software

Command line interface

useful because draws less power

Interrupts

Memory management(virtualmemory)

Storage managment

User management

Scheduling

Peripheral management

Embedded

Distributed

Network/Multi User

Multi tasking

Real time

Basic input-ouput system

Interface between software and hardware/ peripherals

Software machines that mimic physical machines but run in software

Dividingserver resources effectively

A piece of software that performs a specific task not related to the computer itself

A piece of software designed to help in maintaining the computer

Applications software that can perfrom many generic tasksk, and is sold for a mass market .

Software that is designed to do one specific task/set of tasks

Software that is custom-written for the users purposes

• Dont have to buy smaller programs for specific purposes

• Is easy to acquire

• Often has regular bugfixes and support

• Types are word processor, presentation, spreadsheet, creative, photo editing, video editing, web browser

• Is more specific, so can perfrom task it is designed for at a higher level/quality

• can fill a gap in your functional portfolio

• Can fit your needs perfectly

• Can be customised during development

• Can be too inspecific to fit your needs

• Can be difficult to work with for your specific purpose

• Can be expensive

• Can be too i specific

• Can be difficultto scale

• Can be difficult to automate, reducing efficiency

• Definately expensive

• Can take a logn time to develop

• Can be difiicult to scale or automate if not designed correctly

• Miscommunication can lead to wasting huge amounts of time

Assemblers

Compilers - all at once

Translators - one line at once

In lexical analysis, the code is broken up into tokens, with whitespace and comments being ignored.