Computer Basics
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Q401.External cache memory is located between which two components?
Correct Answer: A
External cache memory (like L2 or L3 cache) is physically located between the CPU (microprocessor) and the main memory (RAM) to minimize access latency.
Q402.Which of the following computer components typically contains the most transistors?
Correct Answer: C
A modern microprocessor contains billions of microscopic transistors squeezed onto a single silicon chip to perform complex computations.
Q403.Plotter is an example of _______?
Correct Answer: A
A plotter is an output hardware device used to print large vector graphics and engineering blueprints using active pens.
Q404.A joystick is a(n) _____ device.
Correct Answer: C
A joystick is an input device consisting of a handheld stick that pivots on a base to report its angle or direction to games/simulations.
Q405.RAM is what type of storage?
Correct Answer: B
RAM (Random Access Memory) is classified as primary storage. It is ultra-fast, volatile main memory used directly by the CPU.
Q406.Quick Response (QR Code) reader is an example of ________?
Correct Answer: A
A QR Code reader is an input scanner that reads graphical codes and converts them into digital data to feed into the system.
Q407.Barcode reader is a device ____?
Correct Answer: A
A barcode scanner is an input hardware device that captures and reads information encoded inside printed black-and-white barcodes.
Q408.A fault in a computer program which prevents it from working correctly is known as?
Correct Answer: B
A flaw, error, or defect in a software program's code that causes unexpected behavior or failures is commonly called a 'bug'.
Q409.Keyboard of a computer system is ______?
Correct Answer: A
A computer keyboard is a physical, tactile input device, which classifies it as hardware.
Q410.Which of the following stores data or information temporarily and passes it on as directed by the control unit?
Correct Answer: B
Internal CPU registers store small amounts of data or instructions temporarily and pass them along under the direction of the Control Unit (CU).
Q411.What is the other name for a programmed chip?
Correct Answer: D
A Programmable Read-Only Memory (PROM) chip is also known as a programmed chip because it can be custom-written with data after manufacturing.
Q412.Which of the following are the two main components of the CPU?
Correct Answer: A
The two primary functional components of a Central Processing Unit (CPU) are the Control Unit (CU) and the Arithmetic Logic Unit (ALU).
Q413.What is the main function of the Control Bus in a computer system?
Correct Answer: C
The control bus is used by the CPU to transmit timing, execution commands, and synchronization control signals to other components.
Q414.All of the following are examples of input devices except?
Correct Answer: A
A printer is an output device (producing physical hard copies), whereas mice, scanners, and keyboards are input devices.
Q415.Interface used in DOS is called _____?
Correct Answer: A
DOS (Disk Operating System) is built on a text-based Command-Line Interface (CLI) where users type commands at a prompt.
Q416.A virtual table that that is constructed from other tables is called _____?
Correct Answer: C
A view is a dynamic virtual table in SQL constructed from a query over one or more physical database tables.
Q417.Hardware is best described as _____?
Correct Answer: B
Computer hardware refers to the physical, tangible parts of the system (such as circuits, keyboard, or monitor) that you can touch.
Q418.In an Entity-Relationship (E-R) diagram, a rectangle represents _____?
Correct Answer: C
In an Entity-Relationship (E-R) diagram, rectangles represent entities, ellipses represent attributes, and diamonds represent relationships.
Q419.Another term for Main Memory is ______?
Correct Answer: B
The main memory or primary storage of a computer represents RAM (Random Access Memory), which temporarily stores data and programs currently in use by the CPU.
Q420.An identifiable location in memory where data are kept is called _____?
Correct Answer: A
An address is a unique, identifiable location in computer memory used to store and retrieve data.