Computer MCQs for Competitive Exams

COBOL stands for Common Business-Oriented Language. It is one of the oldest high-level programming languages, originally designed in the late 1950s specifically for business, administrative, and finance systems for companies and governments. One of its defining characteristics is its English-like syntax, which was intentionally created to make the code more readable and easier for non-programmers—such as business analysts or managers—to understand and maintain. Despite its age, COBOL remains remarkably resilient and is still heavily relied upon today, particularly in large-scale legacy mainframe systems within the banking, insurance, and retail sectors. Its ability to handle massive volumes of transactional data with high precision makes it a cornerstone of global financial infrastructure. While newer, more modern languages have become popular for web and mobile development, COBOL continues to be maintained and updated, proving its enduring utility in critical, high-stakes computational environments worldwide.

In older versions of MS Word, the "Format" menu contained options for changing typeface, font styles, paragraph settings, and other document formatting attributes.

LCD is an acronym for Liquid Crystal Display, a flat-panel display technology commonly used in screens for televisions, computers, and mobile devices.

A Microsoft Word template stores various elements like graphics, text, styles, macros, and customized command settings, providing a consistent document structure.

ISDN stands for Integrated Services Digital Network, a set of communication standards for simultaneous digital transmission of voice, video, data, and other network services.

In Microsoft Word, the 'Drop Cap' feature allows a maximum of 10 lines to be dropped for the initial letter of a paragraph.

The Ctrl+; shortcut key in Microsoft Excel is specifically used to quickly insert the current date into the active cell.

In Microsoft Word's Mail Merge feature, the mailing list containing recipient information is commonly referred to as the data source.

The name "YAHOO" is a famous backronym, which stands for "Yet Another Hierarchical Officious Oracle." The founders of Yahoo, Jerry Yang and David Filo, chose this name in 1994, reportedly as a play on the term "yahoo" found in Jonathan Swift's "Gulliver's Travels," which described a group of uncouth and primitive characters. By adding the acronym, they cleverly described their directory-based web search engine—it was "Yet Another" tool, "Hierarchical" because it was organized by category, "Officious" referring to the helpful, albeit over-eager nature of the service, and "Oracle" because it was intended to be a source of vast information. This unique branding played a significant role in the company's identity during the early growth of the internet, helping it stand out in a crowded field of search engines that were just beginning to map the chaotic landscape of the World Wide Web.

In spreadsheet programs like Excel, CTRL+D is the shortcut key used to "Fill Down," copying content from the cell above.

SQL stands for Structured Query Language, a domain-specific language used for managing and manipulating data within relational database management systems.

WWWW stands for World Wide Web Worm, which was one of the earliest search engines developed for the World Wide Web in 1994.

The World Wide Web was conceived and developed at CERN, the European Organization for Nuclear Research, by Tim Berners-Lee.

UTP is an acronym for Unshielded Twisted Pair, a common type of copper cable used in local area networks for data transmission.

In Microsoft Excel, pressing Shift + F11 is the standard shortcut key used to quickly insert a new, blank worksheet into the current workbook.

SATA is an acronym for Serial Advanced Technology Attachment, a standard interface for connecting storage devices like hard drives and SSDs to a computer's motherboard.

A worm is a standalone malware computer program that replicates itself to spread to other computers, often without human interaction.

Sorting is the process of arranging data in a specific logical sequence, such as alphabetical, numerical, or chronological order, for better organization and retrieval.

Cracking specifically refers to the act of electronic trespassing or criminal hacking, often involving unauthorized access to computer systems.

The Abacus is widely recognized as the first mechanical calculator, used for performing arithmetic operations through the manipulation of beads on rods.

Application software is specifically designed to perform particular tasks or functions that directly address the individual needs and requirements of users.

USB stands for Universal Serial Bus, a standard interface that allows connection, communication, and power supply between computers and electronic devices.

Hardware refers to the physical components of a computer system, including all tangible parts like the CPU, memory, and peripherals.

In Microsoft Word, the keyboard shortcut Ctrl + Spacebar is specifically designed to remove all manual character formatting from selected text. Character formatting includes attributes like font style, size, bold, italics, underline, color, and text effects. When you press this combination, Word instantly strips away these applied styles and reverts the selected text to the default font and paragraph formatting defined by the underlying style (usually "Normal"). This feature is highly efficient for "cleaning up" text copied from other sources (such as web pages or different documents) that may contain conflicting or unwanted formatting. By normalizing the text to the document's standard appearance, users can ensure consistency across their files without having to manually clear each attribute one by one through the formatting ribbon or dialog boxes.

Input devices convert human-understandable data and instructions into a digital format that a computer can effectively process and interpret.