Week 5: Clear - System Unit of a PC

Chapter four covers different units and processes of key components that system units like a personal computer use to properly function. The book does an excellent job of explaining each part of a PC and what role that particular part plays in the functioning of the system unit. All parts within a PC intertwine and they need each other for the computer to function as intended. The most important part of a PC is the CPU or the central processing unit. The two most popular CPU manufacturers are Intel(www.intel.com) and AMD (www.amd.com) which have been competing for market share for the past few years. The CPU interprets and carries out the basic instructions that operate a computer. Another key component of a PC is the motherboard. The mother board is the main circuit board, this is where all the key components are including the CPU, memory, graphics card and sound card. Each motherboard is designed for a specific type of CPU, thus a motherboard made for an Intel CPU can not used a AMD CPU.

Memory is also essential to the operation of a PC, the memory consists of electronic components that store instructions waiting to be executed by the processor. The memory stores operating systems like Windows, application programs like Excel or Powerpoint and the data being processed by the application programs and resulting information. When individuals discuss memory, they usually are referring to RAM or main memory. The CPU and other main processing units require RAM to properly work and help start the operating system. Several types of RAM are available including, DRAM, SRAM and a newer type of RAM called MRAM. To help power all these components, a power supply must be included with the PC. A power supply is the component of the system unit that converts the wall outlet AC power into DC power. Other key components of a PC include the hard drive, graphics card, sound card, and different ports all that help make a PC as we know it today.

This is important in a business environment because it teaches individuals the technical details of the equipment they are using. Thus, if an issues arises or a part needs to be replaced, they can do it themselves and not need a technician which ultimately saves money for the company in the long run. Users can also upgrade equipment by themselves with the proper knowledge thus leading them to a more productive PC and more efficient time spent at work.