Hi everybody , it's first week of study Computers and Internet class, and most of the things aren't new for us. In first week we mostly spent our time to recognize each others and we didn't study much , but I don't mean that we didn't study anything. There were plenty of things to study and I'm going to reflect about them now. First we learnt what's computer. Computer is A
programmable
machine that carries out what it has been instructed to do. Basic
operations that a computer can perform:
Octal Number system
•Input
•Processing
•Output
•Storage
Others
:
•Communication
We Studied about the Information processing cycle too. Information processing cycle is
•A
computer converts data
(from input) to become information (as
output).
•Processing
requires a set of instructions, known as programs or software.
•A
computer holds data, instructions and information in storage for
future use.
•Data
: a collection of unprocessed items such as text, numbers, images, audio and
video.
•Information
: meaningful and useful facts to people.
We learnt about Computer Hardware and Software also.
Computer Hardware
•The electrical, electronic or mechanical
parts of a computer.
•Includes:
–Input devices
–Output devices
–System unit
–Storage devices
–Communication devices
Computer Software
•Also known as a program –
a series of related instructions, organized for a common purpose.
•It tells the computer what task to perform
and how to do it.
–System software
–Application software
In class we studied about the numbers too there are 3 types of number systems which we studied this week and they are
Binary Number system
•It uses two numerals/ digits
to form a string of numbers. They are 0 and 1. Known
as BITS too.
•It uses eight numerals
to form a string of numbers. They are 0, 1, 2, 3, 4,
5, 6 and 7.
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.
And in the class we learnt how to convert numbers from each other to each others. That's all what we've learnt in this week and first week of study was very interesting and meaningful. I really like the clas and we really learnt many useful things.
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