Cabling – Input and output devices need to be connected to the processor using appropriate cabling to an appropriate port or alternatively they can be configured as a wireless device. Coaxial cable is a type of electrical cable that has an inner conductor surrounded by a tubular insulating layer, surrounded by a tubular conducting shield. Optical cabling is commonly used in audio equipment where it transfers a digital audio stream from components such as DVD or CD player to an AV receiver. Twisted pair cabling is a type of wiring in which two conductors of a single circuit are twisted together to help cancel out electromagnetic interference from external sources.
Backing storage:
Types of backing storage – Primary storage is the memory of the computer whilst secondary storage is a backing store that remains within a computer and offers increased capacity than the processor provides. Tertiary storage is designed for transfer to another computer or archiving so it needs to be on a portable medium such as a flash memory card. Flash memory cards are commonly used in digital cameras and store photos until they are uploaded onto a computer or are printed. Another form of backing storage is a USB pen drive is used to transfer files…show more content… With the improved capacity and portability of these drives, it is possible to enjoy the easier transfer of large amounts of data.
Performance factors – There are a number of factors that need to be taken into account when selecting a storage device, for example, maximum capacity. It is important to know how much data the device can hold as some devices may not have enough space for your needs. Another factor is how fast the data transfers as some devices are much quicker and more efficient than other
