Explanation

• SMS stands for Short Message Service.
• It is a text messaging service used on mobile phones and other communication systems.
• SMS was defined in 1986 as part of the Global System for Mobile Communications (GSM) standards.
• The first SMS message was sent on 3 December 1992.
• The first SMS was sent by Neil Papworth from a computer to a Vodafone mobile phone.
• First SMS Content: “Merry Christmas”.

Last verified on 09-08-2026

Explanation

• GUI stands for Graphical User Interface.
• It is a type of user interface that allows users to interact with electronic devices using icons, windows, menus, and buttons instead of typing commands.
• The first GUI was developed at Xerox PARC in the early 1980s.

Additional information:

• CLI – Command Line Interface
• CUI – Character User Interface
• VUI – Voice User Interface
• NUI – Natural User Interface

Last verified on 03-07-2026

Explanation

• CMS stands for Content Management System.
• It is a software platform used to create, manage, edit, and publish digital content.
• It allows users to manage website content without requiring extensive coding knowledge.
• Common CMS functions include managing web pages, blog posts, images, and other media.
• Examples include WordPress, Joomla, and Drupal.

Last verified on 09-08-2026

Explanation

• ROM stands for Read Only Memory.
• It is a type of non-volatile memory.
• So its contents are retained when power is turned off.
• ROM stores important instructions such as firmware and boot instructions.

Additional information:

• RAM → Random Access Memory
• PROM → Programmable Read Only Memory
• EPROM → Erasable Programmable Read Only Memory

Last verified on 08-08-2026

Explanation

• ICT stands for Information and Communication Technology.
• It refers to technologies used to collect, process, store, and communicate information.
• ICT includes computers, mobile phones, the internet, networks, and communication systems.
• It is widely used in education, business, healthcare, and government.
• ICT helps people access and share information quickly and efficiently.

Last verified on 08-08-2026