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Comp 2 8.2

Classification of Software

Software Consists of sequences of instructions called programs that can be understood and executed by hardware
Assembler Translates assembly language program into machine code
Compiler Translates high level language into object code
Interpreter Analyses and executes a high level language program a line at a time
Bespoke software Written for a customer’s specific need
General-purpose software Software that can be used for many different tasks
Special-purpose software Software designed to support one specific task
System software Performs tasks needed to operate the hardware
Operating systems Act as an interface between user and hardware
Library programs A collection of compiled routines that other programs can use
Utility programs Programs that perform a very specific task related to working with computers
Application Software Allows users to perform non-computer tasks
Machine Code Program code that the computer can execute directly
Assembly language Same structure as machine code but uses mnemonics instead of numbers
Low-level languages Languages where the instruction sets they use reflect the processor architecture
What are low-level languages also called? Machine-oriented languages
What are high-level languages also called? Problem-oriented languages
What is an imperative language? A language where the instructions are executed in a programmer-defined sequence
What is a declarative language? A language where you define what is to be computed rather than how the computation is done
Created by: Masterniket