Examples of utility software
- anti-virus software
- file management/compressor
- disk clean up (deletes unwanted files)
- defragmentation (putting pieces of related data back together)
- firewalls (filters info from internet coming into computer)
What is utility software?
-a software that carries out some of the basic tasks the user needs to perform
What is the application software?
-software which users process text, numbers, still&moving images, sound
What built in things do application softwares have? (Word processors)
- word processing
- templates and wizards
- proofing tools e.g thesaurus
- styles
- layout tools
- on-screen forms
- shared projects
Describe DTP (desktop publishing software)
- concentrated on the layout of the document
- templates e.g leaflets, brochures
- used to produce electronic outputs like websites
Describe database management software
A software that can control all aspects of a database
What applications software can control numbers?
-spreadsheets for finance, statistics, trig and maths, date and time, database functions
How can applications software handle pictures?
- bitmap software
- vector software
Describe bitmap software
- made by splitting the screen into tiny square pixels
- quality is lost when enlarging a bitmap image
- tends to be for photos
- difficult for beginners to use with range of functions
Describe vector software
- graphics are made up of objects, each of which can be resized and edited etc
- used for diagrams
- smaller file sizes than bitmap
Application softwares to handle moving images
-animation software where drawing lots of individual frames can give an illusion of movement
Applications software to handle sound
- sound editing to change the shape of the waveforms to make a higher/lower pitch
- music composition so less time consuming. Produce harmonies
Presentation software uses
- used in lessons via an interactive whiteboard
- advertising in shopping centres
Describe web-authorising software
-web pages can be created on a simple text processor by writing HTML codes
Describe email software
- allows the user to store contact details in an address book
- can send an email to several people at a time
- can use reply buttons
Describe web browsing software
- allows users to navigate between internet and intranet
- back&forward buttons
- refresh buttons
- save websites to a fave list
- stop button
How to choose an application software
- consider the task
- end-user requirements
- user skill level and exp
- compatible software with already existing software
What are the 2 types of systems software?
Utility
Operating
What is bespoke software?
One off, custom made, to meet a set of requirements personall
What is systems software?
-computer software designed to operate and control the computer hard ware and to provide a platform for running applications software
What are the main functions of the operating system
- managing memory
- allocating processor time
- controlling where data is stored on disk
- communicating with input&output devices
- system security
- handling errors
