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A2Z Computer
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Contact us for any doubts regarding Bank Exams : 7070702247

Welcome to AtoZ Computer By ADDA247 - A dedicated platform for Computer Awareness, Computer Basics, and exam-oriented computer preparation for Government and State-level competitive examinations. This channel is created for aspirants preparing for State Government Exams, Police Recruitment Exams (UP Police, Delhi Police), Teaching Exams, and IT or Computer-based examinations.

A2Z Computer provides free computer classes and exam-focused lectures on YouTube, covering computer fundamentals, MS Office, operating systems, internet concepts, and computer MCQs as per the latest exam pattern and syllabus. Our content supports preparation for clerical posts such as Clerk, Assistant, Stenographer, Computer Operator, and various state and central government exams.
Our mission is to make quality computer education simple, accessible, and exam-oriented for every aspirant preparing for competitive exams across India.

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Unable to parse item

Invidious encountered an error while trying to parse this item. For more information see below:

Show technical details 
Title: `Missing hash key: "collectionThumbnailViewModel" (KeyError)`
Date: `2026-01-18T16:09:53Z`
Route: `/channel/UCHNTYpnfm9StbW1jShFDLmQ`
Version: `2025.12.22-65bc6f46 @ master`

<details>
<summary>Backtrace</summary>
<p>
   
```
Missing hash key: "collectionThumbnailViewModel" (KeyError)
  from /home/invidious/crystal/share/crystal/src/hash.cr:1198:9 in '??'
  from /home/invidious/crystal/share/crystal/src/json/any.cr:149:5 in 'process'
  from src/invidious/yt_backend/extractors.cr:524:17 in 'process'
  from src/invidious/yt_backend/extractors.cr:1035:17 in 'parse_item'
  from src/invidious/yt_backend/extractors.cr:1082:14 in 'extract_items'
  from src/invidious/channels/videos.cr:29:22 in 'get_60_videos:continuation:sort_by'
  from src/invidious/routes/channels.cr:56:36 in 'videos'
  from lib/kemal/src/kemal/route.cr:13:9 in '->'
  from src/invidious/helpers/handlers.cr:31:37 in 'call'
  from lib/kemal/src/kemal/filter_handler.cr:22:7 in 'call'
  from /home/invidious/crystal/share/crystal/src/http/server/handler.cr:30:7 in 'call'
  from /home/invidious/crystal/share/crystal/src/http/server/handler.cr:30:7 in 'call'
  from /home/invidious/crystal/share/crystal/src/http/server/request_processor.cr:51:11 in 'handle_client'
  from /home/invidious/crystal/share/crystal/src/fiber.cr:170:11 in 'run'
  from ???
```
</p>
</details>