Components of a Computer System

Hardware

The physical components that make up a computer system.

Software

The set of programs that control the computer system.

System Software

Programs that allow the hardware to run properly, e.g. Windows, Linux.

Application Software

Programs that allow the user to perform specific tasks, e.g. Excel, Word, PowerPoint.

Internal Hardware

Components located inside the computer, such as motherboard, RAM, ROM.

External Hardware

Components located outside the computer, such as keyboard, mouse, printer.

CPU

Central Processing Unit, the most important part of a computer that interprets and executes commands.

RAM

Random Access Memory, an internal chip that temporarily stores data when running applications.

ROM

Read Only Memory, permanent storage that cannot be altered, used to store configuration data.

HDD/SSD

Hard Disk Drive/Solid State Drive, main internal storage for operating systems, applications, and user data.

Operating System (OS)

Software that enables users to communicate with the computer system.

CLI (Command Line Interface)

An interface requiring users to type commands to perform operations.

GUI (Graphical User Interface)

An interface that allows users to interact with the computer using icons and pictures.

Advantages of CLI

Direct communication with the computer and no predetermined options.

Disadvantages of CLI

Requires learning commands, prone to errors, time-consuming.

Users of CLI

Programmers, technicians, or system operators needing direct communication for tasks.

Advantages of GUI

User-friendly, no need to learn commands, easier interaction.

Disadvantages of GUI

Limited applications visible, uses more memory, requires a higher-level OS.

Users of GUI

General users with little technical knowledge, using computers for basic tasks.