What is Unicode and ASCII Code

So, Today we are going to discuss the topic “What is Unicode and ASCII code”. In today’s blog, we will learn about Unicode and ASCII code, Its differences, and also its advantages and disadvantages.

So, let start with the UNICODE

What is Unicode?

Unicode is a universal character encoding standard. It defines to represents the text files, documents, web pages, and most of the world’s writing systems, It is known as “Unicode”. The Unicodes provide a consistent way of coding multilingual plain, which makes it easier to text all the files internationally.

Unicode can be implemented by different character encodings. The most commonly used encodings are UTF-8( Which uses one byte for any ASCII characters, Which have the same code value in both ASCII and UTF-8 coding and end up to 4 bytes for other characters.

Unicode is required with XML, the Java language programming language, JavaScript, XML, LDAP, and other web-based technologies etc.

Advantages:

  • It is simplified application development.
  • It can store characters from more than one language.
  • It has Multi-lingual applications in data, (UI)user interface, and reports.
  • It is the universal coding scheme followed throughout the world.
  • And, the UTF-8 is an efficient encoding for storing and transmitting Unicode characters.

Disadvantages

  • A significant disadvantage of the Unicode is its memory requirement for UTF-16 and UTF-32.
  • Unicode requires more space because it has a large variety of characters.
  • It uses more bytes for larger alphabetic symbols.

What is ASCII Code?

ASCII stands for (American Standard Code for Information Interexchange). An ASCII is an alphanumeric code that is used for representing the numbers, alphabets, punctuations symbols and other characters, It is known as ASCII code.

It is a code that represents the represent 10 decimal digits, 26 alphabets, and certain other symbols such as punctuation marks and special characters. Most of the modern encoding character is based on ASCII, although they also support many other characters.

ASCII code is a seven bit code that means it is used for identifying key press on the Keyboard. As, you know it is a seven bit character code but for all the practical purposes it is an eight bit code.

ASCII developed from telegraphic codes in 1963. It is published by X3 committee, Which is a part of ASA (American Standards Association).

Advantages:

  • ASCII code takes less space as it has only 256 characters.
  • it stores all alphanumeric characters.
  • The demand for memory in ASCII is less than the Unicode
  • ASCII code is standardized

Disadvantages:

  • The main problem with ASCII is that it has an 8-bit character that means the maximum of 255 characters can be represented.

ASCII Chart (all alphabet and characters)

Upper case character chart

Upper case
alphabet
Decimal
value
Binary
value
A06501000001
B06601000010
C06701000011
D06801000100
E06901000101
F07001000110
G07101000111
H07201001000
I07301001001
J07401001010
K07501001011
L07601001100
M07701001101
N07801001110
O07901001111
P08001010000
Q08101010001
R08201010010
S08301010011
T08401010100
U08501010101
V08601010110
W08701010111
X08801011000
Y08901011001
Z09001011010

Now, let see the lower case character chart:

Lower case character chart

Lower case
alphabet
Decimal
value
Binary
value
a09701100001
b09801100010
c09901100011
d10001100100
e10101100101
f10201100110
g10301100111
h10401101000
i10501101001
j10601101010
k10701101011
l10801101100
m10901101101
n11001101110
o11101101111
p11201110000
q11301110001
r11401110010
s11501110011
t11601110100
u11701110101
v11801110110
w11901110111
x12001111000
y12101111001
z12201111010

Now, let see the other characters chart

Other Characters Chart

Other
Character
Value
Decimal
Value
Binary
Value
!03300100001
03400100010
#03500100011
$03600100100
%03700100101
&03800100110
03900100111
(04000101000
)04100101001
*04200101010
+04300101011
,04400101100
04500101101
.04600101110
/04700101111
:05800111010
;05900111011
<06000111100
=06100111101
>06200111110
?06300111111
@06401000000

Difference B/W Unicode And ASCII

BasisUNICODEASCII
1. DefinitionIt is a universal character standard
that encodes to represents the text
files, document, and other
pages, It is known as Unicode.
ASCII is a character encoding
the standard for electronic communication,
It is known as ASCII.
2. Full formIt stands for Universal Character Set.It stands for American Standard Code for
Information Interchange.
3. Character supportIt supports a wide range of characters.It supports only 128 characters.
4. Uses of BitIt uses 8 bit, 16 bit, and 32 bit.It uses only 7 bit of character.
5. Space RequireIt requires more space.And, It requires less space

Conclusion:

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