LAN Response
Question 2. File sharing VS client server?
Network Client Server
The file sharing model

<< Continuousting to page 28>>

Network
Data
base

Appl
icati
Data
base

Data
base

Data
base
SQL
exec
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- With distributed processing system, user can access data, that is located among a

 Session: provides the control structure for communicaton
between applications, establishes, manages, and terminates
connections between cooperating applications.
 Presentation: provide independence to the application
processes from difference in data representation(syntax)
 Application: provide access to the OSI environment for
users and also propvides distributed information services
User oriented Application Users of transport
Presentation service
End to end Session
connection oriented Transport
Network
Point to point Data link Network service
link oriented Physical
Perspectives on the OSI architecture
Question 2. Protocols?
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Network access
protocol 1
Network access
protocol 2

Network 1 Network 2
Netwo
Communications using the TCP/ IP protocol architecture
NAP: Network Access Points
- IP is implemented in all of the end systems it keeps track of blocks of data to
ansure that all are dilivered veliably to the appropriate application
- For successful communication, every entity in the over all sys must have a unique
address, two level of addressing are needed
 Global Internet Address(for communication)
 Ports(for service)

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IP NAP
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Contents

BOOK I: Computer system fundamentals.
CHAPTER 1 INTRODUCTION TO COMPUTER 2
CHAPTER 2 MICROPROCESSOR 3
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CHAPTER 3 BATCH/ ONLINE AND REAL TIME PROCESSING SYSTEM 4
CHAPTER 4 PRINTERS AND TERMINALS 5
CHAPTER 5 DATA STORAGE MEDIA 7
CHAPTER 7 COMPUTER FILES 9
CHAPTER 8 DIRECT ACCESS FILE ORGANIZATION AND STRUCTURES 10

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