By SAJJAD SARWAR Wednesday, 2 November 2011 0 comments

1. The system bus and I/O bus carry four different types of signals throughout the computer. Which of the following are the signals? (Choose all that apply.) a. Data b. Power c. Control d. Adapters e. Address 2. Which of the following are considered expansion slots? (Choose all[...]

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By SAJJAD SARWAR 0 comments

If you’ve never opened a computer before, it can be pretty overwhelming. This section helps you get started with practical advice on how to ■ Open the case ■ Protect your system against electrostatic discharge (ESD) ■ Connect internal and external data cables ■ Install a PCI card[...]

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By SAJJAD SARWAR Saturday, 29 October 2011 0 comments

What makes a computer a computer? After all, some furniture stores put 3D cardboard facsimile computers on computer desks so you can see that the furniture really will hold a computer. But, what is it about a real computer that makes it different than the cardboard phony? Real[...]

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By SAJJAD SARWAR 0 comments

Test yourself online choosing the following MCQs for Hardware IT essential Questions.... 1. You are working on a computer. Which of the following are considered essential? (Choose all correct answers.) a. Motherboard b. CPU c. Memory d. Video card e. A scanner 2. Which of the following devices[...]

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By SAJJAD SARWAR Tuesday, 25 October 2011 0 comments

Data is constantly being transferred within a computer and between computers. But how much data, and how fast is it being computed? Data transfer is known as bandwidth, which specifies how much data is being sent per second. The speed at which data is computed is known as[...]

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By SAJJAD SARWAR 0 comments

Although a byte represents the basic “building block” of storage and RAM calculation, most measurements are better performed with multiples of a byte. All calculations of the capacity of RAM and storage are done in bits and bytes. Eight bits is equal to one byte. Measurement    [...]

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By SAJJAD SARWAR 0 comments

Since the development of the first personal computers (PCs) more than 30 years ago, many terms such as bits, bytes, decimal, binary, and hexadecimal have become part of common language. However, these terms are not always used correctly. This section helps you understand what these terms and numbering[...]

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