Session 40
Date:3.8.2010
Activities:
- Discussed about Network Operating system
A network operating system (NOS) is a software program that controls other software and hardware that runs on a network. It also allows multiple computers, also known as network computers, to communicate with one main computer and each other, so as to share resources, run applications, and send messages, among other things. A computer network can consist of a wireless network, local area network (LAN), a wide area network (WAN), or even two or three computer networks. The heart of any of these networks, however, is the network operating system.
Wednesday, August 4, 2010
Session 38
Session 38
Date:27.7.2010
Activities:
- Mr Zainuddin attended Kepeperiksaan SPM meeting
So,we did our own work
Date:27.7.2010
Activities:
- Mr Zainuddin attended Kepeperiksaan SPM meeting
So,we did our own work
Session 37
Session 37
Date:22.7.2010
Activities:
- Discussed about needed in computer network communication.
• Network Interface Card (NIC)
• Wireless Network Interface Card
• Modem (internal and external)
• Hub
• Router
• Wireless Access Point
A network interface card (NIC) is a communication device that enables a computer or device to access a wired network (via cable)
• Wireless Network Interface Card
A wireless network interface card is a communication device that enables a computer or device to access a wireless network (via radiowave)
• Modem (internal and external)
Modem
A modem (a modulator/demodulator) lets you connect your computer to a standard telephone line so you can transmit and receive electronically transmitted data. It is the key that unlocks the world of the Internet and its World Wide Web, commercial online services, electronic mail (E-mail), and bulletin board systems (BBSes).
External modem.
This is the simplest type of modem to install because you don't have to open the computer. External modems have their own power supply and connect with a cable to a computer's serial port. The telephone line plugs into a socket on the rear panel of the modem.
Internal Modem
Most internal modems come installed in the computer you buy. Internal modems are more directly integrated into the computer system and, therefore, do not need any special attention. Internal modems are activated when you run a communications program and are turned off when you exit the program. This convenience is especially useful for novice users.
Internal modems usually cost less than external modems, but the price difference is usually small. The major disadvantage with internal modems is their location: inside the computer. When you want to replace an internal modem you have to go inside the computer case to make the switch.
• Hub
Hub
A hub is a communication device that is used for connecting wired computers or devices on a Local Area Network (LAN).A hub provides a common connection wireless computers or devices on a Local Area Network (LAN).
• Router
A device that forwards data packets along networks. A router is connected to at least two networks, commonly two LANs or WANs or a LAN and its ISP’s network. Routers are located at gateways, the places where two or more networks connect. Routers use headers and forwarding tables to determine the best path for forwarding the packets, and they use protocols such as ICMP to communicate with each other and configure the best route between any two hosts.Very little filtering of data is done through routers.
• Wireless Access Point
Wireless access points (APs or WAPs) are specially configured nodes on wireless local area networks (WLANs). Access points act as a central transmitter and receiver of WLAN radio signals.
Date:22.7.2010
Activities:
- Discussed about needed in computer network communication.
• Network Interface Card (NIC)
• Wireless Network Interface Card
• Modem (internal and external)
• Hub
• Router
• Wireless Access Point
A network interface card (NIC) is a communication device that enables a computer or device to access a wired network (via cable)
• Wireless Network Interface Card
A wireless network interface card is a communication device that enables a computer or device to access a wireless network (via radiowave)
• Modem (internal and external)
Modem
A modem (a modulator/demodulator) lets you connect your computer to a standard telephone line so you can transmit and receive electronically transmitted data. It is the key that unlocks the world of the Internet and its World Wide Web, commercial online services, electronic mail (E-mail), and bulletin board systems (BBSes).
External modem.
This is the simplest type of modem to install because you don't have to open the computer. External modems have their own power supply and connect with a cable to a computer's serial port. The telephone line plugs into a socket on the rear panel of the modem.
Internal Modem
Most internal modems come installed in the computer you buy. Internal modems are more directly integrated into the computer system and, therefore, do not need any special attention. Internal modems are activated when you run a communications program and are turned off when you exit the program. This convenience is especially useful for novice users.
Internal modems usually cost less than external modems, but the price difference is usually small. The major disadvantage with internal modems is their location: inside the computer. When you want to replace an internal modem you have to go inside the computer case to make the switch.
• Hub
Hub
A hub is a communication device that is used for connecting wired computers or devices on a Local Area Network (LAN).A hub provides a common connection wireless computers or devices on a Local Area Network (LAN).
• Router
A device that forwards data packets along networks. A router is connected to at least two networks, commonly two LANs or WANs or a LAN and its ISP’s network. Routers are located at gateways, the places where two or more networks connect. Routers use headers and forwarding tables to determine the best path for forwarding the packets, and they use protocols such as ICMP to communicate with each other and configure the best route between any two hosts.Very little filtering of data is done through routers.
• Wireless Access Point
Wireless access points (APs or WAPs) are specially configured nodes on wireless local area networks (WLANs). Access points act as a central transmitter and receiver of WLAN radio signals.
Tuesday, August 3, 2010
Session 36
Session 36
Date:20.7.2010
Activities:
- Discussed about Protocols
Protocol/Internet Protocol) is the basic communication language or protocol of the Internet. It can also be used as a communications protocol in a private network (either an intranet or an extranet). When you are set up with direct access to the Internet, your computer is provided with a copy of the TCP/IP program just as every other computer that you may send messages to or get information from also has a copy of TCP/IP.
Date:20.7.2010
Activities:
- Discussed about Protocols
Protocol/Internet Protocol) is the basic communication language or protocol of the Internet. It can also be used as a communications protocol in a private network (either an intranet or an extranet). When you are set up with direct access to the Internet, your computer is provided with a copy of the TCP/IP program just as every other computer that you may send messages to or get information from also has a copy of TCP/IP.
Session 35
Session 35
Date:15.7.2010
Activities:
- Teacher was still at the launching of Microsoft Kodu Game Lab software
So,we did our own work....again
Date:15.7.2010
Activities:
- Teacher was still at the launching of Microsoft Kodu Game Lab software
So,we did our own work....again
Session 34
Session 34
Date:13.7.2010
Activities:
- Mr Zainnudin was still at the launching of Microsoft Kodu Game Lab software
So,we did our own work again
I:-
a)Updated my blog
b)Went youtube for movie trailers
c)Discussed with my friends about the learning outcomes
Date:13.7.2010
Activities:
- Mr Zainnudin was still at the launching of Microsoft Kodu Game Lab software
So,we did our own work again
I:-
a)Updated my blog
b)Went youtube for movie trailers
c)Discussed with my friends about the learning outcomes
Session 33
Session 33
Date:8.7.2010
Activities:
- Mr Zainuddin attended launching of Microsoft Game Lab software
So,each of us did our own work.
I:-
a)Updated my blog
b)When youtube to view latest pc games
c)Discussed with my friend about the learning outcomes
Date:8.7.2010
Activities:
- Mr Zainuddin attended launching of Microsoft Game Lab software
So,each of us did our own work.
I:-
a)Updated my blog
b)When youtube to view latest pc games
c)Discussed with my friend about the learning outcomes
Session 32
Session 32
Date:6.7.2010
Activities:
- Discussed about three main types of network topology
• bus
• ring
• star
Bus topology
Bus networks (not to be confused with the system bus of a computer) use a common
backbone to connect all devices. A single cable, the backbone functions as a shared
communication medium that devices attach or tap into with an interface connector. A
device wanting to communicate with another device on the network sends a broadcast
message onto the wire that all other devices see, but only the intended recipient actually
accepts and processes the message. However, bus networks work best with a limited
number of devices. If more than a few dozen computers are added to a network bus,
performance problems will likely result. In addition, if the backbone cable fails, the entire
network effectively becomes unusable.
Ring Topology
In a ring network, every device has exactly two neighbors for communication purposes.
All messages travel through a ring in the same direction (either "clockwise" or
"counterclockwise"). A failure in any cable or device breaks the loop and can take down
the entire network.
Star Topology
Many home networks use the star topology. A star network features a central connection point called a "hub" that may be a hub, switch or router. Devices typically connect to the hub with Unshielded Twisted Pair (UTP) Ethernet.
Compared to the bus topology, a star network generally requires more cable, but a failure in any star network cable will only take down one computer's network access and not the entire LAN. (If the hub fails, however, the entire network also fails.)
Date:6.7.2010
Activities:
- Discussed about three main types of network topology
• bus
• ring
• star
Bus topology
Bus networks (not to be confused with the system bus of a computer) use a common
backbone to connect all devices. A single cable, the backbone functions as a shared
communication medium that devices attach or tap into with an interface connector. A
device wanting to communicate with another device on the network sends a broadcast
message onto the wire that all other devices see, but only the intended recipient actually
accepts and processes the message. However, bus networks work best with a limited
number of devices. If more than a few dozen computers are added to a network bus,
performance problems will likely result. In addition, if the backbone cable fails, the entire
network effectively becomes unusable.
Ring Topology
In a ring network, every device has exactly two neighbors for communication purposes.
All messages travel through a ring in the same direction (either "clockwise" or
"counterclockwise"). A failure in any cable or device breaks the loop and can take down
the entire network.
Star Topology
Many home networks use the star topology. A star network features a central connection point called a "hub" that may be a hub, switch or router. Devices typically connect to the hub with Unshielded Twisted Pair (UTP) Ethernet.
Compared to the bus topology, a star network generally requires more cable, but a failure in any star network cable will only take down one computer's network access and not the entire LAN. (If the hub fails, however, the entire network also fails.)
Session 31
Session 31
Date:1.7.2010
Activities:
- Discussed about types of networks
* LAN - Local Area Network
* WLAN - Wireless Local Area Network
* WAN - Wide Area Network
* MAN - Metropolitan Area Network
* SAN - Storage Area Network, System Area Network, Server Area Network, or sometimes Small Area Network
* CAN - Campus Area Network, Controller Area Network, or sometimes Cluster Area Network
* PAN - Personal Area Network
* DAN - Desk Area Network
LAN and WAN were the original categories of area networks, while the others have gradually emerged over many years of technology evolution.
* Wireless Local Area Network - a LAN based on WiFi wireless network technology
* Metropolitan Area Network - a network spanning a physical area larger than a LAN but smaller than a WAN, such as a city. A MAN is typically owned an operated by a single entity such as a government body or large corporation.
* Campus Area Network - a network spanning multiple LANs but smaller than a MAN, such as on a university or local business campus.
* Storage Area Network - connects servers to data storage devices through a technology like Fibre Channel.
* System Area Network - links high-performance computers with high-speed connections in a cluster configuration. Also known as Cluster Area Network.
Session 30
Session 30
Date:30.6.2010
Activities:
- Assignments were given
(Send Mr Zainuddin lesson plans 10-14)
- Discussed about Basic Concepts of Computer Networks and Communications
A computer network is a collection of computers and devices connected together via communications devices and transmission media. For examples it may connect computers, printers and scanners.
Communication describes a process in which two or more computer devices transfer data, instructions and information.
Importance of computer network
i) Sharing of devices such as printer and scanner.
ii) Sharing of program/software.
iii) Sharing of files.
iv) Sharing of data.
v) Sharing of information.
vi) Sharing of single high-speed internet connection.
vii) Can access server centered database.
viii) Better communication using internet services such as e-mail, mailing list and Internet Relay Chat (IRC).
Date:30.6.2010
Activities:
- Assignments were given
(Send Mr Zainuddin lesson plans 10-14)
- Discussed about Basic Concepts of Computer Networks and Communications
A computer network is a collection of computers and devices connected together via communications devices and transmission media. For examples it may connect computers, printers and scanners.
Communication describes a process in which two or more computer devices transfer data, instructions and information.
Importance of computer network
i) Sharing of devices such as printer and scanner.
ii) Sharing of program/software.
iii) Sharing of files.
iv) Sharing of data.
v) Sharing of information.
vi) Sharing of single high-speed internet connection.
vii) Can access server centered database.
viii) Better communication using internet services such as e-mail, mailing list and Internet Relay Chat (IRC).
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