ARJ password recovery options vary depending upon which version of ARJ was used to create the archive. Early version of ARJ utilized a simple XOR encryption scheme. Because the password is used to generate the encryption key, the difficulty of decrypting an ARJ archive depends directly on the length of the password which was used to encrypt the archive. For more information on ARJ’s XOR encryption, read Method of attacking arj encrypted files More recent versions of ARJ utilize a version of the Gost algorithm for strong encryption. ARJ XOR Read More

A Black Box is an electronic circuit (normally a resistor and capacitor placed in parallel) that can be placed on a phone line to provide a free phone call on legacy telephone systems. In order for a call to be free for the originating and receiving station, both have a have Black Box or other method implemented to avoid call charging. The box was a popular method used by telephone phreakers from the 1960s to 1980s. An alternative use of the Black Box is to incorporate them into the incoming Read More

Google Plus is a social networking website that Google sponsors, which allows users to communicate in a wide variety of ways. It is completely free for all Google users and provides them with the same methods of communication as other social networking services as well as several additional features that have never been seen before. Google Plus includes Circles, Huddle, Hangouts, Sparks, and individual user profiles, as well as multiple methods of managing how user updates are displayed.   Google Plus Videos Though Google Plus does not yet have a Read More

QVGA (Quarter Video Graphics Array or Quarter VGA) is a type of resolution whose dimensions are 320×240 pixels. The QVGA display is normally found in devices such as mobile phones and PDAs. The display is also common on other hand-held devices such as game consoles. Resolution Most of the time, the display is in the portrait layout as opposed to the landscape layout. They are also known as 240×320 displays because they are taller than they are wide. So why is it known as Quarter Video Graphics Array? It has Read More

A noble gas is a non-reactive, monatomic gas that is located on the far right edge of the periodic table. Noble gases include argon, helium, krypton, neon, radon, xenon, and unonoctium. Helium is the most common of the noble gases and argon is the most common on Earth, making up approximately one percent of the planet’s atmosphere. Helium is found throughout the universe, including on the Earth, and is also found in large quantities in underground reserves. Noble Gas Uses Noble gases are used when an inert atmosphere is required Read More

Network Attached Storage (NAS) is a term used to describe a complete storage system which is designed to be attached to a traditional data network. This differentiates Network Attached Storage devices from SAN's (Storage Area Networks). A SAN is a separate network to which storage devices are attached. In most cases, Network Attached Storage is less expensive to purchase and less complex to operate than a Storage Area Network. However, a SAN can provide better performance and a larger range of configuration options. Network Attached Storage Protocols NAS servers commonly Read More

ATAPI, Advanced Technology Attachment with Packet Interface is the standard interface (type of connection) used to connect hard drives, CD-ROM drives and other components like RAM, motherboard inside the CPUs of personal computers. It is the standard developed by Western Digital and maintained by the International Committee for Information Technology Standards (also known as the X3). ATAPI is an evolved form of ATA interface. However, further advancements in interface technology have produced the Serial ATA interface (2003) which is a step up from ATAPI. The ATAPI was designed in 1986 Read More

Tuning ISA Server Performance You can optimize ISA Server performance and tune the ISA Server cache. The ISA Server performance settings that you can tune to optimize the performance of the ISA Server computer exist on the Performance tab of the Array Properties dialog box. ISA Server caches objects to RAM and on disk. The default ISA Server configuration caches objects that are below 12,800 bytes in size in RAM. An object that is stored in RAM is retrieved faster by ISA Server than an object which is stored on Read More

The iPhone allows users to make voice memos while they are away from the computer. Users can make live recordings of their thoughts, shows, or just about anything that can be audibly detected. In order to extract a voice memo from the iPhone, either use the iTunes synchronization feature (with voice memos selected as an option to upload automatically when synced with the computer) or purchase a third party app that provides additional options to extract voice memos from the iPhone. How to Extract a Voice Memo from an iPhone Read More

The Simple Network Time Protocol (SNTP) is a simpler version of the Network Time Protocol (NTP). SNTP synchronizes the time between networked computer systems and is relied on when data is being transferred via the Internet. The NTP protocol is one of the most established protocols still used on the Internet. It uses a GPS or radio clock to tell time and is accurate past the seconds place. Why is the SNTP Necessary? The need for precise time synchronization has continued to increase with the evolution of computer technology over Read More