CHAPTER 3 : NUMBER OPERATION

ARITHMETIC FOR COMPUTER

OPERATION OF INTEGER
.Addition and Subtraction
.Multiplication and Division
.Dealing with overflow

FLOATING - POINT REAL NUMBER
.Represent and operations

INTEGER ADDITION
                   
BINARY               
HEXADECIMAL


INTEGER SUBTRACTION

BINARY

 

0		borrows
0  0  1 10  0  1  0  1	=	37(base 10)
- 0  0  0  1  0  0  0  1	=	17(base 10)
0  0  0  1  0  1  0  0	=	20(base 10)

HEXADECIMAL


                               
INTEGER MULTIPLICATION


BINARY

	0  0  1  0  1  0  0  1	=	41(base 10)
	× 0  0  0  0  0  1  1  0	=	6(base 10)
	0  0  0  0  0  0  0  0
	0  0  1  0  1  0  0  1
	0  0  1  0  1  0  0  1
	0  0  1  1  1  1  0  1  1  0	=	246(base 10)

HEXADECIMAL
                               


INTEGER DIVISION

                      

BINARY

                                  

							1	1	1	=	7(base 10)
1  1  0	)	0	0	1	10	1	0	1	0	=	42(base 10)
				-	1	1	0			=	6(base 10)
						1					borrows
					1	0	10	1
					-	1	1	0
							1	1	0
						-	1	1	0
									0

  HEXADECIMAL

CHAPTER 1 : ASSEMBLY PC, FORMATTING AND DISK PARTITION


DEFINITION OF A COMPUTER

- COMPUTER is An electronic device that can accept data (input), process the input to useful information (process), according to a set of instructions, store the instructions and the results of processing (storage), and produce the information (output).


COMPUTER STRUCTURE :-


                      

STRUCTURE - THE CPU 

* Meanwhile, the CPU itself consists of several components such as:
o registers
– provides storage internal to the CPU
o arithmetic and logic unit (ALU) 
– perform data processing function
o control unit
 – control the operation of CPU
o internal CPU interconnection
 – provides communication among ALU, registers and control unit :-

                                        

                                     
                     

TYPE OF COMPUTER :-

o - Micro Computer

                                         

o - Main Frame

                                          

o - Super Computer





LEVEL OF PROGRAM CODE

*High Level Language

-Level of abstraction closer to problem domain
-Provides for productivity and portability

*Assembly Language
-Textual representation of instruction

*Hardware Representation
-Binary digits (bits)
-Encode instructions and data


ANATOMY OF COMPUTER

INPUT DEVICE

           

OUTPUT DEVICE

                                 

COMPONENT INSIDE OF COMPUTER


          


MOTHERBOARD LABELS AND COMPUTER PORTS