INTERNET . :)

INTERNET

- The Internet is a globalnetwork connecting millions of computers. More than 100 countries are linked into exchanges ofdata, news and opinions.
-  According toInternet World Stats, as of December 31, 2011 there was an estimated 2,267,233,742 Internet users worldwide. This represents 32.7% of the world's population.

- Unlike online services, which are centrally controlled, the Internet is decentralized by design. Each Internet computer, called a host, is independent. Its operators can choose which Internet services to use and which local services to make available to the global Internet community. Remarkably, this anarchy by design works exceedingly well. 
- There are a variety of ways toaccess the Internet. Most online services offer access to some Internet services. It is also possible to gain access through a commercial Internet Service Provider (ISP).

Microsoft WORD, EXCEL & POWERPOINT :)

assalamualaikum .

Hey ! see agaiun. this week my beloved lecturer had teach about microsoft processing skills that include variety of programmes such as mic words, mic excel and powerpoint.

MICROSOFT OFFICE PROGRAMME.

Microsoft words

- Using Word, user easily can change the shape, size, color of text, add tables, shading, borders, pictures, charts and Web address in documents.

- Word is full-featured word processing program that allows user to create many types of personal and business documents including flyers, memos, resumes, reports, mailing labels and etc.

Microsoft Excel

- 

Microsoft PowerPoint

- can use also for video . as a presentations . :)

thats all from me . bye :)

Network

Assalamualaikum,

This week I would share about what I've have been learn about computer network. It is simply a group of interconnected computers. Two or more computers are connected via hardware or software, and able to communicate with each other.

Network computer is a major components of a computer network, for example;

1. Communication
2. Media
3. Interconnecting Devices
4. Computers
5. Networking

The data transmission characteristics is :

• Bandwidth (rate of transmission)
• Analog or Digital (type of signal)
• Serial or Parallel (order of bits)

Communication Channel

-To send data through the channel requires some type of transmission media, which may be either physical or wireless.

Network Medium

- Computers share access to common network medium that carries signals from one computer to another.

- Medium may be physical cable, such as twisted pair, coaxial, or fiber-optic.

- Medium may also be wireless.

PHYSICAL MEDIA

WIRELESS MEDIA

•       Microwave system – transmits data via high-frequency radio signals through the atmosphere

•       Satellite system – receive transmitted signals, amplify them, and then transmit the signals to the appropriate locations

•       Cellular technology – uses antennae resembling telephone towers to pick up radio signals within a specific area (cell)

•       Infrared technology – transmits data as infrared light waves from one device to another, providing wireless links between PCs and peripherals

3 TYPES OF NETWORK :)

•   Network in small geographical Area (Room, Building or a Campus) is called LAN (Local Area Network)

•   Network in a City is call MAN (Metropolitan Area Network)

•   Network spread geographically (Country or across Globe) is called WAN (Wide Area Network)

Peer-to-Peer Networking Advantages

•       Easy to install and configure

•       No dedicated server

•       Users control own shared resources

•       Inexpensive to purchase and operate

•       No additional equipment or software

•       No dedicated administrators

•      Works best with 10 or fewer users

Peer-to-Peer Networking Disadvantages

•       Security applies to single resource at a time

•       Users may have many different passwords

•       Must back up each machine individually

•       Machine sharing resources may suffers reduced performance

•       No centralized organization scheme to locate or control access to data

•       Does not usually work well with more than

10 users

that s all that i can share in network topic . theres a lot information to complete this topic, but just this all i can share . see again . :)