Information and Communication Technology - 4IT1 PearsonEdexcel

Types Of Digital Communications

Akopọ

Every text message, video call and file download depends on digital devices being able to talk to each other. Whether the signal travels through a copper cable, bounces off a satellite or hops across a wireless network, understanding the different communication methods is essential for choosing the right one in any given situation.

In this lesson you will explore device-to-device connections, compare network types such as LANs and WANs, and examine the full range of wired and wireless technologies that keep our digital world connected. You will also learn how to evaluate the strengths and weaknesses of each approach, a skill tested regularly on both Edexcel papers.

Awọn Afojusun

  1. Know the range of ways that digital devices communicate: satellite, broadcast (TV, radio), wired (cable), wireless
  2. Know that digital devices can communicate device to device and by using networks: local area network (LAN), wide area network (WAN), personal area network (PAN), tethering
  3. Know the types of wireless communication: Wi-Fi, Bluetooth, GPS, 3G, 4G, infra-red (IR), near-field communication (NFC)
  4. Know the differences between Wi-Fi and Bluetooth and when each is best used

Akọ̀wé Ẹ̀kọ́

A smartphone streaming music, a tablet printing to a nearby printer, and a school network connecting hundreds of computers all rely on digital communication. The method used depends on the distance, the amount of data, and whether wires are practical. Choosing the wrong method can mean slow transfers, dropped connections, or unnecessary cost.

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Oriire fun ipari ẹkọ lori Types Of Digital Communications. 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 type of network covers the largest geographical area? A) PAN B) LAN C) WAN D) WPAN Answer: C
  2. Which wireless technology has the shortest range? A) Wi-Fi B) Bluetooth C) 4G D) NFC Answer: D
  3. What does tethering allow a mobile device to do? A) Connect to a LAN using Ethernet B) Share its cellular data connection with another device C) Increase its battery life D) Store data on a satellite Answer: B
  4. Which is an advantage of wired communication over wireless? A) Greater portability B) Lower installation cost C) Faster and more reliable data transfer D) No physical equipment needed Answer: C
  5. A group of devices near one person, such as a phone, tablet and smartwatch, forms which type of network? A) LAN B) WAN C) PAN D) MAN 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

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