Assalaamu alaikum..^_^
The first week of our class was fun
and interesting. My lecturer told us to introduce ourselves in front and we
were quite shy, but thankfully she just asked us individually and where we come
from. Our first topic was about the “Computers and Its Evolution” followed by
“The Difference between Data and Information and the Problems associated with
Information Management”. Let me tell you what I have learnt from this topic:
A
computer
is a programmable machine that carries out what it has been instructed to do.
It can perform basic operation such as Input,
Processing, Output and Storage.
The
Evolution of Computer
ü First Generation– Electronic Numerical
Integrator and Computers (ENIAC) which
18000 vacuum tubes were used and programmed by manually setting switches.
(1940-1950)
ü Second Generation – transistors (1950-1964)
ü Third Generation – integrated circuit combines
thousands of transistors, entire circuit on one computer chip. (1964-1974)
ü Fourth Generation – VLSI or ULSI are modern
computers ensured that millions of components could be fit into a
small chip. (1974-Present)
ü Fifth Generation – it is based on artificial intelligence
where computer can think, reason and
learn. (Now and the Future)
Categories
of Computers
1. Embedded Computers
2. Mobile/ Devices Computers
3. Personal Computers
4. Midrange Computers
5. Mainframe Computers
6. Supercomputers
7. Hybrid Computers
Data and Information
Data – are
raw facts that can be in the form of numbers, characters, symbols, pictures or
even sounds.
Information – is data that is organized and meaningful
and used for decision-making.
Roles of Information
Information
is used to persuade and influence people and is used for decision-making. It
has two basic elements: reach and richness.
·
Reach
means the number of people who participate in sharing information.
·
Richness
means amount of quality information shared in transaction. It has three
components: bandwidth, customization and interactivity.
Computer
System: Data and Information
A computer converts data form input to become information as output and it follows
the IPO method to process data. IPO means (Input, Processing, Output).
An
input is any data and instructions entered
into the memory of a computer – can be in the form of programs or commands, and
user responses. The output is data
that has been processed into a useful form.
Information
Management
Information
Management is a general terms that refers to managing any kind of information.
The six (6) problems of Information Management
The six (6) problems of Information Management
