Central Processing Unit (CPU) Data processing Memory Unit Output Unit Primary Memory Secondary Memory

AJAX CSS JSON PHP XHTML XML

Abstract Factory design pattern Class High Level Design (HLD) Low Level Design (LLD) Object Singleton design pattern

Base64 Decode Base64 Encode Convert to Camelcase Convert to Lowercase Convert to Uppercase URL Encode

Current Date (IST) Current Time (IST) Current epoch timestamp Current unix timestamp Date and Time Time in 24 hour format

Calculator