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Summary IGCSE 0417 ICT revision guide
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IGCSE 0417 ICT revision guide
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, IGCSE ICT SECTION 1: OPERATING SYSTEMSReal-time
Multi-user
Types of...
Distributed
Embedded A graphical user interface has
icons to help the user identify
applications / folders
Command Line Interface (CLI)
A GUI has a system of menus to
Windows, Icons, Menus & Pointers (WIMP) Types of...
help the user choose options
Used to communicate with a computer.
A GUI has windows to enable user to multi task
Instructions must be typed to get a
computer to carry out an action A GUI has a pointer/pointing
device to help navigate around the
It is more important that users CLI CLI vs GUI screen/to click to open
understand how a computer works files/software
Window – an area on the screen that A CLI only allows you to type in commands
displays information for a specific program. User Interfaces
With CLI syntax has to be precise
Icon represents a folder or a
program – can be seen within a Have to learn a lot of commands
window or freestanding on screen exactly/have to be familiar with
the commands
Menus – contains lists of options for a certain
program/software. GUI Commands difficult to edit once entered
Menus - are offered to help choose an action
Pointing device/Pointer – Is a vital component of the system
used to select menu software in a computer system
options/icons/close/open windows
Is a collection of software that
manages computer hardware
UNIX resources
Definition of...
Mac OS Provides common services
Linux for computer programs
Windows Application programs usually
Examples of... require
Symbian an operating system to function.
Android
BlackBerry OS
Apple OS
, IGCSE ICT SECTION 7.1: SOFTWARE INTEGRATION
Save spreadsheet in suitable format
Open / use DTP / word
processing package Create graphs
Create frames/boxes Load word processing software
Take photo using camera Frames could be created
Upload from camera / load from CD ROM Graph/Chart to Insert spreadsheet/ import spreadsheet/copy
/ download from Internet / scan photo Word Processor and paste spreadsheet/embed spreadsheet
Save the picture Picture to Magazine Insert/copy and paste graphs
Load magazine document Type/Edit in text/description of weather
Import / copy and paste / insert into document Import/insert pictures
Position the picture / resize Format report
picture/editing picture
Type text/import text files Load DTP/word processor
Open new document
Spreadsheet file will be saved
Create text/table frames
in a suitable format
Copy data from spreadsheet
Template / frames created in
DTP package Graph to Newsletter Paste data into text/table frame
Spreadsheet file imported in Sports Day Results to Enter text
to DTP package Magazine
Import graphs
Pictures imported into DTP package
Resize data
Text typed in and formatted
Printed out
Headings formatted
Save as chart/copy chart
Create database of exam
Exam Results to Load presentation
results using database /
spreadsheet Presentation Create frame
Produce reports using Insert file/paste chart
database software
Import data into spreadsheet Spreadsheet file will be saved
software / graphics package in suitable format
Exam Results to
Produce graphs using database / Website Template/frames created in
spreadsheet / graphics software DTP package
Create web page using word processor Create Graph to Report Spreadsheet file imported/copied
/ DTP / Web authoring package and pasted in to DTP package
Create links / import data using word Pictures imported into DTP package
processor / DTP / Web authoring package
Text typed in and formatted
Upload web page
Headings formatted
, IGCSE ICT SECTION 1: TYPES OF COMPUTER SYSTEMS
Generally cheap to buy
Desktop (Micro) Easy to upgrade
Telephones Computer Used in Schools/Offices/Homes
Televisions Versatile & easy to use
Washing Machine
Microwave Ovens Consumes less power than desktops
Found in...
Burglar Alarm Systems
Embedded Runs on batteries
Mobile Phones Computer Less powerful than desktops
Personal Digital Assistants Laptop/Notebook More expensive than desktops
Input from sensors Computer
Attractive to thieves
Outputs control the operation
Fragile - handle with care
Processes monitored by Microchip
Some (Not All) have Touch Screens
Weather forecasting
Space travel Very lightweight
Engineering Used in... Ultrabook Long battery life
Sciences Usually have smaller screens
Most expensive of all computers
Super
Requires trained personnel Computer Are a category of small,
Generates a lot of heat
lightweight, and inexpensive
Netbook laptop computers
Needs special working environment
Have small screens 11 & 12 inches
Needs own electricity generator
Produces trillions of calculations a second
Doesn't contain DVD/CD drives
Drawback The screens are small especially
Can cost millions of £'s
when browsing the Internet
Handles complex calculations Mainframe E-mail
Requires very large room space Computer
Notes
Needs air-conditioned environment
Personal Digital Features of... E-diary
Assistant (PDA) Contacts list
Look similar to desktops and PalmTops
Touch Screen
Used by medium-sized businesses Mini
Costs more than desktops, Computer Small/Portable
less than mainframes Small Storage Capacity
Cheaper than Laptops
Data input by Stylus/pen/keypad
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