CHAPTER 3 COMPUTER SOFTWARE

System Software Functions

• Manages hardware, software resources, and provides common services for application software.
• Controls memory, processor usage, and device management.

Bundled Software

• Various utilities and system management tools are typically included with a computer's operating system.

Specific Task Software

• Application software is designed for specific tasks for users, such as word processing or spreadsheet management.

Software Development Tools

• Programming software is used for writing, editing, and testing software programs.

Malicious Software

• The primary purpose of malicious software is to disrupt, damage, or gain unauthorized access to computer systems.

Resource Management Software

• System software manages computer memory, processors, and devices to enhance performance.

Parallel Processing Feature

• The ability of system software to run multiple programs simultaneously is defined by its multitasking capability.

Configuration Complexity

• The complexity of changing settings and configurations in system software is determined by its user accessibility.

System Proximity Indicator

• The closeness of system software to the physical system indicates how directly it interacts with hardware components.

Operating System Features

• Common features include user interface, file management, task management, and security provisions.

Embedded Operating Systems

• Mobile operating systems encompass smartphones, smartwatches, and video game systems.

Examples of Mobile Operating Systems

• Android and iOS are primary examples of mobile operating systems.

Non-Proprietary OS Example

• Linux is known for being non-proprietary and freely available online.

Virtualization in System Software

• Refers to creating virtual versions of resources like servers, storage devices, or networks.

Essential Utilities

• Utilities like disk checkers and system repair tools are essential in recognizing and correcting problems.

Activity Monitor Utility

• 'Mac OS X Activity Monitor' helps users track system performance and resource usage.

Purpose of System Software

• The main functionality is to facilitate the working of application software and manage hardware resources efficiently.

Adobe Reader Classification

• Adobe Reader is classified as application software for viewing PDF documents.

Instruction Source Software

• Low-level programming software includes basic instructions for computers to interpret and execute.

Simulation Software Goals

• Allows engineers to create models for testing and validation purposes before actual implementation.

Open-Source Software

• Software designed to be publicly accessible for modification and distribution is known as open-source software.

Compiler Functionality

• A compiler reads high-level language source code and translates it into machine language.

System vs. Application Software

• System software acts as a bridge between hardware and user applications; application software directly serves user needs.

Application Software Functionality

• Aims to solve specific tasks such as document creation or data analysis.

Development Challenges of Application Software

• Developing targeted software poses challenges in terms of customization and evolving user needs.
• Widely used application software can introduce security vulnerabilities due to its broad exposure.

Assembler Role

• An assembler in system software translates assembly language code into machine code.

Debugger Purpose

• The primary role of a debugger is to identify and fix errors in programming code.

Interpreter Functionality

• An interpreter translates high-level source code into machine code line-by-line during execution.

Integrated Development Environment (IDE)

• An IDE consolidates various programming tools, streamlining the software development process.

Procedural Language Features

• Imperative procedural languages involve commands for the computer to follow in a step-by-step manner.

Average Function in Programming

• The 'average' function calculates the mean of a set of values or data points.

Preprocessor Directive

• '#include' allows the inclusion of external libraries or files into the program compile process.

Sizeof Operator in C++

• The 'sizeof' operator determines the size, in bytes, of a data type or object.

Main Function in C++

• The 'int main()' function marks the starting point of execution in a C++ program.

Return Statement Significance

• 'return 0;' signifies successful completion of the program.

Namespace Usage in C++

• 'using namespace std;' allows direct access to the standard library names without qualification.

Disk Cleanup Utility

• The Disk Cleanup utility program clears unnecessary files to free up disk space.

Backup Utility in Windows 8

• Windows 8 includes a utility that backs up files in libraries, contacts, favorites, and desktop.

Utility Suites Purpose

• Utility suites in system software aim for efficient system maintenance and optimization.

Data Management Software

• Database software is used for managing employee, customer, and other business-related data.

Document Software Category

• Word processing software is categorized under application software for document creation and editing.

Multimedia Software Components

• Combines text, audio, graphics, animation, and video to produce interactive content.

Presentation Software Function

• Enables users to create visual presentations combining words and images effectively.

Web Browser Functionality

• Web browsers fetch and display information from the internet onto users' devices.

PowerDVD Classification

• 'PowerDVD' is classified as multimedia application software for playing DVD and high-definition content.

Microsoft Word Classification

• 'Microsoft Word' exemplifies word processing application software for document creation and editing.