AQA A’Level SLR20 Data transmission basics
About this video
AQA Specification Reference
AS Level 3.9.1.1
A Level 4.9.1.1
In this video we take a look at some of the fundamentals of communication, including: Serial and Parallel transmission, Synchronous and Asynchronous transmission, Start and Stop bits.
Key questions:
- How can data be transmitted?
- What are the advantages of serial over parallel transmission?
- What is the difference between synchronous and asynchronous transmission?
00:00 Data transmission basics
00:10 Intro
00:15 Data transmission
00:34 Three factors to consider when transmitting data
00:58 Simplex transmission
01:23 Half-duplex transmission
01:46 Full-duplex transmission
02:08 Serial vs parallel transmission
02:35 Serial data transmission
02:44 Parallel data transmission
02:55 Serial vs parallel transmission continued
03:37 Parallel data transmission continued
04:02 Advantages in serial transmission
04:56 Synchronous and asynchronous transmission
06:04 Key questions
06:22 Outro
Last updated: 17.06.25
