Summary Of Chapter 3

Internet Technology

Definition of Network : A network is a collection of computers and devices connected together via communications devices and transmission media allowing computers to share resources .

Definition of Communication Device : Hardware components that enables a computer to send and receive data , instruction , information to and from one or more computers. 

Definition of Transmission Media : The type of physical system used to carry a communication signal from one system to another . 

Advantages of Network : 

• Data sharing 
• Hardware sharing
• Internet access sharing
• Connectivity and Communication

Disadvantages of Network :

• Undesirable sharing
• Data security concerns
• Security issues
• Expenses/cost

Types of Network Architecture
 1) Peer-to-peer
Definition : A network model in which all computer can function as clients or server as needed , and there's no centralized control over network resources .

Advantages of peer-to-peer network :

• Less startup cost to set up the network architecture
• Easy to install and configure for the computers in the network
• When a peer fails it will not affect other peers so the network is reliable  

Disadvantages of peer-to-peer Network 

• Decentralized
• Less security 
• Every user is taking care its own machine

2) Client-Server Network
Definition : Network in which one powerful computer coordinates and supplies services to all nodes on a network

Advantages of Client-Server Network

• Centralized
• Scalability
• Better management files
• Accessibility

Disadvantage of Client-Server Network

• Expense
• Maintenance
• Dependence         

Types of Network Topology

1) Star Network : All computers and other devices on the network connect to a central devices , thus forming a star .

2) Bus Network : Consists of a single central cable , to which all computers and other devices connect.

3) Ring Network : On a ring Network , a cable forms a closed loop with all computers and devices arranged along the ring .

Summary Chapter 1 - Information Technology

Definition of Information Technology is the use of computer hardware and software to store , retrieve and manipulate information . 

Advantages of Information Technology

• -To efficiently and effectively access and search for information via the internet
• -Improves communication through communication technology
• -Improves data storage and file management

Disadvantages of Information Technology

• -Reduce job opportunity
• -Security breaches
• -Higher cost of hardware and software installation
• -Health risks 

IT Applications in Education

• -Learning management system
• -Library loan system 
• -Online tuition
• -Educational software
• -E-learning Web sites
• -E-test

IT Applications in Finance/Banking 

• -Online banking
• -Electronic payment system
• -Finance investment system
• -Online investing system

IT Applications Health Care

• -Telepharmacy
• -Surgery simulation
• -Health care Websites
• -Telemedicine
• -Telesurgery
• -Monitoring of patients

IT Applications in Science

• -Capsule Endoscopy system
• -Cochlear implants
• -Electrodes implant
• -Cardiac pacemaker implant
• -Neural network
• -Virtual reality

IT Applications in Travel

• -Global positioning system (GPS)
• -Car navigation system
• -Online reservation system/Booking system
• -E-ticketing system 

IT Applications in Government

• -e-Filing
• -e-penyata gaji dan laporan
• -UPU online
• -E-syariah 

IT Applications in Manufacturing

• -Computer-aided manufacturing (CAM)
• -Computer-aided design (CAD)
• -Barcode system 

IT Applications in Publishing

• -Online photo printing
• -Online card printing  

What is a computer? Computer is a programmable electronic device that accepts data input , processess the data , outputs the results and stores the results.

Supercomputer - 

physical size : full room of equipment

speed : the fastest and most powerful type of computer with thousands of processors capable of processing trillions of instructions per second

storage : highest storage capacity that can store complex and sophisticated applications , and can store more than 20000 times the data and information of and average desktop computer

Mainframes -

physical size : partial room to a full room of equipment 

speed : A large and powerful computer that can process millions of instructions per second and handle a thousands of connected computers 

storage : Larger storage capacity that can store data , instructions , and information for businesses applications and activities

Personal computer -

physical size : Small computer from desktop to laptop computers that fits on a desk or fits on your lap

speed : A computer based on a microprocessor designed for individuals and businesses 

storage : storage capacity ranges from GB to TB

Mobile computers -

physical size : computers that are designed to be carried around easily about the size of a paper notebook to fit in one hand

speed : A computer based on a microprocessor designed for individuals and businesses 

storage : storage capacity ranges from GB to TB

Mobile devices-

physical size : very small communications device (pocket-sized computers) 

speed : a computer based on a microprocessor that contain built-in computing or internet capabilities

storage : storage capacity up to GB that can store mobile applications

Embedded computers-

physical size : A tiny computer embedded into a product (installed in a device)

speed : tiny specialized microprocessors installed in a smart appliances and automobiles

storage : storage capacity normally in KB

 

Assignment Science Com - Topic 1

What is KMNS ?

Sweet and sour in kmns - Orang kata matriks ni susah , payah , struggle ..Tapi sebenarnya ..MEMANG PON . First day sampai je dah penat luls . First day memang emo , dah la tak pernah masuk asrama , tak pernah berpisah dengan parents . Teruk gak la first day dah nangis . Tapi nasib baik roommate tak nampak (kalau nampak, jatuh reputasi) .Mula mula masuk dapat modul 2 , physics and so on . Pastu tukar modul ke modul 3 , biology and so on . Kekonon taknak pening kira kira physics sekali pindah biology pun pening gak nak kenal hafal . Only my classmates yang paham "behaviour" time dalam class bio . Jadual memang pack . Class starts at 8am till 5 pm . And sometimes we also have classes at night . Memang nak menjana nilai dan skor nih ,mangattt haha . Blok asrama A( untk perempuan) basically paling dekat dengan semua benda . Blok C jauh dengan dewan kuliah semua . So memang bersyukur dapat blok A . All the boys dekat Blok B . Café A serve the best food among other cafes . That's my opinion la , org lain taktau la cemana .

Biasa la lecturer ada yang garang , ada yang sederhana , ada yang baik sangat pulak . Esaimen mesti on-time siapkan ,kalau tak , memang kena "basuh" dengan lecturer . Dulu masa mula mula masuk sini , mental breakdown sebab semua benda nak dikejar . Jodoh takda pulak nak kejar .eh ? haha . Haritu terpandang crush tapi dia buat don't know je . Taktau la tu jodoh ke bodoh . haha . Itu hanya sekadar selingan di blog ini . Mana tau kalau dah menguap ternganga mulut tu macam pintu gua . Actually kan , lecturers ni work hard untuk students (tetiba). Sometimes kita je tak perasan . Yang kita tahu manjang nak complain je kalau kerja banyak . They sacrifice their energy and time with their family just to be with us . Bunyi macam cliché , but that's the fact . Sometimes kita selalu tanya soalan yang sama , but they will explain it again and again to us without fail . Bukan sometimes but actually everytime .

In here , I've the best roommates ever .We do everything together . They are just like my sisters kat sini . They keep watching me  , make me laugh everyday and yeap , I'm lucky to have them . Takyah jumpa counsellor kalau nak nasihat , my roommates good in everything . We usually eat dinner together . Siap beli meja lagi nak letak kat bawah tu makan macam org jepun . Tapi muka still mcm orang melayu gak , takde pun bertukar cam org jepun hehhhh.. I lovee them like so much . definitely will be sad if I had to leave them .

Kalau pasal clasmmates pun , I've the best classmates . Sifat berperikemanusian and bekerjasama kitaorg tu terserlah bila time kena hantar esaimen (you know what I mean) . haha . Tak banyak beza pun dari sekolah puteri bcs dalam class perempuan ada 13 org and lelaki  ada 2 org jew . Memang lelaki dalam class tu tenggelam timbul la . Tu nasib baik tenggelam pastu timbul , Kalau tenggelam tak timbul timbul cane ? k gurau . Feeling thankful bcs they can accept me for who I am . Maklumlah masuk lambat kit sbb baru tukar modul , tapi boleh je go on together . That means me diterima dan disenangi ramai .  haha tu pun gurau , jgn muntah pulak ,basah screen phone kang . I can clearly describe them . The 2 boys are okay actually . Then nik always be my" problem solver " bila likes kat Instagram dah cecah 98+ likes then dia tolong jadikan 100 likes .Bhahahaha . Zimah , jay and siti always together , same like mira and syarfa , they help me a lot.n min with sab and tiqah with wani . Eh wait wani kan  paling kelakar bila dia stress pastu cuak haha . Farhana the joker haha . As they're two farhana in  class , they once decided to call her farhana original and me as farhana spicy . Like ..whatttt ?!? Ingat ni kepci ke nak orginal or spicy haha . And lastly , nama hajar tercicir haha just kidding.Takkan la tercicir.She helped me a lot . Couldn't repay . We all love to play "silent killer" even kat dalam dewan kuliah pon ! Pastu bising la " weh sape killer ?" " sape police ?" and "bila killer nak bunuh orang nih ?!? " okay ayat last tu selalu me yang laungkan . lol . I"ll miss those moment with them ..

Would like to dedicate this last paragraph to my friend whom helped me since the first day in matriks, jiaa . Even now we bawa haluan masing2 busy but we're still keeping in touch .I'm still remember how pagi2 sebelum sahur turun bilik dia just want to see her . Bsc shes the only one whom make me feel I'm at home in Seremban .Later we must go and eat steak at polperro steakhouse ok .

That's all that I can share about kmns . Full of happiness and sadness sometimes but the experience will teach us on how to be a tough and good human being when we're out there .

(Dah alang2 buka blog ni ,baca la sampai habis wak eah) Actually I don't know what to write since ye lah kan first time buat blog . Gayat ilee tak penah explore pun luls . Buat blog pun sbb lecturer sains com suruh , so basically semua student kmns (kmns stands for kolej matrikulasi negeri sembilan) ada blog ni , first post pasal myself , second post pasal kmns and third post pasal assignment .Bunyi macam boring but it is not !! (amboi kemain tanda seru acah acah tgh tulis blog mcm hanis zalikha/vivy yusof luls) .

Okay now , kalau cerita pasal latar belakang diri , orang lain mesti cerita pasal tinggal kat mana , adik beradik ada berapa, cita cita apa , hobi apa ,nama kucing apa alahai bosan ilee.Kita buat lain la dari orang lain . K tipu .I'm going to write exactly what the others write cuz I've no idea . Yg pasal takda idea tu tak tipu .Ye la kan buat esaimen last menet , padan la muka . Eh actually I don't even know how to post this tau , ni main pakai bantai tembak type je ni haha . Buta IT katakan. Haritu pun rasa amazed ilee roommate ajar cemana nak copy paste . (copy paste je pun , tu pun tak tau,cemanalah nak hidup nnti)

I've only my younger brother as my sibling . I'm the oldest lah. Actually hes my everything . Ye lah , nnti bila parents kita semua dah takda , adik beradik je la tempat menumpang kasih sayang (dah start dah drama sedih). My parents both are working parents . Memang busy la , lepas subuh keluar , pukul 10 malam baru sampai rumah . Me and my bro memang survive ,independent semua buat sndiri2.But we're still being clingy to our parents . Every hour lepas balik sekolah je mesti WhatsApp tanya mama n ayah "Kat mana tu?" actually kitaorg lapar sentiasa pastu pemalas nak masak that's why tnya "kat mana" manatau parents nak balik jap hantar kepci ke mekdi ke hehehhhh.. 

Mama kerja KL , since kitaorg duduk Seremban , dia ulang-alik KL-Seremban dah 20 tahun dah . Shes truly my idol . My syurga lovelove (Nampak cam anak mithali kit en haha). But its true , when you saw how hard your parents to raise you well , you"ll do your best in your studies . Ayah lak kerja sendiri . So basically dia ada banyak masa untuk give attention kat kitaorg dua beradik supaya tak rasa di-abandon sangat haha dua dua manja ngat nak buat cemana . He is like my superhero . Dulu kalau ada report card day kat sekolah , dia selalu lambat dtg . Jenuh beb jenguk luar pintu kelas , last2 dia mesti datang jugak.Even if my result not that good , dia tetap smile and give support . When I'm at my lowest stage , he will be there who believe in me and give whatever he could give in order for me to live well and not to worry about anything . I feel safe whenever hes around me .

Sekolah rendah kat sk puteri and sambung kat smk puteri . So basically mmg girls school dari kecik sampai ke besar . And..i don't have a guy as my friend.Pathetic life is it ? NO IT IS NOT . All girls school memang best .You can act and share and do anything you want without thinking to impress anyone .Biasalah perempuan kalau jumpa lelaki ," ter-cover cover" sana sini . I'm not that type of girl (ececehhhh hewhew) Gelak pun nak cover "hikhikhik ". Gelak je lah "HAHAHAHAHAHAHAHA!!" haa ambik . Dulu kalau gelak dalam class , kaki sampai terangkat angkat sampai nak terbalik kebelakang kerusi tu lol . buruk pangai . (not me , its my friend ngeeeee)Nak cerita pasal apa lagi ntah taktau la . Cerita je la pasal zaman kegemilangan .Bukannya ramai orang nak baca pun blog ni hehehh.. I love my form three moment . I succeed in my pmr . I saw the happiness and proudness from the precious people in my life which are mama and ayah . Pastu naik form 4 , IQ tu cam berkurang kit haha . Tak berapa nak success . Yang tak berapa nak success tu takpayah story la en .

Hanis Zalikha . tu satu nama yang memang bagi impact lam hidop . MINAT DIA GILA GILA GILA . I saw the difference in her from other celebrities . Adore gila dgn dia . Sampai satu tahap , kalau jumpa dia mmg boleh pengsan tepi jalan .  High blood pressure . haha . Kalau yang dah lama kenal tu memang muak la dengar cerita benda yang sama pasal dia . Sorry guys hehehh ..

I'm always afraid to lose my loved ones - Parents , family and of course my friends .  jenis yang susah nak rapat dgn org tapi kalau dah rapat , ill love that person with all my heart . Sometimes kalau dorang drive I'm always ask them " kalau dah sampai rumah , let me know" so that I wont be worried for whole day .Really hate it if guys hurts my friends till they cried .Like I'm here making an effort just to make them happy then suddenly lelaki mana entah broke their heart . Like serious?!? I really appreciate friendship . Even if I'm busy , i'll always make time for them . Even if they don't realise my presence , i'll always make their presence precious in heart . Even if they don't have time for me , i'll always make time for them . Even if they spot my weakness , I'll always proud of their strength .Even if they forget me , i'll always put they in mind and even if they couldn't love me anymore, i'll love them till the last breath of my life .