CCA (Certificate in Computer Application)
It is 3 moth course .
Paint
Notepad
Word Pad
MS Word
MS Excel
MS Power Point
Q )What
is Computer?
o
Computer is an electronic device which take
input and give output
Or
o
A computer is a programmable electronic
device that accepts raw data as input and processes it with a set of
instructions (a program) to produce the result as output..
o
Or
o
A computer is a general purpose electronic
device that is used to perform arithmetic and logical operations automatically
Q ) Full form of
Computer
FULL FORM OF COMPUTER
1.
C_ Common
2. O_ Operating
3.
M_ Machine
4.
P_ Process
5. U_ Used for
6. T_ Technical
7.
E_ Educational
8.
R _ Research
v The basic parts
without which a computer cannot work are as follows:
Ø Processor _ It
executes instructions from software and hardware.
Ø Main Memory(RAM)_ It
is the primary memory for data transfer between the CPU and storage.
Ø Motherboard_ It
is the part that connects all other parts or components of a computer.
Ø Storage Device_ It
permanently stores the data, e.g., hard drive.
Ø Input Device_ It
allows you to communicate with the computer or to input data, e.g., a keyboard.
Ø Output Device_
It enables you to see the output,
e.g., monitor
v
Computer Components
There are 5 main computer components that are given below _
- Input Devices
- CPU
- Output Devices
4.
Primary Memory
- Secondary Memory
Ø Input Devices
Input device
enables the user to send data, information, or control signals to a
computer The Central Processing
Unit (CPU) of a computer receives the input and processes it to produce the output.
o Some of the popular input devices
are:
Output
Devices
o
The output device displays the result of the processing of
raw data that is entered in the computer through an input device. There are a
number of output devices that display output in different ways such as text,
images, hard copies, and audio or video.
Some of the popular
output devices are:
- Monitor
- Printer
- Projector
o Central Processing
Unit (CPU)
o
A Central Processing Unit is also called a processor, central
processor, or microprocessor. It carries out all the important functions of a
computer. It receives instructions from both the hardware and active software
and produces output accordingly. It stores all important programs like
operating systems and application software. CPU also helps Input and output
devices to communicate with each other. Owing to these features of CPU, it is
often referred to as the brain of the computer.
o
Motherboard:
o
The motherboard is generally a thin circuit board that holds
together almost all parts of a
computer except input and output devices. All crucial hardware like CPU, memory,
hard drive, and ports for input and output devices are located on the
motherboard. It is the biggest circuit board in a computer chassis
Components of a Motherboard:
1.
Mouse
& keyboard.
2.
USB.
3.
Parallel
port.
4.
CPU
Chip.
5.
RAM slots.
6.
Floppy
controller.
7.
IDE
controller.
8.
PCI slot(Peripheral Component Interconnect ).
Ø Hardware
Hardware, which is
abbreviated as HW, refers to all physical components of a computer system,
including the devices connected to it. You cannot create a computer or use
software without using hardware. The screen on which you are reading this
information is also a hardware.
Ø Software
Software, which is abbreviated as
SW or S/W, is a set of programs that enables the hardware to perform a specific
task. All the programs that run the computer are software.
Ø The
software can be of three types:
Ø
System Software
Ø Application
Software
Ø Programming
Software
System Software
The
system software is the main software that runs the computer. When you turn on
the computer, it activates the hardware and controls and coordinates their
functioning. The application programs are also controlled by system software.
An operating system is an example of system software.
Application Software:
Application software is a set of programs designed to perform
a specific task. It does not control the working of a computer as it is
designed for end-users. A computer can run without application software.
Application software can be easily installed or uninstalled as required.
Programming Software:
It is a set or collection of tools that help developers in
writing other software or programs
What is Ram(Random-access memory)
RAM is a volatile memory, which means it does
not store data or instructions permanently. When you switch on the computer the
data and instructions from the hard disk are stored in the RAM
What
is ROM?
ROM, which stands for read only memory, is a memory device
or storage medium that stores information permanently. It is also the primary
memory unit of a computer along with the random access memory (RAM). It is
called read only memory as we can only read the programs and data stored on it
but cannot write on it. It is restricted to reading words that are permanently Stored
with in the unit
Measurement of Memory
|
0.1 |
1Bit |
|
8 Bit |
1 Byte |
|
1024 Byte |
1 Kilo Byte(KB) |
|
1024 Killo Byte |
1 Mega Byte (MB) |
|
1024 Mega Byte |
1 Giga Byte |
|
1024 Giga Byte |
1 Tera Byte (TB) |
What is Icon?
The pictorial symbols that Reference
programming file that is called icon.
eg: My Computer
Recycle Bin
What is My Document!
Ø My document is used to store different types
of file and subfolder that is called my document .
What is My Computer?
Ø My Computer is Used to store different types
of driving file and subfolder that is called my computer.
Ø Local Disk(C)
Ø Local Disk(D)
Ø Local Disk(E)
Ø Local Disk(F)
What is Recycle Bin?
Recycle Bin is
used to store Different types of deleted file and subfolder that is called
recycle Bin .Deleted file return from recycle bin,”Restore”.
Q How to make folder?
Right
click in file or on window
Click
on new
Click
on folder
Put
the name of folder
Right click on folder
Open:-it is used to
open the folder
Search:- it is used to
search the file and sub folder
Explore:- it is used
to explore the folder
Scan:-it is used to
scan the folder
Send:- it is used to
send the folder one location to another location
Cut:- it used to cut
the selected folder
Copy:- it is used to
make a duplicate folder
Paste:- it is used to
paste the cut or copied folder
Rename:- it used to
change the folder name
Properties:- it used
to show the summary information about
your folder.
Q) How to set Date and
Time?
Click on control panel
Click on date and time
Set the date and time
Click on Apply on ok
Q) How to set Screen
Saver?
Click on start button
Search screen saver
Paint
File Menu
New = This Command is
used to make a new drawing.
Click on
file
Click on
new.
Open :- This Command
is used to exiting saved file.
Click on
file
Click on
Open.
Save :- This command
is used to save the new drawing
Click on
file
Click on
save
Save as :- This command is used to save to make a
duplicate drawing from original Drawing.
Click on
file
Click on
save as
Print preview :- This
command is used to show drawing increase and degrease the window size.
Print :- This command
is used to take print out in drawing.
Click on
file
Click on
print
Set as Desktop
Background :- This command is used to set the desktop backgroung in your
drawing and picture
Click on
file
Click on
set as background
Exit :-
This command in used to cut out from paint.
Click on
file
Click on
Exit.
Edit Menu
Undo :- This command is used to show
the previous action of the drawing.
Click on Edit.
Click on Undo (ctrl +z)
Redo :- This command is used to show
the lost action of the drawing.
Click on Edit
Click on Redo ( ctrl +Y)
Cut :- This Command is used to cut the selected Drawing.
Click on Edit
Click on cut (ctrl +x)
Copy :- This command is used to move or
make a duplicate from original drawing.
Click on Edit
Click on copy (ctrl + c)
Paste :- This command is used to paste
the cut or copied text or picture.
Click on Edit
Click on paste.
Clear :- This command is used to delete
the all drawing
Click on Edit
Click on Clear
Select All :- This command is used to
select all these drawing.
Click on Edit
Click on Select All (Ctrl + A)
Paste From :- This command is used to
insert different types of image in your drawing.
Click on edit
Click on paste from
VIEW MENU
Tool Box :- This command is used to show and hide tool box
from your screen.
Click on view
Click on tool box
Color Box :- This command is used to
show the and hide the color box from Screen.
Click on view
Click on color box
Status bar :- This command is used to
show and hide the Status box from your Screen.
Click on view
Click on status bar
Text tool bar :- This command is used
to show and hide the text from your screen.
Click on view
Click on text tool bar
Zoom :- This command is used to show
and hide the zoom size.
Click on view
Click on Zoom
Bit Map :- This command is used to show
and hide drawing full Screen.
IMAGE MENU
Fill rotate :- This command is used to
rotate your best or picture.
Click on view
Click on rotate
Invert Color :- This command is user to
fill the blank arc with any color.
Click on view
Click on invert color
Clear image :- This command is used
delete the all these drawing.
Click on image
Click on Clear image.
