Computer Architecture
69 Questions
Computer Architecture MCQs — Practice & Prepare
✅ Correct answer: All of these
A computer's basic functions include processing data, storing data, moving data between components, and controlling the overall sequence of operations — together, these four functions define what a computer fundamentally does.
✅ Correct answer: Computer architecture
Computer architecture — the design and organization of a computer's internal components, instruction set, and how they work together — forms the essential backbone for building any successful, functional computer system.
✅ Correct answer: 1970
The first formal computer architecture (associated with the influential IBM System/360 design principles) was introduced in 1970, marking a foundational moment in how computer systems were systematically designed.
✅ Correct answer: is the container that houses electronic components
The system unit is the physical container (case) that houses a computer's core electronic components — including the motherboard, CPU, and memory — protecting them and providing the framework the computer is built around.
5
Which of the following is metal or plastic case that holds all the physical parts of the computer?
✅ Correct answer: System unit
The system unit is the metal or plastic case that holds all the physical/electronic parts of a computer, such as the motherboard, CPU, power supply, and drives.
✅ Correct answer: System unit
The components that process data — primarily the CPU and its supporting circuitry — are located inside the system unit, the case that houses a computer's central processing hardware.
✅ Correct answer: number of keys in the keyboard
The number of keys on a keyboard has no effect on a computer's actual processing performance; it only affects usability for typing, unlike factors such as clock speed, core count, and video memory, which directly impact performance.
✅ Correct answer: address
The specific location of a particular piece of data in memory is called its address, functioning much like a house number that identifies exactly where information is stored.
✅ Correct answer: UPS
A mouse, while a very common and useful input device, is not considered an integral (absolutely essential) part of a computer — a computer can technically still function for many purposes without one, unlike the CPU or monitor.
✅ Correct answer: UPS
A UPS (Uninterruptible Power Supply) not only protects a computer from power surges but also provides temporary battery backup power during outages, giving users time to safely save work and shut down.
✅ Correct answer: All of these
Data, programs, commands, and user responses can all be considered types of input, since input broadly refers to anything fed into a computer system for processing.
✅ Correct answer: acceptable
The input unit converts data entered by the user into a form that is acceptable/understandable by the computer, since raw human input (like typed characters) must be translated into a machine-compatible format.
✅ Correct answer: Output
The output unit is responsible for sending the processed results back to the user, in a human-readable form such as a screen display or printed document.
✅ Correct answer: All of these
Output devices include plotters, printers, and monitors — all hardware used to present a computer's processed results to the user in visual or physical form.
✅ Correct answer: input
An input device is any device that provides data/information to be sent to the CPU for processing — examples include a keyboard, mouse, or scanner.
✅ Correct answer: CPU
The CPU (Central Processing Unit) is the component required to process data into meaningful information, and it is built from integrated circuits that perform the necessary calculations and logic operations.
✅ Correct answer: CPU chip
The computer performs addition and comparison operations within the CPU chip, specifically inside the arithmetic logic unit (ALU), which handles all arithmetic and logical operations.
✅ Correct answer: CPU
The CPU (Central Processing Unit) is often called the 'brain' of the computer because it carries out instructions, performs calculations, and controls the overall operation of the entire system.
✅ Correct answer: silica
CPU chips are partially made of silica (silicon), a semiconductor material that allows the precise electrical switching needed to build the millions (or billions) of transistors packed into a modern processor.
✅ Correct answer: Both A and B
The main job of a CPU is both to carry out program instructions and to process data and information — these two functions work together as the CPU executes a program step by step.