Computer MCQs for Competitive Exams

The correct answer is Legacy system because this technical computing descriptor designates an outdated computer architecture, software package, or hardware format that remains in operation.

• Legacy system: This is the correct choice. Even if a legacy setup is unsatisfactory or falls short of modern efficiency benchmarks, organizations frequently keep it running because it still performs critical functions, or because the financial and logistical costs of replacing it are too high.
• Incorrect Options:
  • Ancient system / Historical system / Age old system: These are incorrect. These are casual, non-technical adjectives rather than formal IT architecture classifications.

The correct answer is Latin because the modern word evolved directly from a historical Latin verb signifying computational aggregation.

• Latin: This is the correct choice. The word originates from the Latin verb computare, which is a combination of 'com' (together) and 'putare' (to settle, prune, or think). It literally means 'to calculate, reckon, or count together'. It entered the English language in the 17th century to describe a person who performed mathematical calculations before transitioning to describe automated machinery.
• Incorrect Options:
  • German / French / Arabic: These are incorrect. While these languages possess distinct etymological histories for computing machinery, they do not represent the root origin of this specific noun.

The correct answer is 1024 mb because digital storage measurements scale based on the binary system where each successive unit is a multiple of simple_quiz^{10}$.

• 1024 mb: This is the correct choice. In standard computing notation, 1 Gigabyte (GB) equals 1024 Megabytes (MB). This binary prefix system means data climbs from bits to bytes (text{ bits} = 1text{ byte}$), then to Kilobytes (1024 B), Megabytes (1024 kB), and finally Gigabytes.
• Incorrect Options:
  • 1024 bits: This is incorrect, as this value equals a fraction of a Kilobyte.
  • 1000 Bytes: This is incorrect, as this closely mirrors a decimal Kilobyte rather than a Gigabyte.
  • 1024 kB: This is incorrect, as 1024 Kilobytes equals 1 Megabyte.

The correct answer is Wide Area Network because this network configuration covers large geographic boundaries, linking regional or global computing infrastructure.

• Wide Area Network: This is the correct choice. A WAN connects multiple smaller networks, such as Local Area Networks (LANs) or Metropolitan Area Networks (MANs). The internet itself is the largest and most widely recognized example of a public WAN.
• Incorrect Options:
  • Wireless Area Network: This is incorrect. While wireless networks exist, they are classified under WLAN (Wireless Local Area Network) or WPAN (Wireless Personal Area Network).
  • Wap Area Network / Wide Array Net: These are fabricated terms with no structural standing in networking architecture.

The correct answer is folders because directory architectures use folders to group related assets systematically within a computer storage drive.

• folders: This is the correct choice. Operating systems utilize a graphical metaphor of file cabinets and paper folders. Creating individual folders lets users keep data isolated, preventing chaotic accumulation and speeding up navigation.
• Incorrect Options:
  • archives: This is incorrect. An archive is a collection of records compressed into a single package for backup or historical protection rather than general organization.
  • indexes / lists: These are incorrect. An index or list helps search or locate files, but they do not act as the physical container holding the files.

The correct answer is spam because this term globally designates unsolicited, unwanted, or junk messages sent in bulk over electronic communication networks.

• spam: This is the correct choice. In computer science and network architecture, email spam refers to the practice of distributing identical or highly similar advertising, promotional, or malicious messages to thousands of recipients simultaneously without their explicit prior consent.
• Incorrect Options:
  • spoof: This is incorrect. Email spoofing is a distinct cyber threat mechanism where the sender artificially manipulates packet headers so that an email appears to originate from a known, trusted source instead of the actual sender.
  • sniffer script: This is incorrect. A packet sniffer or script is an active network monitoring tool or software program designed to intercept, log, and analyze real-time data traffic flowing across a network interface.
  • spool: This is incorrect. Spooling (Simultaneous Peripheral Operations On-Line) is an operating system caching technique where document data is temporarily held in memory or storage until a device, like a printer, is ready to process it.

The correct answer is Data in ROM is non-volatile, meaning it remains even without power. because ROM retains critical system instructions even when the hardware loses power completely.

• Data in ROM is non-volatile, meaning it remains even without power.: This is the correct choice. Your original parameters had truncated filler text for Option 2 and the correct answer field ('Data in'). ROM holds the crucial bootstrap loader firmware (like the BIOS/UEFI) required to fire up the system hardware components. It does not lose data when electricity stops flowing, unlike volatile RAM.
• Incorrect Options:
  • ROM information can be easily updated: This is incorrect. ROM stands for Read-Only Memory; changing its data requires specific, specialized procedures like flashing.
  • ROM provides very large amounts of inexpensive data storage: This is incorrect. ROM modules are small and reserved for critical firmware rather than mass file storage.

The IBM 1401 was a prominent second-generation computer, introduced in 1959, known for utilizing transistors instead of vacuum tubes.

The correct answer is Dennis Ritchie because this legendary computer scientist created the C language at Bell Labs in the early 1970s.

• Dennis Ritchie: This is the correct choice. Your original key listed the incomplete string 'Dennis M.'. Dennis Ritchie co-developed Unix and invented the C programming language. C became the baseline foundation for most modern operating systems, browsers, and compiler designs.
• Incorrect Options:
  • Niklaus Wirth: This is incorrect. He is the distinguished designer behind languages like Pascal.
  • Seymour Cray: This is incorrect. He was an industrial computing pioneer celebrated for engineering early supercomputers.
  • Donald Knuth: This is incorrect. He is a legendary computer scientist famed for analyzing algorithms and publishing The Art of Computer Programming.

The correct answer is Bug because this software engineering term explicitly identifies an error, flaw, or fault in source code that leads to unintended behavior.

• Bug: This is the correct choice. Programming bugs arise from syntax mistakes, logical oversights, or structural loop anomalies. Resolving these issues involves running test cases and debugging the codebase.
• Incorrect Options:
  • Boot: This is incorrect. Booting is the initialization phase a computer goes through to load its operating system into memory.
  • Strap / Biff: These are incorrect. These are non-applicable distractors with no standing in runtime diagnostics terminology.

The correct answer is 8 bits because a byte is standardly defined as a single cohesive unit of memory allocation comprising eight individual bits.

• 8 bits: This is the correct choice. An 8-bit architecture allows a single byte to express simple_quiz^8$ (256) unique binary combinations, which is sufficient to encode a basic alphanumeric symbol under standard character maps.
• Incorrect Options:
  • 4 bits: This is incorrect. A 4-bit block is specifically termed a 'nibble' in data transmission frameworks.