Assalamualaikum . hai apa khabar korang ? sihat ke tidak ? hiihihi . 27 Disember 2017 baru-baru ini keputusan peperiksaan PSPM 1 telah diedarkan . Ya Allah , syukur tidak terhingga kepada-Mu Ya Allah atas rezeki yang kau berikan kepadaku ini . Tak sangka juga sebenarnya dapat pointer yang agak tinggi . Walaupun bukan 4.0 , tapi saya bersyukur sangat-sangat dengan result saya sebab itu hasil buah usaha saya selama berada disini . Nak tahu ke saya dapat pointer berapa ? Okey la , saya dapat 3.50 . Alhamdulillah bersyukur sekali lagi .

 وَمَنْ لاَيَشْكُرِ النَّاسَ لاَيَشْكُرِ اللهَ

“barang siapa yang tidak bersyukur kepada manusia, berarti ia tidak bersyukur kepada Allah”. (H.R Ahmad dan Baihaqi) 

عن ابى عبد الله عليه السلام قال : قال رسول الله صلى الله عليه وسلم : الطاعم الشكر له من الأجر كأجر الصائم المحتسب. والمعافى الشكر له من الأجر كأجر المبتلى الصبر. والمعطى الشّكر له من الأجر كأجر المحروم القانعز

“Dari Abu Abdillah a.s, beliau berkata, “bahwa Rasulullah saw. bersabda, “orang yang menyantap makanan dengan rasa syukur, maka dia diberi pahala, seperti orang yang berpuasa menjaga dirinya. Orang yang sehat yang mensyukuri kesehatannya, maka dia diberi pahala, orang yang menanggung penderitaan (jasmani)-nya dengan sabar. Dan orang yang memberikan dengan rasa syukur, maka dia mendapat pahala yang sama dengan orang yang menanggung kerugian dari menjaga diri”. (H.R Abu Hurairah dan al-Qudha’i)

Okey , seperti biasa minggu -3 ini saya melaksanakan assignment yang diberikan oleh pensyarah . Mari kita belajar , semoga menjadi rujukan buat semua . 

WHAT IS NETWORK architecture?

• The configuration of computers, devices and media on a network.

Categories of Network Architecture :	Description :
Peer-to-peer Network	Diagram of Peer-to-peer Network  - A simple, inexpensive network that typically connects fewer  than 10 computers.  - Each computer, called a peer, has equal responsibilities and capabilities. - Sharing hardware (such as a printer), data or information with other computers on the peer-to-peer network. - Each computer stores files on its own storage devices. Thus, each computer on the network contains both the server operating system and application software. - All computers on the network share any peripheral device(s) attached to any computer. - Peer-to-peer networks are ideal for very small businesses and home users. - Some operating systems, such as Windows, include a peer to-peer networking utility that allows users to set up a peer-to-peer network. - Peers are both suppliers and consumers of resources.
Client/Server Network	Diagram of Client/Server Network  •      One or more computers act as a server, and the other computers on the network request services from the server. •      Server, sometimes called a host computer, controls access to the hardware, software, and other resources on the network and provides a centralized storage area for programs, data and information. •      The clients are other computers and mobile devices on the network that rely on the server for its resources. •      For example, a server might store a database of customers. Clients on the network (company employees) access the customer database on the server. •      Client/server architecture works when the client computer sends a resource or process request to the server over the network connection, which is then processed and delivered to the client. •      A server can manage several clients simultaneously, whereas one client can be connected to several servers at a time, each providing a different set of services.  •      The Internet is also based on client/server architecture where the Web server serves many simultaneous users with Web page and or website data.

Types of Comparison :	CLIENT-SERVER Network	PEER-TO-PEER Network
Basic	There is a specific server and specific clients connected to the server.	Clients and server are not distinguished; each node act as client and server.
Service	The client request for service and server respond with the service.	Each node can request for services and can also provide the services.
Focus	Sharing the information.	Connectivity.
Data	The data is stored in a centralized server.	Each peer has its own data.
Server	When several clients request for the services simultaneously, a server can get bottlenecked.	As the services are provided by several servers distributed in the peer-to-peer system, a server in not bottlenecked.
Expense	The client-server are expensive to implement.	Peer-to-peer are less expensive to implement.
Stability	Client-Server is more stable and scalable.	Peer-toPeer suffers if the number of peers increases in the system

My Day & About Computer Network

Assalamualaikum , alhamdulillah masih diberikan umur yang panjang dan bernafas sehingga saat ini untuk saya menulis sambungan blog . 

 Hari ini kakak nak cerita sikit , sudah seminggu tahan sakit gigi . Arghh , teramat-amat sakit sampai tak boleh nak belajar dan tido . Kawan-kawan buat lawak pun tak boleh nak ketawa , tapi bila dah tak tahan sangat ketawa jugak akhirnya . OK now , berdenyut-denyut sampai seluruh muka dan kepala , huauhuaaa kakak mampu bertahan saja rasa sakit ini . Nak menangiskan rasa macam budak-budak pulak . maklumlah kita nie kan dah besar , tunjuklah sikit kematangan dan kakak sado . Hihihi . 

By the way , hari ini kakak boleh balik , yeayy happy sangat . Bas pukul 9.00 malam sorang diri pulak tu , haishhh takut juga sebenarnya . Mama bukan main lagi berleter sebab takut anak dia terjadi apa-apa . InshaAllah tak ada apa-apa . Doakan ye . Pasal sakit gigi ni pun tolong doa ya . 

Kakak kena tabah duduk sini . Bila difikirkan balik macam-macam ujian Allah turunkan sepanjang duduk dekat sini . Kakak tahu ujian itu lebih mematangkan kita dan menjadikan kita ini lebih kuat . I'm Right? 

Jom kita belajar sikit harini :)

What is a Network?

A network consists of two or more computers that are linked in order to share resources (such as printers and CDs), exchange files, or allow electronic communications. The computers on a network may be linked through cables, telephone lines, radio waves, satellites, or infrared light beams.

What Is Communication Device?

A communications device is any type of hardware capable of tansmitting data , instructions and information between a sending device and a receiving device .

Type Of Communication Device .

•Dial-up Modem

•Digital modem(ISDN, DSL and Cable Modem)

•Wireless modem

•Network card

•Wireless access point

•Router

•Switch

•Hub

Dial-up Modem 

	A communications device that can convert digital signals to analog signals and analog signals to digital signals, so that data can travel along an analog telephone line.  Digital Modem (ISDN,DSL, Cable Modem)
	A communications device that sends and receives data and information to and from a digital line.      Wireless Modem
	Some mobile users have a wireless modem that uses the cell phone network to connect to the Internet wirelessly from a notebook computer, a smart phone, or other mobile device.

WHAT IS transmission media?

Materials or substances capable of carrying one or more signals in a communications channel.

Two types of transmission media:

1.Physical transmission media/Guided media/Wired

•Twisted-Pair Cable, Coaxial Cable, Fiber-Optic Cable.

•

2.Wireless transmission media/Unguided media/ Wireless

•Infrared, Broadcast Radio, Cellular Radio, Microwave, communications satellite.

Advantages of Network : 

• Easy Communication and Speed
• People can communicate efficiently by using a network such as emails, instant messaging, telephony, video conferencing, chat rooms, etc.
• Ability to Share Files, Data and Information

o   It can benefit large organizations to maintain their data in an organized manner and facilitate access for desired people

• Sharing Hardware

o   By sharing hardware it can reduce the cost of purchasing hardware because there’s              no need to have individual  hardware such as printer for each and every computer in the company.

·         Sharing Software

• It can reduce the cost of buying software by networking their computers because networkable versions of software are available.
• Security

o   Sensitive files and programs on a network can be password protected and can only be accessed by the authorized users.

• Speed

o   Sharing and transferring files within networks is very rapid, depending on the type of network.

o   This will save time while maintaining the integrity of files.

               Disadvantages of Network :

• Breakdowns and Possible Loss of Resources

o   Breakdown of the whole network due to an issue of the server may lead to loss of important data of the server.

• ·         Expensive to Build

o   Building a network  for large scale organizations are very pricey especially to buy and replace cables and other hardware .

• Security Threats

o   There are hackers who are trying to steal valuable data of large companies for their own benefit.

• ·         Bandwidth Issues

o   Heavy users who consume a lot more bandwidth will affect other users.

My Story Is Here

Sesi kenal-mengenali Blogger.

Perlu ke saya buat blog ini ? perlu la sebab ini tugas saya yang diberikan oleh pensyarah komputer sains saya . Oleh itu , saya berharap segala urusan saya dipermudahkan sepanjang menyiapkan blog ini . 

Sebelum itu , saya ingin memperkenalkan diri saya terlebih dahulu . Nama diberi Siti Sarah Wahida binti Ab Wahab .Nama ibu dan bapa saya Hj. Ab Wahab bin Embong dan Hajah Hindun Binti Muda . Mempunyai seorang adik sahaja yang bernama Siti Nur Athirah Binti Ab Wahab yang kin berusia 15 Tahun (2017 ) . Saya menuntut ilmu di Kolej Matrikulasi , Kuantan Pahang . Saya memilih untuk ambil Modul 3 yang terdiri 4 subjek utama iaitu Biologi , Kimia , Sains Komputer , dan Matematik .

Mengenai diri saya , makanan kegemaran ialah nasi kerabu , coklat dan kek . Wow , terliur pula rasanya bila mention makanan ni kan . haha , minuman kegemaran pula ialah air vanila dan coklat paling utama sekali air sejuk ok . Tinggal di Terengganu , lahir pada 11 October 1999 . Bercita-cita untuk berkerja di teknologi makmal perubatan . Saya paling sayang keluarga saya dan hanya mereka yang saya ada di dunia ini . InshaAllah saya akan cuba untuk menjadi insan  yang berjaya sepertimana mereka impikan dan membalas jasa mereka .