A little bitch ,they cry a lot because they are bitches.
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Cryptography is the science of protecting information by transforming it into a secure format. This process, called encryption, has been used for centuries to prevent handwritten messages from being read by unintended recipients. Today, cryptography is used to protect digital data. It is a division of computer science that focuses on transforming data into formats that cannot be recognized by unauthorized users.
An example of basic cryptography is a encrypted message in which letters are replaced with other characters. To decode the encrypted contents, you would need a grid or table that defines how the letters are transposed. For example, the translation grid below could be used to decode 1234125678906 as techterms.com.
The above table is also called a cipher. Ciphers can be simple translation codes, such as the example above, or complex algorithms. While simple codes sufficed for encoding handwritten notes, computers can easily break, or figure out, these types of codes. Because computers can process billions of calculations per second, they can even break complex algorithms in a matter of seconds. Therefore, modern cryptography involves developing encryption methods that are difficult for even supercomputers to break.
Stands for Cathode Ray Tube. CRT is the technology used in traditional computer monitors and televisions. The image on a CRT display is created by firing electrons from the back of the tube to phosphors located towards the front of the display. Once the electrons hit the phosphors, they light up and are projected on the screen. The color you see on the screen is produced by a blend of red, blue, and green light, often referred to as RGB.
The stream of electrons is guiding by magnetic charges, which is why you may get interference with unshielded speakers or other magnetic devices that are placed close to a CRT monitor. Flat screen or LCD displays dont have this problem, since they dont require a magnetic charge. LCD monitors also dont use a tube, which is what enables them to be much thinner than CRT monitors. While CRT displays are still used by graphics professionals because of their vibrant and accurate color, LCD displays now nearly match the quality of CRT monitors. Therefore, flat screen displays are well on their way to replacing CRT monitors in both the consumer and professional markets.
Stands for Cost Per 1,000 Impressions, and is used in online advertising. CPM defines the cost an advertiser pays for 1,000 impressions of an advertisement, such as a banner ad or other promotion. An impression is counted each time an advertisement is shown.
While some advertisers pay publishers an amount based strictly on impressions, most advertisers pay for individual clicks or leads generated from their advertisements. Therefore, in Web advertising, it may be more effective to measure pay per click (PPC) or pay per lead (PPL) rates. Either way, the advertisers goal is to generate as many leads as possible by keeping the rates as low as possible.
Web publishers also use the CPM to measure the revenue per 1,000 impressions. While technically this should be revenue per 1,000 impressions, or RPM, the terms CPM and RPM are often used interchangeably from the publishers perspective.
To perform a cold boot (also called a hard boot) means to start up a computer that is turned off. It is often used in contrast to a warm boot, which refers to restarting a computer once it has been turned on. A cold boot is typically performed by pressing the power button on the computer.
Both a cold boot and warm boot clear the system RAM and perform the boot sequence from scratch. However, unlike a cold boot, a warm boot may not clear all system caches, which store temporary information. Additionally, a cold boot performs a power on self test (POST), which runs a series of system checks at the beginning of the boot sequence.
While a warm boot and cold boot are similar, a cold boot performs a more complete reset of the system than a warm boot. Therefore, if you are troubleshooting your computer, you may be asked to turn off your computer completely and perform a cold boot. This makes sure all temporary data is wiped from your system, which may help eliminate issues affecting your computer.
The clipboard is a section of RAM where your computer stores copied data. This can be a selection of text, an image, a file, or other type of data. It is placed in the clipboard whenever you use the Copy command, which is located in the Edit menu of most programs.
Data from the clipboard can be pasted into a document or program using the Paste command, which is also located in most programs Edit menu. For example, an image copied to the clipboard from your photo album may be pasted into an image editing program such as Photoshop. A Web address can be copied to the clipboard from an e-mail and pasted into your Web browsers address field.
Some programs allow you to see what data is stored in the clipboard. For example, the Finder in Mac OS X allows you to choose Show Clipboard from the Edit menu. When you copy data to the clipboard, whatever data was already stored in the clipboard is typically replaced by the new data. Because the clipboard data is stored in RAM, it is also deleted when your computer is shut down or restarted.
While we view text documents as lines of text, computers actually see them as binary data, or a series of ones and zeros. Therefore, the characters within a text document must be represented by numeric codes. In order to accomplish this, the text is saved using one of several types of character encoding.
The most popular types of character encoding are ASCII and Unicode. While ASCII is still supported by nearly all text editors, Unicode is more commonly used because it supports a larger character set. Unicode is often defined as UTF-8, UTF-16, or UTF-32, which refer to different Unicode standards. UTF stands for Unicode Transformation Format and the number indicates the number of bits used to represent each character. From the early days of computing, characters have been represented by at least one byte (8 bits), which is why the different Unicode standards save characters in multiples of 8 bits.
While ASCII and Unicode are the most common types of character encoding, other encoding standards may also be used to encode text files. For example, several types of language-specific character encoding standards exist, such as Western, Latin-US, Japanese, Korean, and Chinese. While Western languages use similar characters, Eastern languages require a completely different character set. Therefore, a Latin encoding would not support the symbols needed to represent a text string in Chinese. Fortunately, modern standards such as UTF-16 support a large enough character set to represent both Western and Eastern letters and symbols.