computing 💻🎮🖥️🛜

What is CPU

Processes instructions and carries out calculations

RAM

Holds data and programs currently in use; temporary

Storage

Keeps files, apps and the operating system long term

Motherboard

Connects components so they can communicate

A faster CPU can help with what?

processing tasks, but it’s not the only part that affects speed

While the computer is on, RAM holds…

All the information the CPU needs right now, it’s contents are normally lost when power is switched off

You open a browser, a document and a game. They all need working memory. What is needed to make switching between apps smoother?

RAM

Storage- keep it for later. What are some examples?

SSD (solid state drive), HDD (hard disk drive). Both can store files and applications.

Storage main job-

Stores information even after the computer is switched off.

Motherboard main job

Holds and connects major components letting them communicate

Input

Sends data or instructions into the computer

Output

Presents information from the computer to a user

explain the Choo choo train of output/input/storage/other

Input → processing → Output [STORAGE KEEPS FOR LATER]

Input devices examples-

• keyboard: text and commands

• Mouse: movement and clicks

• microphone: sound

• Camera: images and video

Output examples- info comes out

• monitor: displays text, images, video

• Speakers: produce sound

• Printer: creates physical copy

Storage examples (in out storage)

• SSD- fast long term storage in many compoooters

• HDD- long term storage, often offers a large capacity

• USB drive- portable storage for moving or keeping files

Devices can have two roles- like touchscreen which is input and output. How!

Touch sends a users selection into the system= INPUT

The screen displays information back to the user= OUTUT

Hardware

The physical parts of a computer system

Software

Programs and instructions that run on a computer system

Application software

Helps the user complete a specific task

Examples:

• words processor- creates documents

• Presentation software- makes slides

• Web browser- access websites

• Media editor- edit images/video

System

Helps the computer system operate and manages hardware.

Example:

• windows

• MacOS

• ChromeOS

• Linux

Computer network

Two or more devices connected so that they can communicate or share resources

Examples of computer network

• share files

• Share printers

• Communicate (messages)

• Manage resources

What is LAN?

Local area network, covering a small area like one room, building or school site.

What is WAN?

A network connecting devices or smaller networks over a much larger geographical area,

What is HTML?

HyperText Markup Language. The standard markup language used to structure web-page content. HTML marks up text using elements and tags.

What HTML does?

A browser reads a HTML file and displays the page. HTML can structure headings, paragraphs, images and links.

Page structure:

<html>

<head>

<title> yo world </title>

</head>

<body>

<h1> helloo <h1>

<p> dis ma page </p>

</body>

</html>

What starts a new paragraph?

<p> </p>

What starts a new line in a paragraph?

<br>

How to do bold and italic?

<b> <i>

Which is bigger <h1> or <h2>?

<h1>