Question:
With reference to mobile technologies, briefly explain the following:
I. SMS
II. 3G
III. 5G
With reference to mobile technologies, briefly explain the following:
I. SMS
II. 3G
III. 5G
I. SMS
II. 3G
III. 5G
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Give one line for each term: what it is and the one thing it is known for.
Updated On: Nov 3, 2026
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Solution and Explanation
Step 1: Understand the question:
The question asks for a short explanation of three mobile technology terms. Each term needs one clear definition and one key feature. Each part carries 1 mark.
Step 2: Explain SMS:
SMS stands for Short Message Service. It is the text messaging service of mobile phones. A short text, usually up to 160 characters, goes from one phone to another through the mobile network. It works on almost every phone, even a basic one, and needs no internet connection.
Step 3: Explain 3G:
3G stands for Third Generation. It is a mobile technology that brought much faster data transfer than the earlier 2G. Because of the higher speed, users could make video calls, browse websites and use the mobile internet for the first time in a practical way.
Step 4: Explain 5G:
5G stands for Fifth Generation. It is the latest generation of cellular mobile communication. It gives ultra-low latency (very small delay), so devices respond almost at once. It connects a huge number of devices together, such as IoT sensors, and gives much faster downloads than 4G.
Final Answer:
SMS is the text messaging service, 3G brought faster data with video calling and mobile internet, and 5G gives ultra-low delay, massive IoT connectivity and the fastest speeds. \[ \boxed{\text{SMS: text service; 3G: faster data and video calls; 5G: ultra-low latency and IoT}} \]
The question asks for a short explanation of three mobile technology terms. Each term needs one clear definition and one key feature. Each part carries 1 mark.
Step 2: Explain SMS:
SMS stands for Short Message Service. It is the text messaging service of mobile phones. A short text, usually up to 160 characters, goes from one phone to another through the mobile network. It works on almost every phone, even a basic one, and needs no internet connection.
Step 3: Explain 3G:
3G stands for Third Generation. It is a mobile technology that brought much faster data transfer than the earlier 2G. Because of the higher speed, users could make video calls, browse websites and use the mobile internet for the first time in a practical way.
Step 4: Explain 5G:
5G stands for Fifth Generation. It is the latest generation of cellular mobile communication. It gives ultra-low latency (very small delay), so devices respond almost at once. It connects a huge number of devices together, such as IoT sensors, and gives much faster downloads than 4G.
Final Answer:
SMS is the text messaging service, 3G brought faster data with video calling and mobile internet, and 5G gives ultra-low delay, massive IoT connectivity and the fastest speeds. \[ \boxed{\text{SMS: text service; 3G: faster data and video calls; 5G: ultra-low latency and IoT}} \]
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