At the end of the lesson the learners should be able to;-
- Define peripheral devices
- Understand the meaning of digitization, coding-decoding and compression
- understand how to convert analog to digital data
This unit introduces peripheral device which are connected to the computer. It mainly deals on what needs to be done to the data that flows between the processor and the Peripheral devices The peripherals include computer mouse, keyboard, image scanners, tape drives, microphones, loudspeakers, webcams, and digital cameras
- 5.1: Representation of digital and analog values - Sampling and Quantization
- This section introduces the learner to sampling and quantization. This is where signals are represented into horizontal and vertical values (axes).
- 5.2: Sound and Audio, Image and Graphics, Animation and Video
- The following sections describe various types of data that you might find, in addition to static graphics data, in multimedia files.
- 5.3: Coding and decoding multimedia systems
- This section introduces the learner to the fact that Multimedia data which is voluminous in nature needs to be coded and decoded so that it can be transmitted fast on the existing media
- 5.4: Unit 5 Summary
- This unit introduced the learner to the peripheral device that can be connected to the computer. It dealt on the conversions of analog to digital data. the different wave forms representing conversions of the analog to digital data were also introduced. Also the multimedia data and what needs to be done for it to be transmitted across networks. The peripherals include computer mouse, keyboard, image scanners, tape drives, microphones, loudspeakers, webcams, and digital cameras.