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1 Data Encryption Standard
"An encryption algorithm that uses a 56-bit key and maps a 64-bit input block to a 64-bit output block. The key appears to be a 64-bit key, but one bit in each of the eight bytes is used for odd parity, resulting in 56 bits of usable key." -
2 data encryption key
A bit string that is used in conjunction with an encryption algorithm to encrypt and decrypt data. -
3 bit
"A data type that stores either a 1 or 0 value. Integer values other than 1 or 0 are accepted, but they are always interpreted as 1."بت -
4 64 bit machine
"A computer that works with data in groups of 64 bits at a time. A computer may be considered a 64-bit machine either because its CPU operates internally on 64-bit words or because its data bus can transfer 64 bits at a time. A 64-bit CPU thus has a word size of 64 bits, or 8 bytes; a 64-bit data bus has 64 data lines, so it ferries information through the system in sets of 64 bits at a time. Examples of 64-bit architecture include the Alpha AXP from Digital Equipment Corporation, the Ultra workstation from Sun Microsystems, Inc., and the PowerPC 620 from Motorola and IBM." -
5 40-bit encryption
A low level of encryption that uses a 40-bit key to scramble the contents of a file or data packet to make the data unreadable without the decryption key. -
6 128-bit encryption
A high level of encryption that uses a 128-bit key to scramble the contents of a file or data packet to make the data unreadable without the decryption key. -
7 parity bit
"In asynchronous communications, an extra bit used in checking for errors in groups of data bits transferred within or between computer systems. In modem-to-modem communications, a parity bit is often used to check the accuracy with which each character is transmitted." -
8 multiple bit rate
A characteristic of a data stream in which the same content is encoded at several different bit rates in oder to optimize content delivery. -
9 Double data type
"A fundamental data type that holds double-precision floating-point numbers. It's stored as a 64-bit number ranging in value from approximately -1.797E308 to -4.940E-324 (negative), from 4.94E-324 to 1.797E308 (positive), and 0." -
10 Long data type
"A fundamental data type that holds large integers. A Long variable is stored as a 32-bit number ranging in value from -2,147,483,648 to 2,147,483,647." -
11 Integer data type
"A fundamental data type that holds integers. An Integer variable is stored as a 16-bit (2-byte) number ranging in value from -32,768 to 32,767." -
12 Single data type
A data type that stores single-precision floating-point variables as 32-bit (4-byte) floating-point numbers ranging in value from -3.402823E38 to -1.401298E-45 for negative values and 1.401298E-45 to 3.402823E38 for positive values. -
13 Boolean data type
"A data type with only two passable values, True (-1) or False (0). Boolean variables are stored as 16-bit (2-byte) numbers." -
14 PIC S9(4) COMP Integer
"A 16-bit COBOL data type that represents signed arithmetic operations occupying 2 bytes of storage, and can take on values from -9999 to +9999 or -32768 to +32767. A PIC S9(4) COMP integer is normally analogous to an Integer data type in Microsoft© Visual Basic© and a Short Integer in C when referring to 32-bit." -
15 Type-Length-Value
"A method of organizing data that involves a Type code (16 bit), a specified length of a Value field (16 bit), and the data in the Value field (variable)." -
16 Type, Length, Value
"A method of organizing data that involves a Type code (16 bit), a specified length of a Value field (16 bit), and the data in the Value field (variable).""Type, Length, Value" -
17 TLV
"A method of organizing data that involves a Type code (16 bit), a specified length of a Value field (16 bit), and the data in the Value field (variable)." -
18 PowerPC
"A microprocessor architecture developed in 1992 by Motorola and IBM, with some participation by Apple. A PowerPC microprocessor is RISC-based and superscalar, with a 64-bit data bus and 32-bit address bus. It also has separate data and instruction caches, although the size of each varies by implementation. All PowerPC microprocessors have multiple integer and floating-point units. The voltage and operating speed varies with the implementation. Starting with the PowerPC 740, the microprocessors were manufactured with copper, instead of aluminum, for better performance and reliability." -
19 ar-sa المؤدّي
"A standard single-byte character encoding scheme used for text-based data. ASCII uses designated 7-bit or 8-bit number combinations to represent either 128 or 256 possible characters. Standard ASCII uses 7 bits to represent all uppercase and lowercase letters, the numbers 0 through 9, punctuation marks, and special control characters used in U.S. English. Most current x86-based systems support the use of extended (or ""high"") ASCII. Extended ASCII allows the eighth bit of each character to identify an additional 128 special symbol characters, foreign-language letters, and graphic symbols." -
20 ASCII
"A standard single-byte character encoding scheme used for text-based data. ASCII uses designated 7-bit or 8-bit number combinations to represent either 128 or 256 possible characters. Standard ASCII uses 7 bits to represent all uppercase and lowercase letters, the numbers 0 through 9, punctuation marks, and special control characters used in U.S. English. Most current x86-based systems support the use of extended (or ""high"") ASCII. Extended ASCII allows the eighth bit of each character to identify an additional 128 special symbol characters, foreign-language letters, and graphic symbols."
См. также в других словарях:
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