Information and Communication Technology (9-1) - 0983 CIE

Input Devices And Their Uses

Akopọ

Every time you tap a screen, press a key, speak to a voice assistant or let a thermostat read the room, you are feeding data into a computer. None of the clever processing inside a machine can begin until data has been captured from the outside world, and that is exactly what input devices do. From the humble keyboard to the temperature sensor buried in a greenhouse wall, each device is built for a particular job, with its own strengths and its own weaknesses.

In this lesson you will meet the full family of input devices the Cambridge syllabus asks you to know: keyboards and keypads, pointing devices, remote controls, joysticks and driving wheels, touch screens, scanners, cameras, microphones, sensors and light pens. More importantly, you will learn to choose the right device for a given situation and to justify that choice in exam terms, weighing speed, accuracy, cost and ease of use against one another.

Awọn Afojusun

  1. Input devices.
  2. Characteristics, uses, advantages and disadvantages of input devices including: keyboard, numeric keypad, pointing devices, remote control, joystick/driving wheel, touch screen (as an input device), scanners, camera, microphone, sensors, light pen.

Akọ̀wé Ẹ̀kọ́

A computer is only as useful as the data it is given. Choosing the wrong input device makes a system slow, error-prone or simply unworkable: imagine typing a thousand exam answers into a spreadsheet by hand when an optical mark reader could capture them in minutes. Examiners rarely just ask you to list devices. They give you a scenario, a supermarket checkout, a hospital monitoring system, a flight simulator, and ask which device fits and why. Knowing each device's characteristics, uses and trade-offs is what lets you answer those questions with confidence.

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Ìdánwò Ẹ̀kọ́

Oriire fun ipari ẹkọ lori Input Devices And Their Uses. Ni bayi ti o ti ṣawari naa awọn imọran bọtini ati awọn imọran, o to akoko lati fi imọ rẹ si idanwo. Ẹka yii nfunni ni ọpọlọpọ awọn adaṣe awọn ibeere ti a ṣe lati fun oye rẹ lokun ati ṣe iranlọwọ fun ọ lati ṣe iwọn oye ohun elo naa.

Iwọ yoo pade adalu awọn iru ibeere, pẹlu awọn ibeere olumulo pupọ, awọn ibeere idahun kukuru, ati awọn ibeere iwe kikọ. Gbogbo ibeere kọọkan ni a ṣe pẹlu iṣaro lati ṣe ayẹwo awọn ẹya oriṣiriṣi ti imọ rẹ ati awọn ogbon ironu pataki.

Lo ise abala yii gege bi anfaani lati mu oye re lori koko-ọrọ naa lagbara ati lati ṣe idanimọ eyikeyi agbegbe ti o le nilo afikun ikẹkọ. Maṣe jẹ ki awọn italaya eyikeyi ti o ba pade da ọ lójú; dipo, wo wọn gẹgẹ bi awọn anfaani fun idagbasoke ati ilọsiwaju.

  1. Which one of the following is an input device? A. Laser printer B. Speaker C. Microphone D. Plotter Answer: C
  2. A device that measures a continuously changing physical quantity such as temperature is called a: A. Scanner B. Sensor C. Light pen D. Trackerball Answer: B
  3. Which pointing device is most suitable for a user with limited wrist movement? A. Mouse B. Joystick C. Trackerball D. Driving wheel Answer: C
  4. Which input device can also act as an output device? A. Keyboard B. Touch screen C. Scanner D. Microphone Answer: B
  5. Sensor data must be converted before a computer can use it. Which component does this? A. DAC (digital to analogue converter) B. ALU (arithmetic and logic unit) C. ADC (analogue to digital converter) D. RAM (random access memory) Answer: C

O wa lori ohun elo Green Bridge

Gba ohun elo Green Bridge CBT sori foonu tabi kọmputa rẹ lati ri awọn akọsilẹ ẹkọ ni kikun, awọn ibeere adaṣe, ati diẹ sii.

Awọn akọsilẹ ẹkọ ni kikun pẹlu awọn aworan apejuwe
Oluranlọwọ ẹkọ ti AI ṣe agbara rẹ
Kọ ẹkọ laisi intanẹẹti, nigbakugba, nibikibi
O wa lori Android, Windows, macOS, ati Linux

O wa lori ohun elo Green Bridge

Gba ohun elo Green Bridge CBT sori foonu tabi kọmputa rẹ lati ri awọn akọsilẹ ẹkọ ni kikun, awọn ibeere adaṣe, ati diẹ sii.

Awọn akọsilẹ ẹkọ ni kikun pẹlu awọn aworan apejuwe
Oluranlọwọ ẹkọ ti AI ṣe agbara rẹ
Kọ ẹkọ laisi intanẹẹti, nigbakugba, nibikibi
O wa lori Android, Windows, macOS, ati Linux

Ṣe Adaṣe Awọn Ibeere Idanwo Adaṣe

Ṣe o fẹ ṣe adaṣe awọn ibeere idanwo adaṣe nipa Input Devices And Their Uses? Ṣe igbasilẹ ohun elo Green Bridge CBT lati wọle si awọn ibeere idanwo adaṣe ati awọn ayẹwo adaṣe kikun fun koko-ọrọ yii.

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