COMP101

– Exploring Multimedia and Internet Computing LA1A (Wed 11:00 – TA: Jackie Lo 12:50)

TA Introduction

       Name: Jackie Lo Office: 4213A Phone:2358 8837 Email: [email protected]

Web: http://ihome.ust.hk/~jackielo Office hour: Thur 11:00 – 13:00 Lab: LA1A (take attendance)

Course Introduction

 Tips:  Keep regular lecture time yourself  Do not watch the video only before exam  Keep frequent update on the course portal and website

Lecture Review

 Hardware VS Software  Hardware: Computer equipment you can see and touch  Software: Instructions that controlling the computer equipment

Lecture Review

 Computers use binary for calculation  Each no. = a sequence of 0 ’ s and 1 ’ s  Each digit = bit      8bits (b) = 1 Byte (B) 1,024B = 1kB 1,048,576B = 1024kB = 1MB 1,073,741,824B = 1024MB = 1GB 1,099,511,627,776B = 1024GB = 1TB

Lecture Review

   For n bits, no. of representation = 2 n E.g. For 2 bits,   Possible representation: 00, 01, 10, 11 No. of representation: 4 = 2 2 Hardware Component  Any questions?

Lab Notes

  Email: Electronic Mail  Normal mail but they're in digital format.

  Email Address: {username}@{domainname} E.g. [email protected]

, [email protected]

Mailing List  list of people (email address) who subscribe to a periodic mailing distribution on a particular topic.

 E.g. [email protected]

Lab Notes

  Mail Client  Program for reading and sending email  E.g. Outlook Express, Netscape Messenger SMTP: Simple Mail Transfer Protocol  Protocol for sending email  Can also be used for receiving email but not commonly use

Lab Notes

  POP3: Post Office Protocol 3    Protocol for receiving email Email will be downloaded and deleted from the email server when you check email.

i.e. Cannot review the email in other computer IMAP: Internet Message Access Protocol    Protocol for receiving email Email will remain in the email server until you delete it.

i.e. Can review the email anytime anywhere

Lab Notes

  FTP: File Transfer Protocol  Protocol for exchanging files.

Search Engine  set of programs which perform page retrieval, indexing and processing search requests.

 web portals like Yahoo, Google which allow users make searches of the web using their search engine programs

Lab 1

  Follow the steps in lab 1 Notes for using web searching  A

–

b: search for A exclude b         A +b: search for A include b

“

A b

”

: search for exact match of [A b] A b OR c: search for A include either b or c intitle:A b: search in title for A and b A site:a.b.c: search in site a.b.c for A define:A: search for defination of A A ~b: search for A with the synonyms A author:B: search for publication A with author B