5/25/2008

Earthquake in Sichun

ref
this is horrible
the Chinese authorities decided to give up
even though people still alive inside
which only explained one thing
China is a country doesn't regard human rights a lot of times

5/20/2008

annoying softwares :P

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  1. Adobe Reader
  2. Apple update
  3. Windows Update
  4. RealPlayer
  5. Java update
  6. yahoo toolbar
  7. Norton Antivirus
  8. Preinstalled software bundles: Sony Vaio
  9. Outlook/Exchange
  10. Flash

it seems that the author is being annoyed by a lot of auto-update stuff
apparently he doesn't know how to turn those off which is feasible
according to his point of view
luckily I didn't suffer from most of them since I'm using Ubuntu
but the only thing I can't get rid of is the slow, huge resource consumed Adobe Professional
I can't find relevant good software to replace it

5/07/2008

French

bonjour: how are you
salu: hello
bon voyage: have a nice trip

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5/03/2008

Cuba opens...

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China opens, Cuba opens, will North Korea be the next?

5/02/2008

browser test matrix for blogger

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damn it!
it doesn't test it under linux. Orz

CITES port list

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function
port
SSH, SFTP
Secure text & file transfer
22
Telnet
Text transfer
23
Mail (SMTP)
Email transfer
25
HTTP
Web pages
80
POP3
Email transfer
110
IMAP
Email transfer
143
HTTPS
Secure web pages transfer
443
RDP
Windows remote desktop
3389
VNC
Apple remote desktop
5900
Alternative HTTP
Web server
8080
DNS
IP information
53
finger
User information
79
LDAP
Directory services
389
NFS
Sun networked file sharing
2049
IRC
Internet chat
6660~9

5/01/2008

CS 241 review

# pipe:
  • a pipe is a FIFO queue allowing two processes to communicate
  • read, write request will be blocked if the pipe is empty or full
# file permission
  • owner/group/other: eg. 664: owner+group can read and write, other can read
  • read/write/exec(4/2/1): eg. read + exec = 5, read+write=6
# interrupt
  • interrupt is a mechanism to improve processing efficiency
# concurrency
  • concurrency is the sharing of resources in the same time frame
# asynchronous operation
  • techniques to deal with events happened at unpredictable time or in unpredictable order
# advantages of virtual memory
  1. address space can be larger than physical address(MainMEM as $ to disk)
  2. simplify MEM management
  3. protect address space for each process won't conflict with the other

comments of programming language

# html
-->(end)
載入中 ...

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