Basic of Hardware and Software

1. Computer Hardware

Hardware is categorized based on its role in the IPOS (Input-Process-Output-Storage) cycle.

• Input Devices: Tools used to feed data into the computer.
• Examples: Keyboard, Mouse, Scanner, Barcode Reader, Microphone.
• Processing Unit (CPU): The "Brain" of the computer that executes instructions.
• Components:ALU (Arithmetic Logic Unit) for math and CU (Control Unit) for managing traffic.
• Output Devices: Tools that display or print the results of processing.
• Examples: Monitor (VDU), Printer, Speakers, Plotters.
• Storage Devices: Where data is kept permanently.
• Examples: Hard Disk Drive (HDD), Solid State Drive (SSD), Pen drives.
• Memory:RAM (Temporary/Volatile) and ROM (Permanent/Non-volatile).

2. Computer Software

Software acts as the interface between the user and the hardware. It is broadly divided into two types:

A. System Software

This is the "background" software that manages the hardware so that application software can run.

1. Operating Systems (OS): Windows, Linux, Android.
2. Language Processors: Compilers and Interpreters that translate code into machine language.
3. Utility Software: Tools for maintenance, like Antivirus, Disk Defragmenter, and File Compression.

B. Application Software

Programs designed for the user to perform specific tasks.

1. General Purpose: Word processors (MS Word), Spreadsheets (Excel), Web Browsers (Chrome).
2. Specialized/Bespoke: Accounting software (Tally), or the Laravel-based E-commerce system you are developing.