3.1 Hardware
The hardware topic deals with a computer system consisting of input devices, output devices, a central processing unit and storage.The increasing tendency to develop hardware in modular units raises a range of social impacts and ethical issues such as the use of non-renewable natural resources, the global transportation of manufactured components and their eventual disposal by individuals, organizations and governments.
A computer user is planning to upgrade their current computer system to a newer model and must use their knowledge to:
• understand the specifications of the proposed new system
• evaluate other physical considerations that may influence the choice of the physical environment of
the proposed new system, such as ergonomics and other health-related issues
• suggest upgrades to the computer system to take advantage of improvements in components, such
as processing speed
• describe how the proper disposal of the old computer system can take place and whether the choice
of computer may be affected by the manufacturer’s policies on disposal.
The IT concepts I will be addressing in this topic are:
• Types of computers: personal digital assistant (PDA), laptop, desktop computer
• MAC address
• Motherboard
• Central processing unit (CPU), microprocessor, clock speed: for example, megahertz (MHz), gigahertz
(GHz), terahertz (THz)An explanation with follow each of the topics as well as captionned images to help one better visualize the term discussed.
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