Skip to main content

Describe absolute binary, BCD, ASCII and Unicode.

 .

Absolute binary, BCD, ASCII, and Unicode are all different methods of representing characters, numbers and other data in binary format.

  1. Absolute binary: Absolute binary is a numerical system that uses only two digits, 0 and 1, to represent all numbers and characters. Each digit represents a power of two, with the rightmost digit representing 2^0, the next digit representing 2^1, and so on.
  2. BCD (Binary-Coded Decimal): BCD is a method of representing decimal numbers using binary code. In BCD, each decimal digit is represented by a four-bit binary code, which can be used to represent numbers frim 0 to 9. BCD is commonly used in electronic devices such as calculators and digital clocks.
  3. ASCII (American Standard Code for Information Interchange): ASCII is a widely used code that represents characters as a sequence of seven bits. It includes codes for 128 characters, including letters, numbers and symbols. ASCII is commonly used in computer systems, telecommunications and other industries.
  4. Unicode: Unicode is a universal character encoding standard that can represent all characters from all writing systems in the world. It uses 8, 16, or 32 bits to represent a character, depending on the complexity of the character. Unicode includes more than 14300 characters from over 150 scripts and symbol sets.
In summary, absolute binary, BCD, ASCII and Unicode are all methods of representing data in binary format, with each system having its own unique advantages and disadvantages. The choice of which system to use will depend on the specific requirements of the application or system being designed.

Comments

Post a Comment

Popular posts from this blog

Introduction of Computer

.  A computer is an electronic device. It take input and store the data in memory and performing the function to produce accurate result in output device. It is used to type document, send email, play game, browse the web and entertainment.   Characteristics of computer  1 . High speed  Computer is very fast device. It is capable of performing calculation of very large amount of data. The computer has unit of speed in microsecond, nanosecond and even in picosecond. The computer is capable of performing millions of tasks per second. 2. Accuracy  The computer produces highly accurate and reliable result.  It does not make any kind of mistake in calculating. The calculation are 100% error free. The computers perform accurate 'n' number of times. 3. Storage capability A computer has much more storage capability. It can store large amount of data. It can store any type of data such as image, video, text document, audio and many more. 4. Diligence Diligence ...
1 comment
Read more

Introduce Linux, UNIX and Linux distribution.

 . Linux Linux is an open source operating system. The term Linux is actually referred to mean a kernel of Unix like operating system developed by a Finish software architect Linus Torvald. The name Linux is derived from Linus' Unix. Linux was originated from the inspiration of a small Unix like operating system MINIX by A.S Tanenbum. Linux is a complete multiuser, multiprocessing, secure and stable operating system which is also considered as UNIX clone. However no code from the proprietary from AT and T is included in Unix. It has flavor of Unix but is not Unix. UNIX  UNIX is a layered operating system. The innermost layer is the hardware that provides the service for the OS. The operating system, referred to in UNIX as the kernel, interacts directly with the hardware and provides the services to the user program. These user programs don't need to know anything about the hardware. They just need to know how to interact with the kernel and it's up to the kernel to provide ...
Post a Comment
Read more

Open System Interconnect (OSI) Reference Model

 . Open system interconnection (OSI) Model explains how packet travels through various layers to other devices on a network, even if the sender and destination have different types of network media. Layer 1(Physical layer):  Function  To activate, maintain, deactivate the physical connection.  To define voltage and data rates needed for transmission.  To convert the digital bits into electrical signals.  To decide weather the transmission the transmission is simplex, half or full duplex.  Physical layer doesn’t perform the detection and correction of errors. Layer 2 (Datalink layer):  Framing (stream of bits into manageable data units):  The datalink layer divides the stream of bits received from the network layer into frame manageable data units called frames.  Physical addressing (MAC Address):  Data link layer adds a header to header to the frame to define the sender and receiver of the frame. Flow Control (mechanism for overwhel...
Post a Comment
Read more