1 Kilobyte (KB) = 1.024 bytes. The correct answer is D.

A browser is a software to connect to the Internet (World Wide Web) and display Web pages.

In general, an office suite includes the following application software:
• A word processor
• A spreadsheet application
• A presentation software

A device driver is a system software that operates or controls a particular hardware device (e.g., graphic card, printer, scanner, etc.) that is connected to a computer. It allows a computer to communicate with these internal or external peripheral devices.

Applications software (also called end-user programs) include such things as database programs, word processors, Web browsers, spreadsheets, accounting applications, media players, photo editors and games.

Data can be grouped as qualitative data and quantitative data. Quantitative data can be referred as data in numerical form whereas qualitative data can be referred as data different than numerical form. A quantitative or numeric data can be continuous or discrete. A continuous data can be any value from the specified range. A discrete data can be any one of the specified discrete numerical values.

Some of the topics in data management are:

• Data Quality
• Data Security
• Database Management
• Data Warehousing
• Date Architecture
• Reporting& Document Management
• Data Definition
• Data Integration
• Metadata& Master Data Management

The correct option is B.

In the “store/retrieve step”, the process of storing the data and retrieving the previously recorded data or information for further Storage devices are used in computers to store the data. There are various types of storage devices. Some examples are random access memory (RAM), read only memory (ROM) and cache as primary storage, hard disk drive as secondary storage, magnetic tape and optical disk as tertiary storage, USB flash drive and memory card as offline storage. The correct answer is Choice A.

A firewall is a protective system that lies between a computer network and the Internet. C is the correct answer.

The disadvantages of optical fibers are expensiveness and difficulty of installation and maintenance. E is the correct answer.

Metadata is generally referred as data about other data or catalog for a data. It describes, identifies, explains, manages, and uses a data resource. Metadata can be grouped as descriptive, structural and administrative metadata. Descriptive metadata identifies a data resource. Administrative metadata defines the ways of managing a data resource. Structural metadata describes relationships between parts of a composite object. Metadata can generally be stored in various storage structures such as a field of relational database’s table, XML files, RDF models. Therefore, the correct option is D.

The fourth generation computers used Very Large Scale Integrated (VLSI) circuits. Hundreds or even thousands of integrated circuits were built onto a single silicon chip to form a microprocessor.

Application software may consist of a single program, such as a Microsoft’s notepad or MacOS’sTextEdit for writing and editing simple text. It may also consist of a collection of programs, often called a software package, which work together to accomplish a particular task, such as an office suite package.

In information technology, application software is a computer program designed to help people perform an activity.

An application software differs from an operating system (which runs a computer), a utility (which performs maintenance or general-purpose chores), and a programming tool (with which computer programs are created).

The correct answer is D. 

Application software is end-user oriented and high-level. The application software is designed to perform a group of correlated tasks for the sake of the end user. Applications software (also called end-user programs) include such things as database programs, word processors, Web browsers, spreadsheets, accounting applications, media players, photo editors and games. Therefore, the correct answer is E.

DBMS stands for database management system, and Oracle, DB2, SQL Server and MySQL are all various DBMS products. The physical specifications and therefore physical design of the database may differ from product to product. The correct answer is A.

Process scheduling is when the operating system optimally decides which processes will use the CPU and for how long. It tries to take full advantage of the CPU, and the OS schedules and coordinates running processes so that resources are not wasted.

A spreadsheet programs, such as Microsoft excel, is used for reviewing and editing spreadsheets. Spreadsheets can be thought of tables filled with data in the form of numbers, dates, strings etc. Spreadsheet programs are powerful tools for getting meaning out of raw data. It helps to discovers trends and patterns using data bars, spark lines, color coding, and icons. Even helps summarize and illustrate insights by charts and graphs. The correct answer is C.

System Software is 

• Close to system
• Fast in speed 
• Difficult to design 
• Difficult to understand
• Less interactive 
• Smaller in size 
• Difficult to manipulate 
• Generally written in low-level language.

The correct answer is B. 

The Internet is the most well-known example of a wide area network. Thus, the correct answer is A.

IBM introduced the first online reservation system, SABRE (Semi-automated Business Research Environment) in 1960 after George Stibitz performed the first remote computation by using a teletype to send commands to the Complex Number Computer in New York in 1940. Therefore, the correct option is B.