Thursday, July 30, 2009

Form 2: Exercise (Cyber Law)

1. State 3 reason why we need cyber law
2. State 4 cyber law act in Malaysia
3. Explain briefly 2 of the cyber law act in Malaysia

Thursday, July 16, 2009

Form 2: Cyber Law

What is Cyber Law?
Cyber law refers to any laws relating to protecting the Internet and other online communication technologies.

The Cyber Law Acts In Malaysia
The Malaysian Government has already passed several cyber laws to control and reduce Internet abuse.

These cyber laws include:
• Digital Signature Act 1997
• Computer Crimes Act 1997
• Telemedicine Act 1997
• Communications and Multimedia Act 1998

Beside these cyber laws, there are three other cyber laws being drafted.
• Private Data Protection Bill
• Electronic Government Activities Bill
• Electronic Transactions Bill


Digital Signature Act 1997


Digital Signature is an identity verification standard that uses encryption techniques to protect against e-mail forgery. The encrypted code consists of the user’s name and a hash of all the parts of the message.
By attaching the digital signature, one can ensure that nobody can eavesdrop, intercept or temper with transmitted data.



Computer Crimes Act 1997


Gives protection against the misuse of computers and computer criminal activities such as unauthorised use of programmes, illegal transmission of data or messages over computers, hacking and cracking of computer systems and networks.
Users can protect their rights to privacy and build trust in the computer system.
The government can have control at a certain level over cyberspace to reduce cyber crime activities.



Telemedicine Act 1997


The Telemedicine Act 1997 ensures that only qualified medical practitioners can practice telemedicine and that their patient's rights and interests are protected.
This act provides future development and delivery of healthcare in Malaysia.


Communications And Multimedia Act 1998


The implementation of Communication and Telecommunication Act 1998 ensures that information is secure, the network is reliable and affordable all over Malaysia.



Monday, July 13, 2009

Form 2 : Internet Communication

1. Various forms of communications on the Internet

• E-mailing
• Chatting
• Conferencing (audio and video)
• Net Meeting
• Newsgroup
• Forum


E-mail, short for electronic mail is the transmission of messages and files via a computer network.
A user utilises an email programme to create, send, receive, forward, store, print and delete email messages.
Some emails are web-based emails like Yahoo Mail, Gmail and Hotmail.


The Internet Relay Chat (IRC) is a system for chatting that involves a set of rules conventions and client/server software.
A chat is a real-time typed conversation that takes place on a computer. A chat room is a location on an Internet server that permits users to chat with others anywhere in the world.
Anyone in the chat room can participate in the conversation, it is usually specific to a particular topic.


Audio Conferencing (also known as ATC – Audio Tele-Conference)
When two or more people who are in different parts of the world can talk to each other at the same time through the Internet without the use of phone.

• Video Conferencing (also known as a video teleconference)
When two or more people who are in different parts of the world to talk and see each other on the screen using video capture used in businesses and meeting.

• Web Conferencing is used to conduct live, businesses, meetings and presentations over the Internet, where the people may be in different parts of the world.

NetMeeting is a web conferencing service where the user needs to have a high speed Internet connection for on-line collaboration.

Examples:
1. Chat Window
Type and send messages within a Chat Window

2. Whiteboard
Draw out a process or brainstorm ideas on a board.

3. File Transfer
Send or receive files within a meeting.

4. Application Sharing
Select an application on your computer and let others
explain how to use it.

5. Video Conferencing
Hold a video conference over the internet.

6. Audio conferencing
Hold an audio conversation over the internet without the use of phones

Newsgroup
It is usually a discussion group about a particular subject consisting of notes, written to a central Internet site and redistributed through Usenet. Newsgroups are similar to discussion forums on the World Wide Web.

Forum
An Internet forum is a web application for holding discussions and posting user generated content. Internet forums are also commonly referred to as web forums, message boards, discussion boards, (electronic) discussion groups, discussion forums, bulletin boards, fora (the Latin plural) or simply forums.

2. Peripherals used for communications

• Web camera

• Microphone

• Earphone

Sunday, July 5, 2009

Form 4: Exercise ( NETWORK )

1. Define computer network
2. Define communication
3. State the importance of computer network and communication

4. Define types of computer networks:

  • LAN
  • MAN
  • WAN

5. Differentiate between the three type of networks

6. Define two types of network architecture:

  • Client/server
  • peer-to-peer

7. State three type of network topology

8. Define the each network topology

9. State the differentiate between three type of network topology