3.1.1 Basic Concept Of Network.! (Mari Kita Kongsi!!)
What Is a Network?
A network is a collection of computers and devices connected together via communications devices and transmission media
~Shelly Cashman~
What Is Communication Device?
-A communications device is any type of hardware capable of transmitting data, instructions, and information between a sending device and a receiving device
~Shelly Cashman~
COMMUNICATION DEVICES :)
Dial-Up Modems
•A dial-up modem is a communications device that can convert
•digital signals to analog signals
•analog signals to digital signals
|
Example of dial-up modem |
Digital Modems: ISDN, DSL, and Cable
•A digital modem is a communications device that sends and receives data and information to and from a digital line.
•Three types of digital modems are ;
1.ISDN modems
2.DSL modems 3.Cable modems.
Wireless Modems
•Wireless modems, which have an external or built-in antenna, are available as
1.USB flash drives
2.ExpressCard modules
3.PC Cards
4.Memory cards.
Network Card
•A network card, sometimes called a network interface card (NIC)
|
This is Network Card |
•The network card coordinates the transmission and receipt of data, instructions, and information to and from the computer or device containing the network card
Wireless Access Points
•A wireless access point is a central communications device
•Allows computers and devices to transfer data wirelessly among themselves or to transfer data wirelessly to a wired network
Router
•A router is a communications device that connects multiple computers or other routers together and transmits data to its correct destination on a network.
•Routers also support wireless communications , eliminating the need for a separate wireless access point in a wireless network
Hubs and Switches
• A hub or switch is a device that provides a central point for cables in a network
|
24-Port 10/100/1000 Gigabit Switching Hub SFP ZYXEL GS1920-24 |
Labels: sc_comp_note, sc_comp_note 05/10/2015
Mari Sama-Sama Kita Belajar.!
COMPUTERS ETHICS AND SECURITY
LEARNING OUTCOMES.!
}At the end of this topic, students should be able to:
◦Identify the rules of netiquette
4.1.1 Netiquette
Definition:
•Is the code of acceptable behaviours users should follow while on the internet
•Is the term for politeness when using the internet.
•Netiquette, or net etiquette, refers to etiquette on the Internet.
•Good netiquette involves respecting others' privacy and not doing anything online that will annoy or frustrate other people
Three areas where good netiquette is highly stressed are :
•E-mail
•Online Chat
•Newsgroup
Rules of netiquette
Rules of netiquette on social interaction and communication electronically.
1. Keep message brief
•Do not send uncompressed attachment
2. Be clear
•Make sure subject lines (e-mail) or page title( web page) reflects your content.
3. Use appropriate language.
•Use proper grammar, spelling and punctuation
•Do not use capital letter.(it's equal to shouting or screaming)
•Be polite, avoid offensive language
•Make a good impression – review / edit words and images before sending
•Use abbreviations and acronym for phrases
4. Be careful when using sarcasm and humour.
•It might be misinterpreted.
•Use emotions to express emotion
5. Avoid sending SPAM
6. Avoid forward chain letter.
7. Avoid sending or posting flames (abusive or insulting messages) and do not participate in flame wars (exchanges of flames).
8. Never access someone's private email.
9. Clearly identify a spoiler which is a message that reveals a solution to a game or ending to a movie or program.
10. Read the FAQ (frequently asked questions)
11. Do not assume material is accurate or up to date. Be forgiving of others‘ mistake.
12. Obey copyright laws
•Don't use others' images, content, etc without permission.
•Don't forward email, or use website content without permission.
13. Cite others' work you use.
SUMMARY.!
TRY THESE.!
1. Define netiquette.
2. What is the basic rule of netiquette?
3. Name two things you should remember about being online that are related to netiquette.
4. What is a flame war?
5. Why should you stay away from using all capital letters?
6. Why is it easy for there to be misunderstandings in online conversations?
7. What is an emoticon (smiley) and why would you use one? Give at least 2 examples and explain what they mean.
8. What should you do before forwarding personal emails to others?
9. List some items you think should be included in your college 's Internet Safety Tips.
10. List some items you think should be included in your college's Netiquette Rules.
Labels: sc_comp_note, sc_comp_note 05/10/2015
Perkongsian Ilmu Sains Bab 4
4.1.1 Netiquette
Learning Outcomes:
>At the end of this topic, students should be able to:
◦Identify the rules of netiquette
Definition:
•Three areas where good netiquette is highly stressed are :
Definition of computer ethics
•Moral guidelines that govern the use of computers and information systems
Shelly Cashman
•set of moral principles that regulate the use of computers http://www.techterms.com
Areas of computer ethics:
1.Information accuracy
2.Green Computing
3.Codes of conduct
4.Intellectual Property Rights
5.Information Privacy
1. Information Accuracy
- knowledge that is correct, or something that is true
-Information accuracy is a concern
*** not all information on the web is correct
2. Green Computing:
- Involving reducing the electricity and environmental waste while using a computer
3. Codes of conduct:
- Written guideline that helps determine whether a specific computer action is ethical or unethical
4. Information Privacy:
refer to the rights of individuals and companies to deny or restrict the collection and use of information about them
5. Intellectual Property
-Unique and original works such as idea, inventions, art, writing, processes, company and product name, and logos.
-Refer to the creation of mind used in commerce
Intellectual Property
-A legal term describing rights given to creators for their literary and artistic works
-literary works - novels, poems, plays, reference works, newspapers, computer programs, databases, films, musical compositions, and choreography
-artistic works - paintings, drawings, photographs, sculpture, architecture, advertisements, maps and technical drawings
Example : Licensed Windows 7
Intellectual Property
Importance of Intellectual
Property
-To protect any original work that created by individual person/ company for example, image, drawing, lyric, publishing and so on.
-Preserve the features and processes that make things work. This lets inventors profit from their inventions.
Labels: sc_comp_note, sc_comp_note 05/10/2015
TiDur
hye.!!!
selamat bertemu kembali., habis dh kelas ary ni., ermm., xtau nak ckp ape., tp tgok tajuk kat atas tu., tidur kan,,,, mcm biaselah kalau org yg tak duduk kat rumah untuk study, msty ade problem dgn tdo kn., mngantuk dalam kelas dan sebagainya kn., so i would like to share some fact about sleep., first of all., kalau ikot kajian barat kena tidur sampai 7 jam sehari kan., tp sebagai umat islam kajian hanye memerlukan 3-4 jam je sehari., betul., xtipu ni., korg kena cuba., serious.!
okay., ni satu kajian yg dibuat: i just type it back.,
"Dr Noorhisam dari Tahfiz Medic menukilkan dapatannya bahawa dalam sehari, kita hanya memerlukan tidur selama 3 jam.!"
"Dr Hamza Al-Hamzawi,, untuk bangun dengan cergas, kita tidak perlu tidur selma 8 jam seperti kajian barat,, tetapi cukup dengan tidur hanya tidur selama 3 jam sahaja., TETAPI, waktu tidur itu mestilah dari pukul 9malam sehingga 12 malam,, (tapi kita di zaman skrg ni kalau kita dapat tidur tepat pukul 10 dan bangun pd pukul 2pagi sedah cukup dari lebih,,),, "
"Berdasarkan sunnah, Rasulullah SAW sememangnya tidur di awal malam kerana tidur pada waktu ini adalah bermanfaat., seseorg itu boleh dapat 80% daripada tidur nyenyak pada waktu ini., waktu ini juga trdapat 'baraka' di dalamnya iaitu sejam waktu tidur bersamaan dengan tiga jam waktu tidur"
"pada masa tersebut kelenjar pineal mengeluarkan melatonin iaitu untuk membantu kita tidur,,"
"dari pukul 12-2 pagi merupakan waktu tidur yg tidak efektif kerana pada waktu ini terdapat 20% shaja waktu tidur nyenyak & selebihnya 80% adalah 'dream sleeping' yg tidak brguna lagi meletihkan., pada waktu ini tidur sejam bersamaan dengan sejam waktu tidur"
"dari pukul 2-5 pagisebelum subuh (Fajr) ini sebenarnya bukan lg waktu tidur tetapi adalh waktu yg paling sesuai untuk mnghafal,, mngingati Allah,,berzikir,, istighfar,, dan penumpuan mental,,"
"tidur pada waktu siang iaitu selepas Fajr adalah waktu tidur yg tidak brmanfaat kerana 3 jam kita tidur bersama dengan sejam je yg sebenarnya., ditambah pulak dengan kelesuan,, kekeliruaan,, dan hilangnya fokus.,"
"bagi mereka yg solat subuh secare berjemaah dan duduk mengingti Allah, pada waktu ini adalah sangat sesuai untuk berzikir dan mlakukan aktiviti harian,,"
"pembebasan melatonin oleh kelenjar pineal berkurangan selepas 40 tahun dan berhenti selepas 50 tahun., kemudian sesorg itu harus memanfaatkn apa yg telah trsimpan dalam badan sehingga sepanjg hayat."
"jika seseorg mendapat 'alzheimer' dan permulaan 'dementia' bermakna dia telah tidur lewat sepanjang hidupnya"
Wallahualam.!
so., tu je aq nak share., kenalpastilah masa yg sepatotnya kite tidur., especially unuk student2 ni kan., msty nak study kn., so tdo lh around 9-10 mlm n bangon around 12-2 pagi ek.,n kena pastikan satu persekitaran n kondisi yg sesuai sebeum tdo., tempat tdo msty bersih., n yg lebih penting,,, tdo dalam persekitaran yg gelap segelap gelapnya., tu penting.! baru kita akan betol2 lena., serious., n in fact kalau kita tdo dalm keadaan gelap badan kita akan keluarkn satu sel yg boleh melawan sel kanser kita membiak., mknenye klau tdo dlm cerah probability untuk dapat kanser tu lagi cerah., so., fikir fikirkanlah ea kawan2.,
jangan lupa bace doa sebelum tdo kay.!
#fikirsejenak
#buatapaygterbaikuntukdirikita
Labels: si NazRuL pemalas nie yg tulis
aHad di KeLantan
assalamualaikum.,
hai bloggers sekalian,, arini negeri kelantan cuti umum sempena ape ntah., so kitrg yg sepatotnye ade lecture arini pon cutilh., hihi., dr jumaat cuti ntah ape yg kitorg buat., study tu study jgak., tp santai2 je., pastu lyn movie je eery night., cite pitch perfect 2., fast and furious 7., pastu ape ntah satu lagi., ari jumaat tu kitorg outing g KB Mall., aq, aj, zul, afiq izwan., 4 org naik teksi., 10hinggit sorg., balik naik bas 3.30hinggit sorg., xbeli papew pon kat KB Mall., bejalan cuci mate., trnyata xseperti yg digambarkn oleh org lain., gempak je pdhl KB mall tu., xdek lh lemoh mcm kb mall tu., byk je kedai2 yg gempak., fuhhhh., jumpe sepupu aq kat sane., due org., n yg memeranjatkn,,,,, kitorg jumpe tc mel., tp xbertegur pon., nmpk jea., hihi., rupe rupenye xpeliklh., sbb bdk tgh holiday kn., lupe plak kitorg., hahahaha., then bile kitorg sampai kat matrik kitorg dpt tau ustaz rozeli nak dtg jumpe kitorg ari sabtu., hahaha., mcm lawak n tipu je., tp mmg ustaz dtg btol2., alhamdulillah., terubat rindu dekat warga semsas., tempat jatuh lagi dikenang kan., hahahah.,
tu ustaz rozeli.,
kitorg xcukup pon tu., sbb nawal, aishah humaira, n wanie balik., then tiqah saha n aifaa outing., so tggal kitorg je lh., ha.! izwan dye tdo kat dorm., sbb tu xdek dlm gambo., lupe nak kejut., hihi.,
okaylh nak cau dulu., aj, zul n zirul dh bising ni ajak g mkn., so., bye.!! esok dh start kelas balik., ari ni bdk2 dh start balik., so menjelang pukul 7 penuhlh org balik kat kolej kediaman ni.. hahaha., aq nak balik jugak., mggu first puase insyaAllah., tp balik rumah sedare je bkn balik jerantut., ;p
#keeppraying4me.,
#4flatmiliksemua
#insyaAllah
Labels: si NazRuL pemalas nie yg tulis
saTu perMulaan yaNg baRu
dunia sekarang ni kan memang memerlukan satu taraf pendidikan yang tinggi untuk membuka stu peluang kerjaya untuk diri masing2.. and sekarang aq yg bernama Wan Muhammad Nazrullah Bin Wan Nazli ni dh ditmpatkan katKolej Matrikulasi Kelantan (KMKt).. ni bermakna sekarang ni aq dh ade kat kelantan dah pon., jaoh dr family aq., tp untungnya yg hantar aq mse pendaftaran haritu ramai., sampai 3 biji kete., sbb family aq belah ayah ramai kat sini., sampai xtau nak tido rumah sape mlm sebelumnya., cuma yg xdpt hadir adalah abg aq., Wan Muhammad Nazrin Effendi., dye ade final exam untuk first semester degree dye., dh nak bejaye dh abg aq ni., alhamdullilah., lagi dua tiga taon kerjalah dye.,
ni sikit je yg masok gamba,, ade yg xmasok gamba.,
sekarang mase aq plak untuk teruskan perjuangan., alhamdulillah setakat ni aq dapat kwn2 yg dpt mndorong aq untuk terus belajar., diorg jage aq,, diorg paham aq,, diorg bantu aq bile aq memerlukan., tenkiu korg., tenkiu ajma'in,zul irfan,azirul afif n afiq izwan., ni yg betol2 aq rapat., sume budak semsas tu., ade lagi yg lain., mustaqim, aznan, aizat shaari,, tp diorg study kat floor atas,, jarang sgt jumpe aq.,study group masing2 kan,, stkt ni sume perkara yg aq xdpt tangkap mase pnp aq dpt catch up balik mase kat dorm., diorg lh yg tolong aq., diorg jge solat aq sume., alhamdulillah., ni lh hikmah dr Allah untuk aq., aq beryukur sgt2., walaupon aq xmcam bdk2 band aq yg hampir semuanya masok asasi,, buat degree,, masok ipg., tp aq tetap bersyukur., sbb inilah yg Allah tetapkan untuk aq., aq xmampu dh nak mnangis., aq dh letih bazirkan mase aq., tolonglh doakan aq agar x hilang fokus.,
ni lah sume kwn2 yg sangat rapat dengan aq., sayang korang.!!
aq pon dapat jgak kwn2 baru., aq due group yg aq ade kat sini., satu group ldk., mcam mentor mentee lh tu., satu lagi group tutoran/praktikum., ni mcm classmate lahh., dlm kelas aq dh xmcam dulu dhh., dulu aq tersangat bising dalam kelas., sekarang bisng jgak., tp kurang cket., sbb kwn2 baru tu masih lagi xkenal sape aq kan., so buat senyap lh dulu., diorg dlm praktikum aq sume gempak2 result., aq ni lemoh je., setakat result yg aq ade tu harap kwn2 prktikum aq tu paham n dpt tlg aq., please lhh., aq memerlukan pertolongan., please,,,,
ni group ldk aq., tu lah mentor aq., supporting orgnye.,
ni plak praktikum aq., baik kesemuanya., alhamdulillah.,
ni je kot yg aq nak ckp untuk post kali ni., insyaAllah aq akn update lagi lps ni., sume ni kisah hidup aq., kisah benar dan bukan rekaan., harap sume dapat memahami diri aq., segala yg terkurang yg terlebih tu ampun dipinta., love you guys., assalamualaikum...
Labels: si NazRuL pemalas nie yg tulis
sEmUanYa Ada MaKna
assalamualaikum.,
saya Wan Muhammad Nazrullah Bin Wan Nazli sangat merindui kehidupan saya yg dulu., post last kat bawah tu pasal spm., n sye mmg xbejaye pon dlm spm., so., korg tggulh post seterusnya pasal kehidupan saya., sekarang ni kat cc., xboleh taip banyk., saya nak taip satu post psal kawan2 kesayangan saya., tp bersabar ea., tggu masa mnizinkan.,
okay tu jea., lain kali jumpe lg., bye.!
Labels: si NazRuL pemalas nie yg tulis