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Ans (2): Transistors

Transistors replaced vacuum tubes and ushered in the second generation of computers. The transistor was far superior to the vacuum tube, allowing computers to become smaller, faster, cheaper, more energy-efficient and more reliable than their first-generation predecessors.

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Ans (2): There is a comment associated with the cell

A red triangle in the upper-right corner of a cell indicates that a comment is in the cell. If you rest the mouse pointer over the triangle, you can view the text of the comment.

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Ans (3): MP8

The PNG, JPEG, WMF, EMF and GIF formats are most often used to display images on the Internet.

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Ans (2): Unique key

A primary key is a key in a relational database that is unique for each record. It is a unique identifier, such as a driver license number, telephone number or vehicle identification number (VIN).

Note: A relational database must always have one and only one primary key.

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Ans (2): organization domain

The domain name org is a generic top-level domain (gTLD) of the Domain Name System (DNS) used in the Internet. The name is truncated from organization.]

Note: The domain “.org” was one of the original top-level domains, [1] with com, us, edu, gov, mil and net, established in January 1985.

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Ans (1): Possession of a secret (Password)

One way or single factor authentication is the traditional security process that requires one of the following elements before granting access to the users. There are “something user have “(including keys or token cards) Something user know (including passwords) or something user are (including fingerprints, voiceprints or retinal scan like iris.

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Ans (1): Java

A web browser is a software application for retrieving, presenting and traversing information resources on the World Wide Web.

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Ans (2): An operating system

Kernel is a central component of an operating system which acts as an interface between the user applications and the hardware. It is also called as the heart of the operating system.

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Ans (4): Facebook

Google+ is an interest-based social network that is owned and operated by Google Inc. Facebook is another social network site.

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Ans (3): GPRS

The development of GPRS networks provides several advantages to GSM network operators. It allows to integrate the IP protocol, to the GSM network and consequently the TCP/IP protocol suite.

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Ans (4): Glass box testing

White Box testing deals with the internal logic and structure of the code. White Box testing is also called as structural, glass box, open box or clear box testing.

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Ans (2): Common Business

COBOL stands for Common Business Oriented Language. The US Department of Defense, in a conference, formed CODASYL (Conference on Data Systems Language) to develop a language for business data processing needs which is now known as COBOL.

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Ans (3): driver

A driver provides a software interface to hardware devices, enabling operating systems and other computer programs to access hardware functions without needing to know precise details of the hardware being used.

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Ans (5): Foreign

Foreign key is a field in one table that uniquely identifies a row of another table. In other words, a foreign key is a column or a combination of columns that is used to establish and enforce a link between two tables.

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Ans (4): JavaScript

JavaScript is a high level dynamic, un typed and interpreted programming language. It has been standardized in the ECMA Script language specification.