanism resolves such duels. When the new leader obtained a quorum during the INQUIRE phase, it also blocked the old leader from ever again achieving a quorum for any new PROPOSE it might initiate: a majority of members are now shunning the old leader. Thus if any proposal is missed by the new leader it necessarily is a proposal that didn't reach a quorum of members, and won't reach a quorum in the future. Moreover, members aware of such a proposal will be shunned by the new leader, since (when it gave up waiting for them to respond to its INQUIRE) it considers them to have failed. Any member learning of new proposals from the new leader will shun them as well.
   Prior to the introduction of the Wireless Code, New Democratic Party MP Bruce Hyer first attempted to mandate SIM unlocking at the end of cell phone contracts when he introduced a private member's bill entitled the Cell Phone Freedom Act in 2010. The act would not have banned SIM locking but would have required wireless carriers to unlock phones at no charge at the end of a cell phone contract. The bill was introduced in two sessions of parliament but failed to pass either time.
  
  Section::::Laws and practices.:China.
   BULLET::::- Turning off encryption is required for several normal operations, so it is problematic to detect if encryption is disabled for a valid reason or for a security attack.
  
  Bluetooth v2.1 addresses this in the following ways:
  
  BULLET::::- Encryption is required for all non-SDP (Service Discovery Protocol) connections
  
  BULLET::::- A new Encryption Pause and Resume feature is used for all normal operations that require that encryption be disabled. This enables easy identification of normal operation from security attacks.
  
  BULLET::::- The encryption key must be refreshed before it expires.
   Typically, a locked handset will display a message if a restricted SIM is used, requesting the unlock code. On recent phone models running Android software, the phone will display a message saying “SIM network unlock PIN” or “Enter Network Lock Control Key” if network locked. Windows phones will display the message, “This SIM card can only be used on specific networks. Contact your customer service center for the unlock code”. Other handsets may display different messages such as "Enter special code" or "Enter unlocking code," or in some cases the handset will simply display a message stating that it is locked. Once a valid code is entered, the handset will display "Network unlocked” or “Network unlock successful”.
   Section::::Unlocking technology.:Box breaking.
   A recently approved law requires network operators to unlock a device free of charge if the respective contract has already expired (But they refuse to do so charging at least 10 euros). It also establishes limits to the fees that operators may charge to unlock a device while it is still under contract.
  
  Section::::Laws and practices.:Romania.
   A similar method of jailbreaking exists for S60 Platform smartphones, where utilities such HelloOX allow the execution of unsigned code and full access to system files. or edited firmware (similar to the M33 hacked firmware used for the PlayStation Portable) to circumvent restrictions on unsigned code. Nokia has since issued updates to curb unauthorized jailbreaking, in a manner similar to Apple.
   The prompt is not strictly accurate in that, for the vast majority of computer systems, modifier keys or lock keys would not cause processing to resume, as they do not produce an actual character that the program could detect.
  
  Some Samsung remote controls for DVD players, as is the case of DVD-R130, have included an "anykey" to their interface. It is used to view the status of the DVD being watched.
  
  Section::::Cultural significance.
  
  A 1982 Apple Computer manual for developers warned:
   Section::::Laws and practices.:Ecuador.
  
  Although there is no specific law preventing SIM locking, as of December 2009 Ecuador's two biggest carriers, Porta and Movistar, unlock phones previously sold by them, without charge.
  
  Section::::Laws and practices.:European Union.
   SEAlink made one minor modification to this "standard", adding a byte in position 40 of the packet to indicate whether or not to use "overdrive". When turned on, by placing any non-zero number in byte 40, the receiver no longer expected ACK messages, but only NAKs. This was intended to reduce the bandwidth required from the receiver back to the sender, which was an important consideration on many of the early high-speed modems, which featured a very slow backchannel (75 bit/s in the Telebit modems, for instance).
   Unlock
  
  Unlock, unlocking and unlockable may refer to:
  
  Section::::Bypassing security.
  
  BULLET::::- To undo a lock (security device)
  
  BULLET::::- Phone unlocking, the removal of a SIM lock on a mobile phone
  
  BULLET::::- iOS jailbreaking, removing the limitations imposed by Apple, Inc. on iOS devices
  
  BULLET::::- Rooting (Android), allowing users of Android devices to obtain root access within Android's subsystem (similar to iOS jailbreaking)
  
  Section::::Video games.
  
  BULLET::::- Unlockable (gaming), content that is available in video games but not accessible unless something is performed by the user to access to it
  
  BULLET::::- Unlockable character, characters that can be unlocked in a video game
  