THINGS I'VE LEARNED FROM COMPUTER&INTERNET COURSE
WEEK 1
How
do computers represent data?
A bit is the most basic unit of information in
a computer.
1.It is a
state of “on” or “off” in a digital circuit.
2. Or “high”
or “low” voltage instead of “on” or “off.”
A byte is a group of eight bits.
A byte
is the smallest possible addressable unit of computer storage.
THE NUMBER SYSTEMS
Decimal Number Systems
It
uses ten numerals to form a string of numbers. The values are 0,
1, 2, 3, 4, 5, 6, 7, 8, and
9
Decimal
numbers
have a base
or radix
of ten,
written as X10 where X is any number string/ pattern.
Very
similar to the way we count and deal with numbers.
How
will you read 1810?
Binary Number Systems
It uses two numerals/ digits to form a
string of numbers. They are 0 and 1. Also known as BITS.
Binary numbers have a base
or radix
of two,
written as X2 where X is any number string/ pattern.
This is the number system used by
computers.
Example : 1102
Octal Number Systems
It uses eight numerals to form a string
of numbers. They are 0, 1, 2, 3, 4, 5, 6 and
7.
Octal numbers have a base
or radix
of eight,
written as X8 where X is any number string/ pattern.
Some binary quantities are written in
this number system, but not very popular.
Example : 458
Hexadecimal Number Systems
It
uses sixteen symbols (numerals + letters) to form a string of numbers. They are
0,
1, 2, 3, 4, 5, 6, 7, 8, 9, A, B, C, D and E. Also known as Hex.
Binary
numbers have a
base
or radix
of sixteen,
written as X16 where X is any number string/ pattern.
This
is the number system typically used to represent digital data.
Example
: 35B16
AND ABOUT CONVERSION
Decimal to Binary Conversion
EXAMPLE:Convert
1310 to Binary Repeatedly divide by 2 till
quotient is zero:
DIVIDE BY 2 QUOTIENT REMAINDER
13/2 6 1
6
/ 2 3 0
3
/ 2 1 1
1
/ 2 0 1
ANSWER: 1310=11012
TO FIND OUT MORE ABOUT CONVERSION VISIT:
TO SUM UP THROUGH LEARNING ABOUT NUMBERING SYSTEM I'VE UNDERSTOOD THE ROLE OF HUMAN INSTRUCTIONS IN CONTROLLING COMPUTERS.
MY LIFE IN AIU
So far everything is OK and I'm studying very hard that's why teachers are very friendly with me. I'm doing group work with other students in every subject and I love it. Especially, the course of Communication Skills is very interesting and effective for me because I want to be a manager in the future so I have to be a good leader and communicator.
There are many sports activities going on campus so I've taken part in most of them.
To conclude, I'm really enjoying my life these days!!!
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