Wednesday, February 9, 2011

IGCSE section 1

Hardware: Physical component of software

Software : Set of commands that are processed for an output
Eg.
-Utility
-Application
-Operating system

Components:
-Mouse: Input Device
-CPU: Central Processing unit,reads the lines of instructions
-Ram: Green Random Access memory, changes all the time, volatile,only holds when you're currently doing
-Rom: Read only memory, Doesn't change, Permanent, non-volatile
-Hard drive: (secondary stage)

Interface: Graphical user interface
-GUIs are WIMPS -Window, Icons , Menus ,Pointers
-Command line interfac- When a geek types what he wants the computer to do

Left ImageTop : PC
Left Image Bottom: Palm Top = Netbook= small laptop
Right Image Top: Mainframe
Right Image Bottom: PDA (personal digital assistant)-Digital Personal Organiser-(Not a phone)

1 comment:

  1. Nice info but where are the images?
    Good design choice as well.

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