System | MCQs

Explanation

Computer hardware includes the physical parts of a computer,

such as the case,

central processing unit,

monitor,

mouse,

keyboard,

computer data storage,

graphics card,

sound card,

speakers and motherboard.

Explanation

CPU Menas central processing unit,

CPU is a principal part of any digital computer system, generally composed of the main memory, control unit, and arithmetic-logic unit.

Explanation

The Operating System (OS) is the core component that manages hardware and software resources.

It acts as the bridge between user and hardware, enabling all system functions.

Explanation

File Manager helps users manage files and folders (copy, move, delete, etc.).

It is a utility program that supports the operating system's functionality.

Explanation

Devices like mouse, printer, and network adapters need specific drivers to communicate with the operating system.

Without drivers, the OS can't recognize or control these devices properly.

Explanation

Expansion slots like AGP (Accelerated Graphics Port), PCI (Peripheral Component Interconnect), and ISA (Industry Standard Architecture) are used to add extra hardware (graphics cards, sound cards, etc.) to a computer.

These slots enhance the computer’s capabilities by allowing external components to be connected directly to the motherboard.

Explanation

The Control Unit (CU) directs and coordinates most operations of the computer by managing the flow of data and instructions.

It tells the ALU, memory, and I/O devices how to respond to instructions.

Explanation

Data acquisition refers to the process of collecting data, not a primary objective of a database.

The main objectives of a database include Data Independence, Data Integration, and Data Integrity, which focus on organizing, managing, and ensuring the accuracy of data.

Explanation

The ALU is the main processing unit of a CPU, responsible for performing all arithmetic and logical operations.

It works alongside other components like registers and cache to execute instructions efficiently.

Explanation

A compiler is system software that translates the entire high-level language source code into machine-level object code at once.

It checks for errors during translation and produces a separate executable file.