This document provides an overview of computer basics including definitions, components, and operations. It defines a computer as an electronic device that takes in data from the user, processes and manipulates the data, and outputs the processed data. It also discusses input devices like the mouse and keyboard. The mouse section describes different mouse types including optical, laser, wireless, and ball mice. It explains how keyboards have letter, number, and function keys and connects via USB or PS/2 ports. Basic math operations and BODMAS rules for calculations are also covered.

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Inside the CB you will learn about the topics prescribed below

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INDEX
UNIT NO UNIT NAME SLIDES NUMBERS
1 COMPUTE 4 - 5
1.1 BODMAS RULE 6 - 7
2 COMPUTER FULL FORM 8
3 COMPUTER DEFENIATION 9
4 MOUSE 10 - 19
5 KEYBOARD 20 - 23
6 USER 24
7 WHAT TO DO IS YOURS 25

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Before going Inside the CB topics a important note
***IMPORTANT NOTE***
COMPUTER IS A CACULATING DEVICE IT IS THE FIRST STAGE OF THE
COMPUTER
THE VERY NEXT STAGE OF THE COMPUTER IS
ELECTRONIC CALCULATOR
LATER THEY DEVELOPED NUMBER OF COMPONETS WITH THE HELP
OF ELECTRONICS AND THEY GIVEN THE DEFENIATION AS
COMPUTERIS AN ELECTRONIC DEVICE

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COMPUTE MEANS “CALCULATION” WE HAVE MANY CALCULATION
OPREATIONS SOME CALCULATION OPREATIONS ARE GIVEN BELOW
SEE THE TABLE FOR THE COMPUTER OPREATION SYMBOLS CHANGE

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BASIC/COMPUTER MATHEMETICAL SYMBOLS
BASIC MATHEMATICAL SYMBOLS COMPUTER MATHEMATICAL SYMBOLS

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THIS RULE SAYS HOW THE COMPUTER CALCULATE AND WEWILL
KNOW THE FULL FORM OF BODMAS
1ST STEP  BRACKETS OPENING
2ND STEP  DIVISION
3RD STEP  MULTIPLICATION
4TH STEP  ADDITION
5TH STEP  SUBTRACTION
THIS THE WAY COMPUTER START PROCESSING WHEN THE
PROBLEM WAS GIVEN

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* COMPUETR IS AN ELECTRONIC DEVICE
* IT TAKES INPUT FROM THE USER
* IT PROCESS ,MANIPULATE AND EDIT THE DATA
* IT REPRODUCES THE PROCESSED DATA AS A OUTPUT

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IN THIS CHAPTER YOU WILL KNOW ABOUT THE
MOUSE AND IT CONNECTIONS IN QUESTION AND
ANSWER METHOD
WHAT IS MOUSE ?
MOUSE IS A GUI POINTING AND INPUT DEVICE
HOW THE POINTER LOOK LIKE ?

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HOW THE MOUSE LOOKS ?
THERE ARE TWO PARTS OF THE MOUSE THEY ARE
A)BUTTONS
1)LEFT & 2) RIGHT
B)SCROLLER IS IN CENTER
WHAT ARE THE PARTS OF THE MOUSE AND WHAT ARE
THEY?

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HOW THE MOUSE IS CONNETCED?
MOUSE CAN BE CONNETCED IN TWO WAYS
1) ANALOG
2) DIGITAL
IN THE ANLOG WAY THE MOUSE HAVE TWO
CONNECTIONS THEY ARE
1) SERIAL PORT COENNECTION 2(PS2)
2) UNIVERSAL SERIAL BUS(USB)

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HOW THE PS2 / USB COENNECTION LOOKS ?
HOW THE PS2 / USB PORT COENNECTION LOOKS ?

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HOW MANY TYPES OF MOUSES ARE THERE ?

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A WIRLESS MOUSE IS AN CONNECTION OF DIGITAL THERE
IS NO WIRE CONNECTED TO MOUSE IT WORK WITH THE
HELP OF USB CONNECTION (DONGEL) WHEN IT IS
CONNECTED THE MOUSE WORKS IF IT IS NOT
CONNECTED THE MOUSE WILL NOT WORK

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these mice use laser beams to track movement and can be considered
too be more accurate and precise than optical or trackball mice. Where
an optical mousses LED would shine a bright red (or other colors), laser
mouse have no shine and are usually invisible to the naked eye. The
laser beam can also reflect on practically any surface, meaning there’s
no need for mouse pads.

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A mouse that uses light to detect movement. because their sealed They
work by emitting light from an LED or laser, and a CMOS sensor detects
the light reflections as the mouse is moved.

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A trackball is a pointing device consisting of a ball held by a socket
containing sensors to detect a rotation of the ball about two axes—like
an upside-down mouse with an exposed protruding ball. The user rolls
the ball with the thumb, fingers, or the palm of the hand to move a
pointer.

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A MOUSE WHICH IS HAVING THE MECHANISIM WORKING WITH A BALL
IS CALLED BALL MOUSE THIS MOUSE SHOULD HAVE MOUSEPAD IN
THIS MOUSE THE POINTER WILL DEPEND OP ON THE MOMENT OF THE
BALL

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IN THIS UNIT YOU WILL KNOW ABOUT THE CONNECTIONS OF
KEYBOARD AND TYPES OF KEYBOARD IN THE MODE OF
CONVERSASTION BETWEEN TWO PEOPLE NAMED KIRAN AND KASI
KASI : HI KIRAN HOW ARE YOU? LONG TIME NO SEE WHY?
KIRAN: FINE WHAT ABOUT YOU?
KASI : FINE, I HEAR A WORD CALLED KEYBOARD, WHAT IS A KEYBOARD?
KIRAN: FINE GOOD QUESTION KASI.I WILL EXPLAIN IT TO YOU, HAVE YOU
SEEN A TYPEWRITER ?
KASI : YA
KIRAN: KEYBOARD BEFORE STAG IS TYPEWRITER, THEY DEVELOPED THE
TYPEWRITER WITH THE HELP OF ELECTRONICS AND NAMED AS
KEYBOARD

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KIRAN: HAVE YOU SEEN A KEYBOARD?
KASI : NO
KIRAN: YOU WANT TO SEE THE TYPEWRITER AND KEYBOARD?
KASI :YES,BUT WHERE IN MY FRIENDS HOME, WHATIS HIS NAME AND
WHERE IS HIS HOUSE?
KIRAN: WALKBLE DISTANCE TO HIS HOME FORM HERE AND HIS NAME IS
ASHWAN OK.
KASI : FINE
A FEW MINIUTES LATER KASI/KIRAN WAS IN THE HOUSE OF ASHWAN AND
THEY INTRODUCED THEM SELF
KIRAN: KASI COME HERE NOW SEE THIS THINGS ON THE RIGHT YOU SEE
TYPEWRITER AND ON THE LEFT YOU SEE KEYBOARD FINE
KASI : FINE

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NOW YOU CAN SEE THE TYPEWRITER ON THE RIGHT SIDE AND KEYBOARD ON
THE LEFT SIDE
KIRAN: NOW LET’S MOVE TO KEYBOARD ,KEYBOARD IS INPUT DEVICE
WHICH TAKES DATA FROM THE USER TROUGH THE KEYBOARD HOW
THE MOUSE CONNECTIONS ARE PROVIDED SAME AS THE KEY
BOARD PS2/USB AND WIRELESS KEY BOARD IS ALSO PRSENT ON
SEEING THE KEY BOARD WE SEE THE TING AS FOLLOW

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KIRAN: 1) CHARACERTS A-Z (26)
2) FUNCTIONAL KEYS F1-F12 (12)
3) NUMERICAL KEYS 0-9 (10)
4) ARROW KEYS - (4)
5) SPECIAL KEYS (ALT+CTRL) (2)
THERE ARE TWO TYPES OF KEY BOARD
• STRANDARD KEY BOARD (101/102 KEYS)
• NON-STRANDARD KEYBOARD
KASI : OK THANKS KIRAN BYE………
KIRAN : BYE TAKE CARE ………

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USER MEANS PEOPLE THIS USER HAS DIVIED IN TO TWO TYPES
PROFESSIONAL USEREND USER
A USER HAVING A BASIC/INTERMEDIATE SKILL IS KNOW AS AN
A USER HAVING A BASIC/INTERMEDIA/EXCELLENT/SUPERB SKILL IS KNOW AS
AN

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ASK YOU SIR OR FRIEND OR PARENTS OR SRUF IN INTERNET ?
WHAT IS 3D MOUSE AND WHERE IT IS USED ?
WHAT IS AIR MOUSE ?
DIFFERNCE BETWEEN LASERMOUSE AND OPTICAL MOUSE ?
HOW MANY PIN SLOTS ARE AVILABLE FOR PS PORT ?
WHAT IS DATA ?
WHAT IS FULL FORM BASIC ?
AFTER COMPLETLY STUDYING THIS CHAPATERS CREATE POINTS TO REMEMBER
TO YOUR OWN

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