Revision For Computer Study EOY

💻 Your Work Station – Email Etiquette

• ✉ Emails should be respectful & appropriate.

• 🧾 Subject line tells what your email is about.

• 👀 BCC = Blind Carbon Copy.

• 🚫 No text speak to teachers (no “u” instead of “you”).

• 📚 Emails in school may be monitored by staff.

• 😊 Use a polite tone – kindness matters!

• 🎯 Keep emojis limited.

• 📝 Double-check spelling & grammar before clicking Send!

• 👤 Recipient = the one receiving the email.

• 🙌 Respect others in every message.

💬 Online Communication

• 🔐 123456 = terrible password ❌

• 🧠 Think before hitting Send.

• 🗣 “Stop, Speak, Support” = be brave & stand up online.

• 🍞 Sandwich feedback = nice → advice → nice again.

• 📖 Read feedback before reacting.

• 🎯 Feedback is for growth, not to hurt.

• 🤝 Online teamwork = stay friendly!

• 🧐 Sarcasm = confusing online.

• 🙅 Don’t use personal insults.

• 🙏 Always say “thank you” for feedback.

📊 Using Media & Formatting

• 📝 Word processor = type & format documents.

• 👁‍🗨️ Formatting helps make docs easier to read.

• 🔠 Make text bold, italic, or underlined to highlight key points.

• 📐 Tables help organize info clearly.

• 🧮 Spreadsheets = for numbers, not letters.

• 🎤 Presentations = for slideshows.

• 📉 Charts show data visually.

• 🔤 Changing size & colour = formatting!

• 🌟 Formatting makes important stuff stand out!

🖼 Licensing Appropriate Images

• 📜 Creative Commons lets you use content legally.

• 🚫 Using pics without permission = copyright violation!

• 💸 You could be fined £50,000 or jailed for 6 months 😱

• 🔍 Use “Usage Rights” filter on Google for safe images.

• 📆 Copyright Act = 1988

• 🖋 Even with Creative Commons – still credit the creator!

• 💰 “No commercial use” = don’t use it to make money.

• 🎨 Editing = changing things like colour or crop.

• ✅ Always pick images that match your topic.

📰 Credibility of Sources

• ✅ Credibility = how trustworthy info is.

• 🌍 Anyone can make a website – always check the source!

• 🕵‍♂️ Check author & reason behind the article.

• 📜 Use reputable sources for research.

• 🧠 Fake news tries to trick you or earn clicks 💰

• 🕰 Old info may not be useful today.

• 📚 Check Wikipedia's references at the bottom.

• 🧐 Funny names = 🚩 it might be fake!

• 🕵‍♀️ Hide clues when testing credibility with friends.

• 🗞 Sky News = reliable source.

⌨ Input, Output & Storage Devices

Input Devices 🖱 – Send info to the computer:

• ⌨ Keyboard

• 🖱 Mouse

• 📷 Camera

• 🎙 Microphone

• 🧿 Touchscreen

Output Devices 💻 – Show info from the computer:

• 💻 Monitor

• 🖨 Printer

• 🔊 Speakers

• 🎧 Headphones

Storage Devices 💾 – Save info for later:

• 💽 Hard Drive

• 💿 DVD Drive

• 🔐 USB Stick

🌀 Fetch-Execute Cycle

The brain of your computer – the CPU – does everything in a loop!

1. 🧠 Fetch the next instruction from memory.

2. 📖 Decode it – figure out what to do.

3. ⚙ Execute the instruction.

4. 🔁 Repeat again and again until shutdown!

🧾 The program counter (PC) keeps track of where the next instruction is.

🔢 Binary – The Language of Computers! 💻⚡

• Binary is a way of representing information using only two digits: 0⃣ and 1⃣.

• Computers use binary because they work with electrical signals that are either ON (1) or OFF (0). ⚡🔌

• Every piece of data, whether text, images, or sounds, is converted into long strings of 0s and 1s so the computer can understand and process it.

• For example, the letter A in binary is 01000001.

🎯 Key Points About Binary:

• Binary is base 2, meaning it only has 2 digits (0 and 1), unlike decimal which is base 10 (0-9). 🔢

• Each binary digit is called a bit (short for binary digit). 💡

• 8 bits together make a byte, which is enough to store one character like a letter or number. 📦

• Binary powers computers to do all tasks, from simple calculations to running complex programs! 🚀