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Computer Systems 1000115995 - Coggle Diagram
Computer Systems
Classification of Computer Definition : Categorizing computing systems
☆On the basis of size
Supercomputer
Mainframe Computer
Mini Computer
Mirco Computer
☆On the basis of functionality
Servers
Workstation
Information Appliances
☆On the basis of data handling
Analog
Digital
Hybird
Computer Hardware Definition : Collection of physical elements that consitutes a computer system.
Components of computer systems
Central Processing unit (CPU)
1) Processes instructions and data
2) Performs arithemtic and logic operations
Input/Output Devices
Input
Examples : Keyboard, mouse, scanner and touchcreens. Also converts inputs into digital signals
Output
Example : Keyboard, mousse, speakers and braille displays
Memory
Primary Memory
:star: RAM(Volatile) : Temporary data storage
:star: ROM(non-volatile) : Stores bootloader
Secondary Memory
Examples : HDD, SSD, USB drives.
Used for permanent storage
Cache Memory
High-speed memory between CPU and RAM
Storage Devices
Computer Software Definiton :
Operating System
responsible to manage all the resources such as CPU, printer and hard disk.
Example : Windows, Linux, Macintosh, Ubuntu, Fedora, Andoraif, iOS
System Utilities
Software used for maintence and configuration of computer system
Not shipped with the operating system but are required to improve the performance of the system, for example, anti-virus, software, disk cleaner tool and disk compression software.
are shipped with the operating system for example, disk defragmentation tool, formatting utility and system restore utility.
Device Drivers
ensure proper functioning of a particular device
acts as an interface between the device and the operating system
Applications software
General Purpose
Developed for generic applications, to cater to a bigger audience in general
Example : Microsoft Excel, Adobe Photoshop, GIMP, Mozilla web browser, iTunes, Google Chrome
Customised
Developed to meet the requirements of a specific organisation or an individual
Example : Website, school management software, accounting software
Types of Application Software
Business software : word processors, spreadsheets, and database programs.
Communication software : allows computers to communicate with other computers
Graphics software : software that allows users to create and manipulate graphics
Education and Reference software : help teach new material and ideas, and programs that can be used to find information such as Kahoot, Quizizz, Duolingo
Entertainment and Leisure software ; Warcraft, Age of Empires, Valorant, PUBG, Call of duty
Integrated software ; combines several types of software into one program or package
