আমার দেখা রাজনীতির পঞ্চাশ বছর’ গ্রন্থটির রচয়িতা আবুল মনসুর আহ্‌মদ

পুঁথি সাহিত্যের প্রাচীনতম লেখক ফকির গরিবুল্লাহ।

রাজলক্ষ্মী চরিত্রের স্রষ্টা ঔপন্যাসিক শরৎচন্দ্র

১ মিটার ৩৯.৩৭ ইঞ্চির সমান

চালের বর্তমান মূল্য ৭২০ টাকা

২৫.৯৩ টাকা

পানির পরিমাণ ৪ লিটার

বেগম রোকেয়ার রচনা অবরোধবাসিনী

চাচা’ কাহিনীর লেখক সৈয়দ মুজতবা আলী

The key differences between virtual reality (VR) and augmented reality (AR) lie in how they immerse users in their respective environments:

1. **Environment Interaction:**
– **Virtual Reality (VR):** Completely immerses users in a computer-generated environment, often isolating them from the physical world. Users experience a fully artificial, 360-degree environment.
– **Augmented Reality (AR):** Overlays digital content onto the real world, enhancing the user’s perception of their surroundings. AR does not replace the real world but supplements it with additional information.

2. **User Experience:**
– **VR:** Offers a more immersive and isolated experience as users are fully immersed in a virtual environment. VR is typically experienced using headsets that cover the eyes and ears.
– **AR:** Allows users to see and interact with both the digital and real-world simultaneously. AR is often experienced through devices like smartphones, AR glasses, or heads-up displays.

3. **Application Purpose:**
– **VR:** Primarily used for creating artificial, immersive experiences, such as gaming, simulations, and virtual tours.
– **AR:** Used to enhance real-world experiences by adding digital information. Applications range from navigation and education to retail and gaming.

4. **Level of Immersion:**
– **VR:** Provides a higher level of immersion by completely replacing the physical environment with a virtual one.
– **AR:** Integrates digital elements into the real world, maintaining a connection with the physical surroundings.

5. **Devices:**
– **VR:** Requires specialized hardware like VR headsets, which often include motion tracking sensors.
– **AR:** Can be experienced using devices like smartphones, tablets, AR glasses, or specialized AR headsets.

In summary, VR creates a fully immersive digital environment, while AR overlays digital content onto the real world, blending the virtual and physical aspects of the user’s surroundings.