Thursday Computer System 26. 02.2025

Input Devices in dangerous places:

People use special input devices in dangerous places to stay safe. These devices help them see, measure, and control things from far away. Sensors check heat, gas, and radiation. Cameras help people see without going near danger. Robots do risky jobs like removing bombs or handling chemicals. Drones fly to take pictures and find people in emergencies. Touchscreens and keypads help control machines safely. These devices protect people while letting them work in unsafe places. 🚀

How do sensors save humans from danger?

Sensors help people by finding danger early and giving warnings. This helps them stay safe. Gas sensors find harmful gases in mines and factories to stop poisoning.

• Temperature sensors check heat in fires and machines to prevent burning.
• Radiation sensors warn workers in nuclear plants about radiation.
• Motion sensors help security systems by spotting danger.
• Water sensors detect leaks to stop floods.

Sensors protect humans by stopping accidents before they happen. 🚨

Input Devices at Home:

A smart device is an electronic device that can connect to the internet and work on its own or with voice commands. It helps people do things easily and quickly.

Examples:

• Smartphone – Makes calls, takes photos, and runs apps.
• Smart TV – Connects to the internet to watch videos.
• Smartwatch – Tracks time, health, and messages.
• Smart speaker – Listens to voice commands to play music or give information.
• Smart lights – Can be turned on/off using a phone or voice.

Smart devices make life simple and fun! 😊

Sensors and safety:

Sensors are devices that detect and respond to changes in the environment, converting physical phenomena into electrical signals for monitoring and control purposes. In the context of safety, sensors play a crucial role by identifying potential hazards and triggering appropriate responses to prevent accidents or damage.

Temperature sensors are a specific type of sensor designed to measure heat energy, allowing systems to monitor and regulate temperature-dependent processes.😎

Using input devices to control output:

Assalamualaikum👩

Input devices (like buttons, sensors, or keyboards) send signals to a computer. Output devices (like lights, speakers, or screens) react to those signals.

Examples:

1. Press a button (input) → Light turns on (output).
2. Clap near a microphone (input) → Music plays from a speaker (output).
3. A temperature sensor detects heat (input) → A fan starts spinning (output).

This is how computers and machines follow commands to make life easier! 😊

Input devices send signals, and output devices react to them.

Examples in Shopping:

1. Barcode scanner (input) → Price appears on the screen (output).
2. Touchscreen at self-checkout (input) → Receipt prints (output).

Examples in a Plane:

1. Pilot moves the joystick (input) → Plane changes direction (output).
2. Passenger presses a button (input) → Light turns on above the seat (output).

This is how machines follow commands to make things work! 😊✈️

Final Term Computer Systems Page 214 - 217 17.2.2025

What is Input Device and the names of the devices?

An Input Device is a hardware device used to send data or instructions to a computer. It allows users to interact with the computer by providing input, such as text, commands, or control signals.

Examples of Input Devices:

1. Keyboard – Used for typing text and commands.
2. Mouse – Used to control the cursor and click on items.
3. Touchscreen – Allows direct interaction by touching the screen.

What is a Cursor?

A small symbol on the computer screen that shows where something will happen next. It helps users type, click, or move things on the screen. The cursor can change shape depending on what you are doing. For example, when typing, it looks like a blinking line (|), and when using a mouse, it looks like an arrow .

What is a Sensor?

"A device that can detect changes in the environment, such as light, temperature, sound, or movement. Sensors collect this information and send it to a computer or other electronic devices to help them respond. For example, a temperature sensor can check how hot or cold a room is, and a motion sensor can detect if someone is moving nearby. Sensors are used in many everyday things, like automatic doors, streetlights, and smartphones."

What are Remote Input Device? 

A device that allows users to enter information into a computer or control it from a distance, without using direct wires or cables. These devices send signals wirelessly using technologies like Bluetooth, infrared, or Wi-Fi. Examples of remote input devices include a wireless keyboard, a remote control for a TV or projector, a game controller, and a wireless mouse. These devices make it easier to control computers and other electronic systems from a distance.

What are input devices for measuring data over time?

These input devices collect information continuously and send it to a computer for analysis. They help measure things like temperature, light, sound, and movement over a period of time. Some common examples include temperature sensors, which track how hot or cold something is, motion sensors, which detect movement, and sound sensors, which measure noise levels. These sensors are used in weather stations, security systems, and even in smart homes to automate tasks.

What is the input devices far away?

These devices allow users to send information to a computer or control it from a distance without using wires. They use wireless technology like Bluetooth, infrared, or Wi-Fi to send signals. Some common examples include a remote control, which is used to operate TVs and projectors, a wireless mouse and keyboard, which help control a computer without being directly connected, and a game controller, which allows players to control video games from a distance. These devices make it easier to use technology without staying close to the computer or machine.

THANK YOU FOR READING !

Assalamualaikum 😊😄