the relevance of the reinforcement in the teaching and learning of computer in junior secondary schools in Enugu State

Topics: Personal computer, Computer, Microprocessor Pages: 5 (2414 words) Published: September 19, 2014
Author, A. (date). Title of document [Format description]. Retrieved from http://xxxxxxxxx The in-text citation includes the author and date (Author, date), as with any other APA Style citation. More information

Publication Manual (6th ed., section 6.32, pp. 189–192; Chapter 7, Examples 29, 30, 54, 55, and 76, pp. 198–215) Author, A. (date). Title of document [Format description]. Retrieved from http://URL That format description in brackets is used only when the format is something out of the ordinary, such as a blog post or lecture notes; otherwise, it's not necessary. Some other example format descriptions are listed on page 186 of the Publication Manual.  

Examples of Online References
Here’s an example (a blog post) in which we have all four necessary pieces of information (also see Manual example #76): Freakonomics. (2010, October 29). E-ZPass is a life-saver (literally) [Blog post]. Retrieved from http://freakonomics.blogs.nytimes.com/2010/10/29/e-zpass-is-a-life-saver-literally/ Sometimes, however, one or more of these four pieces is missing, such as when there is no identifiable author or no date. You can download a pdf chart here that lists all the permutations of information that might occur with an online reference and shows how to adapt the reference. Here’s an example where no author is identified in this online news article: All 33 Chile miners freed in flawless rescue. (2010, October 13). Retrieved from http://www.msnbc.msn.com/id/39625809/ns/world_news-americas/ And here’s an example for a webpage where no date is identified: The College of William and Mary. (n.d.). College mission statement. Retrieved from http://www.wm.edu/about/administration/provost/mission/index.php We have also covered example references for tweets and Facebook updates, press releases, interviews, wikipedia articles, and artwork in other blog posts. Thanks for reading! Hardware

The hardware are the parts of the computer itself including the Central Processing Unit (CPU) and related microchips and micro-circuitry, keyboards, monitors, case and drives (hard, CD, DVD, solid-state (ssd), floppy, optical, tape, etc...). Other extra parts called peripheral components or devices include mouse, printers, modems, scanners, cameras and cards (sound, colour, video) etc... Together they are often referred to as a personal computer. Central Processing Unit - Though the term relates to a specific chip or the processor a CPU's performance is determined by the rest of the computer's circuitry and chips. Currently the Pentium chip or processor, made by Intel, is the most common CPU though there are many other companies that produce processors for personal computers. Examples are the CPU made by Motorola and AMD.

With faster processors the clock speed becomes more important. Compared to some of the first computers which operated at below 30 megahertz (MHz) the Pentium chips began at 75 MHz in the late 1990's. Speeds now exceed 3000+ MHz or 3 gigahertz (GHz) and different chip manufacturers use different measuring standards (check your local computer store for the latest speed). It depends on the circuit board that the chip is housed in, or the motherboard, as to whether you are able to upgrade to a faster chip. The motherboard contains the circuitry and connections that allow the various component to communicate with each other. Though there were many computers using many different processors previous to this I call the 80286 processor the advent of home computers as these were the processors that made computers available for the average person. Using a processor before the 286 involved learning a proprietary system and software. Most new software are being developed for the newest and fastest processors so it can be difficult to use an older computer system. Keyboard - The keyboard is used to type information into the computer or input information. There are many different keyboard layouts and sizes with the most common for Latin based...
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