~_~ CONVERSION OF NUMBER SYSTEM ~_~

1. DECIMAL TO BINARY CONVERSION

-This conversion need the decimal (Base-10) repeatedly divide by 2 till the quotient is Zero.

-The binary bits will be read from below to top.

2. BINARY TO DECIMAL CONVERSION

-Whereas this conversion need to find the value of bit 0, bit 1, bit 2, bit 3 ....and so on. 

-So,we must draw a table and fill in the value of the bit and multiply the digits with the position values.

3. DECIMAL TO OCTAL CONVERSION

-Whereas this conversion quite same with decimal to binary conversion.

-because this conversion also need to divide repeatedly by 8 until the reminder less than 8.

-The octal digit needed to read from below to top also same like the conversion of decimal to binary.

4. OCTAL TO DECIMAL CONVERSION

-This conversion need to use the table to find the value of digit 1, digit 2, digit 3...and so on.

-So, we can multiply the digits with the position values that fill in the tables to find the answer.

5. DECIMAL TO HEX CONVERSION

-This conversion also use the same method as decimal to binary and decimal to octal conversion.

-We just need to divide the values with 16 until remainder less than 15.

Number System.....=) ~Decimal,,,Binary,,,Octal,,,& Hexadecimal.........

Decimal Number System consists 10 numerals...:
=The values are 0,1,2,3,4,5,6,7,8,& 9....
=It's also known as Base-10....


Binary Number System only consists 2 numerals/digits...
=it's just 0 & 1....
=This number system also known as BITS @ Base-2....
=This number system constantly used by computer....

=0 & 1 also have their own meaning & easy to represent  the values that usually used in       electrical e.g voltages..currents
...0~no  signal
...1~signal


Octal Number System
=This number system represents 8 of numeral....=
=it's 0,1,2,3,4,5,6,7....
=This number system popular with named Based-8....


Hexadecimal Number System
=This number system uses 16 symbol....
=it's combined number & letter....
=They are 0,1,2,3,4,5,6,7,8,9  &  A,B,C,D,E,F....
=This number known as Base-16

Introduction 2 Computer & Internet

ICT
-Information & Communication Technology...

Computer
-A programable machine that carries out what ih has been instructed to do...

Computer Operation is divided to...:
>Input
>Processing
>Output
>Storage
>Communication


Computer Components...?

=) Computer Hardware
*Input devices
*Output Devices (speaker,,headphones,,screen,,printer,,)
*System Unit
*Storage Devices
*Communication Devices

=) Computer Software
*Program - series of related instruction , organized , for a common purpose.
*System Software
*Application Software

Some Computer Characteristics
~Speed
~Reliability
~Consistency
~Storage
~Communication