Data Representation

First..

SOURCES of Data :

1.Original
2.Previously stored

Digitizing is taking data and convert it into BINARY form for the computer to understand.

Somethings for storing BINARY data :
-Optical
-Electronic
-Magnetic

Bit is the smallest unit of data that a computer uses.
4 Bits = 1 nibble
8 bits = 1 byte
Information move into computer in bytes or on multiple bytes which we call "words".


IMPORTANT characteristics of storage devices
-Speed Time
-Cost
-Capacity
-Type of Access

Software

Software is the instructor of the CPU.
It tells the computer what to do.

There are two types : System.ystem & Application Software
They differ of their uses.

Platform is defined by a processor and an operating system.
Some softwares can't be run on some platforms.

Computer System

Computer System

As I've learned, it has 3 works. "INPUT,PROCESS and OUTPUT"
It is with hardwares and softwares.

There are 3 types of Computer : DIGITAL,ANALOG and uhmm.. HYBRID
Digital Computers are divided into 4 groups : Micro, Mini,Mainframe and Super Computer.

Hardware Specs and System Requirements

I could describe hardware specs using a word : "CAPABILITY"
It is different to System Requirements

System Requirements is also hardware specs to be able to run a particular computer software but minimum.

That's all.. :)

4th Quarter

4th Quarter !!

Here I come..

At Last

At last,

We're finished ..

Thank you for reading ..

And Thanks also to Sir Tomas ...

Goodbye !! :D :D

Macros

Hmm..

Macros are used to format a cell using specific keys.

Just record it.. Then, when you pressed the key you assigned,

The selected cell will change the format to what you have recorded..

That's all..

Charts

There are diff. types of charts.
Some of them are :

Column Chart - useful for showing data
changes over a period of time or
for illustrating comparisons among
items.

Pie Chart - show the size of items in one
data series, proportional to the
sum of the items.

Line Chart - display continuous data over time.
Bar Chart - illustrate comparisons among individual items.

Area Chart - emphasize the magnitude of
change over time.


To use charts, go to the Insert option ..

Next : Macros