01 lcd slide handout 1
DESCRIPTION
comnetsTRANSCRIPT
Introduction to Computer Networking
Computer Networking and Data Communication
Rationale: Why Network Computers Using a PC on a Network Network Math
1 _________________________ ___________________________ ___________________________ ___________________________ ___________________________ ___________________________ ___________________________ ___________________________ ___________________________
*Property of STI J0065
Computer Networking and Data Communication
Internet
It refers to global computernetwork that linksinformation and people
2 __________________________ ___________________________ ___________________________ ___________________________ ___________________________ ___________________________ ___________________________ ___________________________ ___________________________
*Property of STI J0065
Computer Networking and Data Communication
Network
It refers to a system consisting of computers and devices connectedtogether via communications devices and media that allow users toelectronic communications, share resources or exchange files
3 _________________________ ___________________________ ___________________________ ___________________________ ___________________________ ___________________________ ___________________________ ___________________________ ___________________________
*Property of STI J0065
Computer Networking and Data Communication
Data Communications
It refers to the process oftransferring of digitalinformation from computersand components of computersystems via wired or wirelesstransmission medium whichinclude:
For Electricity For Light For Electromagnetic
Radiation
4 __________________________ ___________________________ ___________________________ ___________________________ ___________________________ ___________________________ ___________________________ ___________________________ ___________________________
*Property of STI J0065
Computer Networking and Data Communication
Telecommunications
It refers to any process that permits exchange of information overgreat distances, in the form of electromagnetic signals, throughelectromagnetic system
5 _________________________ ___________________________ ___________________________ ___________________________ ___________________________ ___________________________ ___________________________ ___________________________ ___________________________
*Property of STI J0065
Rationale: Why Network Computers
Advantages of Computer Network
6 __________________________ ___________________________ ___________________________ ___________________________ ___________________________ ___________________________ ___________________________ ___________________________ ___________________________
*Property of STI J0065
Rationale: Why Network Computers
Requirements for Internet connection
Physical Connection
Logical connection
Application that interpret the data and display the information
7 _________________________ ___________________________ ___________________________ ___________________________ ___________________________ ___________________________ ___________________________ ___________________________ ___________________________
*Property of STI J0065
Rationale: Why Network Computers
“Ping” command utility
Types of ping tests
ping 127.0.0.1
ping IP address of host computer
ping default-gateway IP address
ping remote destination IP address
8 __________________________ ___________________________ ___________________________ ___________________________ ___________________________ ___________________________ ___________________________ ___________________________ ___________________________
*Property of STI J0065
Rationale: Why Network Computers
“Ping” command utility
9 _________________________ ___________________________ ___________________________ ___________________________ ___________________________ ___________________________ ___________________________ ___________________________ ___________________________
*Property of STI J0065
Using a PC on a Network
PC Components
Motherboard
Central Processing Unit (CPU)
10 _________________________ ___________________________ ___________________________ ___________________________ ___________________________ ___________________________ ___________________________ ___________________________ ___________________________
*Property of STI J0065
Using a PC on a Network
PC Components Bus Random Access Memory
(RAM)
11 ________________________ ___________________________ ___________________________ ___________________________ ___________________________ ___________________________ ___________________________ ___________________________ ___________________________
*Property of STI J0065
Using a PC on a Network
PC Components
Read Only Memory (ROM)
Power supply
Hard Disk Drive
Operating system
12 _________________________ ___________________________ ___________________________ ___________________________ ___________________________ ___________________________ ___________________________ ___________________________ ___________________________
*Property of STI J0065
Using a PC on a Network
PC Components External Ports
Serial Port
Video port
Ethernet port
Universal Serial Bus (USB) Port
PS/2 port
13 ________________________ ___________________________ ___________________________ ___________________________ ___________________________ ___________________________ ___________________________ ___________________________ ___________________________
*Property of STI J0065
Using a PC on a Network
PC Components
Compact disc read – only memory (CD-ROM) Drive
Compact disc read – write memory (CD-RW) drive
Floppy Disk Drive
14 _________________________ ___________________________ ___________________________ ___________________________ ___________________________ ___________________________ ___________________________ ___________________________ ___________________________
*Property of STI J0065
Using a PC on a Network
An Idealized Computer: Information Flow
15 ________________________ ___________________________ ___________________________ ___________________________ ___________________________ ___________________________ ___________________________ ___________________________ ___________________________
*Property of STI J0065
Using a PC on a Network
Information that flows in an Idealized Computer
Boot instructions
Software applications
RAM and ROM
Application information
Saved information
Exported information
16 _________________________ ___________________________ ___________________________ ___________________________ ___________________________ ___________________________ ___________________________ ___________________________ ___________________________
*Property of STI J0065
Using a PC on a Network
Network Interface Card
It is an expansion board thatprovides networkcommunication capabilitiesto and from a computersystem
17 ________________________ ___________________________ ___________________________ ___________________________ ___________________________ ___________________________ ___________________________ ___________________________ ___________________________
*Property of STI J0065
Using a PC on a Network
Network Interface Card
It is plug into a motherboardor PCMCIA slot
It communicates to thenetwork via serial connectionwhile it communicates to thePC via a parallel connection,I/O address and IRQ
18 _________________________ ___________________________ ___________________________ ___________________________ ___________________________ ___________________________ ___________________________ ___________________________ ___________________________
*Property of STI J0065
Using a PC on a Network
Factors to be considered in choosing the NIC
Bus type
Network topology
Medium type
Transport speed
19 ________________________ ___________________________ ___________________________ ___________________________ ___________________________ ___________________________ ___________________________ ___________________________ ___________________________
*Property of STI J0065
Using a PC on a Network
Types of network administration software
Network Operating System (NOS)
20 _________________________ ___________________________ ___________________________ ___________________________ ___________________________ ___________________________ ___________________________ ___________________________ ___________________________
*Property of STI J0065
Using a PC on a Network
Types of network administration software
Network Operating System (NOS)
Peer – to – peer networking operating system
Cient/server networking operating system
21 ________________________ ___________________________ ___________________________ ___________________________ ___________________________ ___________________________ ___________________________ ___________________________ ___________________________
*Property of STI J0065
Using a PC on a Network
Types of network administration software
NOS Remote Services
Access to remote printers
Access to files on remote systems
Access to remote applications and resources
22 _________________________ ___________________________ ___________________________ ___________________________ ___________________________ ___________________________ ___________________________ ___________________________ ___________________________
*Property of STI J0065
Using a PC on a Network
Types of network administration software
NOS Remote Services
Routing services (including support for major networking protocols)
System and security monitoring
Basic network administration utilities
23 ________________________ ___________________________ ___________________________ ___________________________ ___________________________ ___________________________ ___________________________ ___________________________ ___________________________
*Property of STI J0065
Using a PC on a Network
Types of network administration software
Network monitoring software
Protocol analyzers
Sniffing software (a.k.a. packet sniffers)
Network management software
24 _________________________ ___________________________ ___________________________ ___________________________ ___________________________ ___________________________ ___________________________ ___________________________ ___________________________
*Property of STI J0065
Network Math
Decimal Number System
It is the number system that we are all familiar with
It is used by our forefathers basically for the simple reason that theystarted to learn to count with their ten fingers
25 ________________________ ___________________________ ___________________________ ___________________________ ___________________________ ___________________________ ___________________________ ___________________________ ___________________________
*Property of STI J0065
Network Math
Binary Number System
It is the number system thatis the basic foundation of anycomputer machine
A computer circuit representsthe 0 or the 1 electronicallyby the presence or absence ofan electrical charge
26 _________________________ ___________________________ ___________________________ ___________________________ ___________________________ ___________________________ ___________________________ ___________________________ ___________________________
*Property of STI J0065
Network Math
ASCII (American StandardCode for InformationInterchange)
It displays the binary numberrepresentation of manykeyboard and controlcharacters.
It is one of several character-encoding systems used inLANs.
27 ________________________ ___________________________ ___________________________ ___________________________ ___________________________ ___________________________ ___________________________ ___________________________ ___________________________
*Property of STI J0065
Network Math
Practice Exercises
Convert the following decimal numbers into binary
216
119
41
255
188
28 _________________________ ___________________________ ___________________________ ___________________________ ___________________________ ___________________________ ___________________________ ___________________________ ___________________________
*Property of STI J0065
Network Math
Practice Exercises
Convert the following binary numbers into decimal
01101011
10010110
11101001
00011011
01111111
29 ________________________ ___________________________ ___________________________ ___________________________ ___________________________ ___________________________ ___________________________ ___________________________ ___________________________