Dere computer training center

25/05/2025

26/02/2025

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Ten Unknown Facts About

1. Founding and History: Mercedes-Benz traces its origins to Karl Benz, who created the first gasoline-powered car, the Benz Patent-Motorwagen, in 1886. The brand, however, officially formed in 1926 after the merger of Karl Benz's and Gottlieb Daimler's companies.

2. Star Logo: The three-pointed star in the Mercedes-Benz logo represents the brand's dominance on land, sea, and air. It symbolizes the company's ambition to create motorized vehicles for all terrains.

3. Pioneering Safety: Mercedes-Benz has a long history of innovation in automotive safety. They were the first to introduce crumple zones in cars, an innovation that greatly enhanced passenger protection during collisions.

4. First Diesel Passenger Car: In 1936, Mercedes-Benz introduced the 260D, the world’s first diesel-powered passenger car, which set a new standard for fuel efficiency and reliability.

5. Luxury and Craftsmanship:

30/11/2024

18/07/2024

Ctrl+A - Select All
Ctrl+B - Bold
Ctrl+C - Copy
Ctrl+D - Fill Down
Ctrl+F - Find
Ctrl+G - Goto
Ctrl+H - Replace
Ctrl+I - Italic
Ctrl+K - Insert Hyperlink
Ctrl+N - New Workbook
Ctrl+O - Open
Ctrl+P - Print
Ctrl+R - Fill Right
Ctrl+S - Save
Ctrl+U - Underline
Ctrl+V - Paste
Ctrl W - Close
Ctrl+X - Cut
Ctrl+Y - Repeat
Ctrl+Z - Undo
F1 - Help
F2 - Edit
F3 - Paste Name
F4 - Repeat last action
F4 - While typing a formula, switch between absolute/relative refs
F5 - Goto
F6 - Next Pane
F7 - Spell check
F8 - Extend mode
F9 - Recalculate all workbooks
F10 - Activate Menu bar
F11 - New Chart
F12 - Save As
Ctrl+: - Insert Current Time
Ctrl+; - Insert Current Date
Ctrl+" - Copy Value from Cell Above
Ctrl+’ - Copy Formula from Cell Above
Shift - Hold down shift for additional functions in Excel’s menu
Shift+F1 - What’s This?
Shift+F2 - Edit cell comment
Shift+F3 - Paste function into formula
Shift+F4 - Find Next
Shift+F5 - Find
Shift+F6 - Previous Pane
Shift+F8 - Add to selection
Shift+F9 - Calculate active worksheet
Shift+F10 - Display shortcut menu
Shift+F11 - New worksheet
Ctrl+F3 - Define name
Ctrl+F4 - Close
Ctrl+F5 - XL, Restore window size
Ctrl+F6 - Next workbook window
Shift+Ctrl+F6 - Previous workbook window
Ctrl+F7 - Move window
Ctrl+F8 - Resize window
Ctrl+F9 - Minimize workbook
Ctrl+F10 - Maximize or restore window
Ctrl+F11 - Inset 4.0 Macro sheet
Ctrl+F1 - File Open
Alt+F1 - Insert Chart
Alt+F2 - Save As
Alt+F4 - Exit
Alt+Down arrow - Display
AutoComplete list
Alt+’ - Format Style dialog box
Ctrl+Shift+~ - General format
Ctrl+Shift+! - Comma format
Ctrl+Shift+@ - Time format
Ctrl+Shift+ # - Date format
Ctrl+Shift+$ - Currency format
Ctrl+Shift+% - Percent format
Ctrl+Shift+^ - Exponential format
Ctrl+Shift+& - Place outline border around selected cells
Ctrl+Shift+_ - Remove outline border
Ctrl+Shift+* - Select current region
Ctrl++ - Insert
Ctrl+- - Delete
Ctrl+1 - Format cells dialog box
Ctrl+2 - Bold
Ctrl+3 - Italic
Ctrl+4 - Underline
Ctrl+5

18/07/2024

✳️ Hacking Kutaa 1ffaa:

◽️ Hacking osoo hin baratin dura maal akka ta'e beekuu qabna, kanaaf Episode kana keessatti waa'ee Hacking fi Hacker ni dubbanna.

🔺Hacking jechuun maali?

◽️ Hacking jechuun kompiitara fayyadamuun sirna kompiitaraa ykn neetworkii dhuunfaa cabsanii seenuudhaan odeeffannoo argachuudha. Haa ta’u malee, Hacking yeroo hunda hojii hamaadhaaf kan oolu miti. Dhaabbileen tokko tokko namoota kompiitara hack goochuu danda’an qacaruun sirna mataa isaanii cabsanii akka seenan jajjabeessu. Sana booda, haakeroonni kun yeroo cabsanii seenan haala isaa haakeroota kana Gaafachuun siistema isaanii sirreeffatu.

Social Engineering jechuun maali?

◽️ Afaan Oromoo salphaadhaan mataa namaa hack gochuu dha. Yeroo baayyee waa'ee hacking yeroo yaadnu hojiin guutuun kompiitara irratti xumurama jennee yaadna, garuu yoo hacker tokko malware fayyadamaa jira ta'e fakkeenyaaf, namoota gowwoomsee email isaan beekan akka bananiif soba amansiisaa uumuu qaba. Kanarraa ka’uun aartiin namoota gowwoomsuun amantaa horachuy kun hackers’f baay’ee faayidaa qaba.

🔺Hack gosa meeqatu jira?

◽️ White Hat Hacker: Duraan dursee hackers kun waa'ee hacking beekumsa guddaa waan qabaniif beekumsa isaanii karaa seera qabeessa ta'een fayyadamu. Haakeroonni kunneen cimina nageenya sirna interneetii ilaaluuf Pe*******on Testing raawwatu. Sistema dhaabbata tokkoo cabsuufis Eeyyama warreen qabanidha.

◽️ Black Hat Hackers: Beekumsa kompiitaraa qaban hojii seeraan alaatiif fayyadamu. Kana jechuun gama dadhabaa siistema Dhaabbata tokkoo qoratanii odeeffannoo adda addaa hatanii gurguru ykn balleessu. Salphaatti yoo ilaalle, qaawwa unka interneetii keessatti mul’atu hatuu, cabsuu , jijjiiruu fi fayyadamuu irraa eegalee beekkamtii ykn bu’aa maallaqaa argachuuf hojjetu.

◽️ grey / Brown Hat Hackers: Hackers kun yeroo baay'ee akeeka wal makaa qabu. Akkuma halluu, gosti hacker kun yaada gaarii white hacker qabu, akkasumas akka black hat Hacker yaada badaa ni qabu.

16/07/2024

Basics: Buttons and Ports on a Computer



Take a look at the front and back of your computer case and count the number of buttons, ports, and slots you see. Now look at your monitor and count any you find there. You probably counted at least 10, and maybe a lot more.

Each computer is different, so the buttons, ports, and sockets will vary from computer to computer. However, there are certain ones you can expect to find on most desktop computers. Learning how these ports are used will help whenever you need to connect something to your computer, like a new printer, keyboard, or mouse.

of a computer case

Optical Disc Drive

Often called a CD-ROM or DVD-ROM drive, this lets your computer read CDs and DVDs.

Power Button

The power button is used to power the computer on and off.

Audio In/Audio Out

Many computers include audio ports on the front of the computer case that allow you to easily connect speakers, microphones, and headsets without fumbling with the back of the computer.

USB (Universal Serial Bus) Port

Most desktop computers have several USB ports. These can be used to connect almost any type of device, including mice, keyboards, printers, and digital cameras. They will often appear on the front and back of the computer.

Back of a computer case

The back of a computer case has connection ports that are made to fit specific devices. The placement will vary from computer to computer, and many companies have their own special connectors for specific devices. Some of the ports may be color coded to help you determine which port is used with a particular device.

13/06/2024

07/05/2024

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10 lessons from the book "Thinking 101: Thoughts to Make You Think" by John C. Maxwell:

1. Critical Thinking: Cultivate critical thinking skills by questioning assumptions, evaluating evidence, and considering alternative perspectives before forming opinions or making decisions.

2. Creative Problem-Solving: Practice creative problem-solving techniques to overcome challenges and find innovative solutions. Use creativity and think outside the box to generate new ideas and approaches.

3. Effective Decision-Making: Improve your decision-making process by weighing the pros and cons, considering potential outcomes, and consulting others when necessary.

4. Continuous Learning: get a mindset of continuous learning and growth. Stay curious, seek out new knowledge and experiences, and be open to expanding your understanding of the world.

5. Self-Reflection: Take time for self-reflection to assess your thoughts, beliefs, and behaviors.

6. Emotional Intelligence: Develop emotional intelligence by recognizing and managing your own emotions, as well as understanding and empathizing with the emotions of others.

7. Effective Communication: Improve your communication skills to convey your thoughts and ideas clearly and persuasively.

8. Strategic Planning: Apply strategic thinking to set goals, prioritize tasks, and develop action plans for achieving success.

9. Adaptability: Accept change and uncertainty by cultivating adaptability and flexibility in your thinking. Be open to new ideas, perspectives, and opportunities for growth.
10. Resilience: Build resilience to navigate setbacks, challenges, and failures. Learn from adversity, bounce back from setbacks, and maintain a positive outlook on the future.
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t.me/derejegezmu

14/04/2024

⏯HARDWARE TROUBLESHOOTING AND MAINTENANCE
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Join and Share https//:t.me/derejegezmu telegram channel
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💻 Part 1
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➡Hardware troubleshooting is a systematic approach to locating the cause of a fault in a computer system and solving technical problems. It starts with general issues and then gets more specific.

⏯HARDWARE TROUBLESHOOTING PROCEDURES
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✳Hardware troubleshooting is the process of receiving, diagnosing,and identifying operational or technical problems within a hardware device or equipment. It aims to resolve physical and /or logical problems and issues within computing hardware.
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➡️Many computer problems can be solved by checking the following simple hardware problems
👉Check that your computer is plugged into a working power outlet.
👉Check that everything is turned on.
👉Check to see if the monitor is plugged into a power outlet and if the connection between the monitor and computer system unit is connected securely.
👉Check that the keyboard, mouse, monitor, speakers, etc.are properly plugged into the computer system.......
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Join and Share https//:t.me/derejegezmu telegram channel

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08/04/2024