Do you Know????????

1. Andre Truong Trong Thi (1936-2005) was a Vietnamese French Engineer. He is considered to be the Father of the personal computer for creating the MICRAL N ( Micro Computer) in based on an Intel 8008 Processor in 1973.
2. ENIAC was very big. It weighed 30 tons and its size was roughly 2.4m x 0.9m x 30m. It consumed 160 KW of Electric power.
3. A microprocessor is a single chip that can do all the processing of a computer. The personal computers or micro computers used today also have the microprocessor inside them.
4. An integrated circuit (IC) is a small electronic device made out of a semiconductor material. The first integrated circuit was developed in the 1950s by Jack Kilby Texas Instruments and Robert Noyce of Fairchild Semiconductor.
5.  The file extension of sound files are .WAV
6. Speech recognition is the ability of Window XP to convert spoken words to written text.
7. Time is seen on the right hand side on the system Tray of the Taskbar on the Desktop. The Date/Time properties screen can also be opened by "double clicking" on the time shown on the system tray.
8. Check your HTML document in the web browser every time you make changes to it to find whether the changes made by you have taken the desired effect or not.
9. A pixel is the smallest lighted dot on the screen with which characters are formed. There are 72 pixels in an inch.  1 inch =  72 pixels.
10. You need to be at least 13 years old to be a member of the Facebook community.
11. The coordinates of a pixel are the numbers that tell you how for across and how far down that pixel lies on the screen.
12. It is not mandatory to give the color code in the PSET command. If you do not specify a color code, QBasic will give the output in white color.\
13. While creating a chart, always keep in mind the message you want to convy. We can make different types of charts using the same data.
14. The easy method to create a chart without using the chart wizard is to select the data and press F11 key on the keyboard.
15. In MS Excel, you can create absolute, relative or mixed references in a formula. You can easily change from one reference type to another without having to retype it by pressing F4.
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What is a PC?

What is a PC?

The letters 'PC' stand for 'personal computer' – that is, a computer that can fit on a single desk for use by ordinary people, as opposed to a huge mainframe or supercomputer.

Although the acronym technically refers to any such computer, it has come to mean the multi-purpose machines that usually run the Microsoft Windows operating system, as opposed to the Macintosh machines made by Apple.

Key benefits and features of the PC

PCs used to be known as 'IBM-compatibles' as they were based on systems built by the IBM Corporation. However, the machines went on to be made by so many other companies that the term fell out of use – in fact, IBM has completely stopped making PCs.
PCs are mainly identified by their use of the Windows operating system. An operating system is the background software that runs everything else on top of it. Windows is the best-selling 'OS' in the world.

Windows is not the only OS that PCs can use. Linux is a free 'open source' system that has been created by volunteers around the globe. It's very popular among the technically minded, but is unlikely to suit a beginner.
 
PCs are capable of many functions, including word processing, playing music, videos and games, accessing the internet, and much more.
 
PCs have a number of advantages over Apple Macs: They're generally cheaper, they have far more software available (especially games) and, as they're more popular, they tend to have fewer compatibility problems on the internet. They're also much more open to tinkering, if you're so inclined.
 
The PC's Achilles heel is its vulnerability to all sorts of viruses and malware. So far Apple Macintoshes have proved to be much more resilient against viruses and other threats. 

With a PC, you can't afford not to invest in antivirus programs and keep them up to date.

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