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Different types of computer have slightly different character sets. Many character sets
also have codes for control characters. These non-printing characters are used for
special purposes.
Examples of control characters are, end of record and end of file markers in a file,
carriage return and line feed for a printer, begin and end transmission with a modem and
cursor movement on a screen. Over the years, different computer designers have used
different sets of codes for representing characters, which has led to great difficulty in
transferring information from one computer to another. Most computers nowadays use
internationally agreed character sets. Unless the coding scheme (character set) is
standard, it will not be possible to exchange textual data between computers.
ASCII
___________(American Standard Code for Information Interchange) is the most widely
used coding system to represent data.
ASCII is used on many personal computers and minicomputers.
ASCII is a 7-bit code that permits 27=128 distinct characters.
The 128 different combinations that can be represented in 7 bits are plenty to allow for
all the letters, numbers and special symbols. An eight bit was added. This allowed extra
128 characters to be represented. The extra 128 combinations are used for symbols
such as Ç ü è ©, ®, Æ, etc.
The codes for the alphabetical characters indicate their relative positions in the alphabet
in ASCII. This is known as collating sequence, thus, sorting textual items can be
transformed into sorting the corresponding character codes. Also, in ASCII, uppercase
characters, lowercase characters and digits etc, are grouped together. So it is easy to
map between upper and lower case characters.
ASCII
Value Character
ASCII
Value Character
ASCII
Value Character
ASCII
Value Character
000 NUL 032 blank 064 @ 096 '
001 SOH 033 ! 065 A 097 a
002 STX 034 " 066 B 098 b
003 ETX 035 # 067 C 099 c
004 EOT 036 $ 068 D 100 d
005 ENQ 037 % 069 E 101 e
006 ACK 038 & 070 F 102 f
007 BEL 039 ' 071 G 103 g
008 BS 040 ( 072 H 104 h
009 HT 041 ) 073 I 105 I
Student Notes Theory
What else can I help you with?
What does bit represent?
A bit, short for "binary digit," is the smallest unit of data in computing and digital communications. It can represent one of two values: 0 or 1. Bits are the fundamental building blocks for all types of data storage and processing, enabling complex information to be encoded, transmitted, and manipulated in digital systems. In combinations, bits form larger units such as bytes, which are used to represent more complex data like characters and numbers.
What does representing data mean?
to represent the data givin, or you have found
What is PHP data coding?
PHP data coding is softwares that allows or has frameworks which can make PHP input to it's own script language. So you may code programs for example with PHP, just that it has to be extended PHP because of new functions and features. It may also be application coding for the web.
What is the difference between Coding and Encoding?
1. If you are writing few lines in any computational language in order to achieve certain result, this is called coding. It is understandable to anyone knowing that particular language. Encoding is basically finding an alternate way to represent data such as to make it easier to port across various platforms.e.g. Unicode, ASCII etc. Encoding sometimes in terms of electronics also means encrypting the data e.g. Hoffman encoding
What code is used to represent strictly numerical data?
Strictly numerical data is typically represented using numeric codes such as integers or floating-point numbers. In databases, this data can be stored using data types like INTEGER or FLOAT, depending on whether whole numbers or decimal values are needed. In programming, numerical data can also be represented in formats like binary or hexadecimal for computational purposes. Overall, the coding depends on the specific context and requirements of the application.
What are the two popular coding schemes used in computer processing?
There are a number of popular coding schemes used in computer processing but ASCII and EBCDIC are the most well known. Both are 8-bit codes using binary numbers to represent data.
The coding system for text base data?
The coding system for text-based data refers to the character encoding used to represent text characters as binary data in computers. Examples of coding systems include ASCII, Unicode, and UTF-8, each with its own set of characters and encoding rules. By using a specific coding system, text data can be stored, processed, and displayed correctly across different platforms and devices.
What is data coding?
Coding data means condensing large data sets into codes to represent the data and to allow processing to be more effective as well as producing more useful information for the user
What does DEEDS mean in medical coding?
Data Elements for Emergency Department Systems
What is the most widely used coding scheme used to represent data?
ASCII
What has the author Tracey Ho written?
Tracey Ho has written: 'Network coding' -- subject(s): Mathematics, Coding theory, Telecommunication, Mathematical models, Computer networks, Packet switching (Data transmission), Data transmission systems
The most widely used coding scheme used to represent data?
Binary is the base for all coding in a PC.
What has the author A M Kondoz written?
A. M. Kondoz has written: 'Visual media coding and transmission' -- subject(s): Video compression, Coding theory, Multimedia communications, Data transmission systems 'Digital Speech' -- subject(s): Speech processing systems, Coding theory, Signal processing, Digital techniques
What is the meaning of CCS in medical coding?
In medical coding, CCS stands for Certified Coding Specialist. It is a professional certification credential awarded by the American Health Information Management Association (AHIMA) to individuals who demonstrate expertise in coding and classification systems for healthcare data. CCS-certified professionals are skilled in coding diagnoses and procedures using various coding systems, ensuring compliance with regulations and improving the accuracy of health records. This certification is often sought after for advanced coding positions in the healthcare industry.
What scheme is the most widely used coding scheme to represent data that is used by most personal computers and servers?
American Standard Code for Information Interchange ASCII is the most widely used coding scheme.
What is the significance of the double bracket notation in the context of coding languages?
The double bracket notation is significant in coding languages as it is commonly used to represent specific data structures, such as arrays or lists. This notation helps programmers easily identify and manipulate collections of data within their code.
Define line coding in data communication?
process oftransfer of digital data to digital signal is known as line coding
