Checking to see if Windows Live Writer is still okay after all this years ~_~

Posting a test pic:

youngsuzakublur

Okay, done.

Time: 1 -2pm (Friday)
Location: MLT1

Mira and Atie decided to play truant for the first time today, so here I am on my own in this class. Technically, Lyn and Fareha are with me, but well… Today’s topic for Compsci 111 lecture is.. urm… Software. Looking at the first slide, I was like “Hrm… Free stuff.”

  • Software - usu. include -all data we’re working with
  • Data & instruction, initially separated
  • known also as programs
  • loaded from secondary storage into primary memory
  • runs (executes) from RAM
  • Software is loaded (HDD - RAM) - Read/Write CPU executes instruction (CPU)
  • Read up in CPU very rapidly
  • FILE FORMATS:
  • all data stored in binary numbers
  • organised in chunks (of related dtaa)
  • method of encoding - dep. on software, = file format
  • FORMATS - define the way numbers r interpreted
  • EXTs - a dot followed by letters at the end of a file
  • Windows OS use ext to determine file format n decide which apps to use to open a file

Why are standards needed? (standardised agreement)

  • OS - open standard - published freely to the public, free to use, maintained by a non-profit orgs (xml, html, uml)
  • But open x mean all good :P
  • Proprietary standard - intellectual prop of an entity (indivisual/comp), use is usu through license
  • risk for users: vendor lock-in

Proprietary Software

Software that has restrictions on using/copying

  • all rights retained by owner
  • owner enforces restrictions

License:

  • commercial
  • freeware
  • sharewre
  • semi free (usu non-profit org)

Freeware

  • software dist free - no agreement abt dist, access to source code
  • types: loss leader (given away with loss as sales promo), adware, donationware, postcardware
  • abandonware: not legally recognised (IE, iTunes, Adobe Reader)

Shareware

  • on the idea of ‘try b4 buying’
  • trial period: purchase license/upgrade to comm ver
  • nagware: reminder messages to license software
  • crippleware: softwr lacks the advanced features until licensed (word processor that can’t save of print - (HAHA! Sounds like OFFICE 2007, doesn’t it??)

Open Source/Free Software

  • freedom to use n study the work
  • to copy n share the work with others
  • change the work
  • distribute changed and therefore derivative works
  • copyright prevents these acts - explicit permission is required, free software license gives permission
  • Richard Stallman - free software foundation (FSF), GPL (GNU General Public License) - legal doc that gives permission :P, Copyleft

Kinds of Software

  • App software - helps user complete task
    System software - needed to run the comp
  • OS - manages all the hardware resources for apps (CPU, RAM..)
  • device drivers: help OS control hardwre
  • diagnostic and maintenance tools - for analysis, troubleshooting n optimisation

OS

  • low-level software - allow the use of system
  • default interface when no app is running
  • manages the system

Continued in notebook.

July 7th, 2008Here Comes A Test Post

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July 7th, 2008Hello world!

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