Showing 441–460 of 653

Q441.What is the control unit's function in the CPU?

Easy
A To store program instruction
B To perform logic operations
C To decode program instruction
D None of these
Hardware PPSC

Correct Answer: C

The Control Unit (CU) fetches, decodes, and translates program instructions from memory, orchestrating execution across other CPU registers and units.

Q442.Processors of all computers, whether micro, mini or mainframe must have _____?

Easy
A Control unit
B ALU
C Primary Storage
D All of these
Hardware PPSC

Correct Answer: D

Every functional computer processor architecture must contain a Control Unit (to direct flow), an ALU (for calculations), and access to primary storage (RAM) to hold active data.

Q443.Antivirus, WinZip, WinRAR and disk defragmenter are the examples of ________?

Easy
A Language Translator
B Application software
C Utility programs
D None of these
Software PPSC

Correct Answer: C

Utility programs are system software components designed to analyze, configure, optimize, or maintain a computer system, such as backup, compression, or defragmentation tools.

Q444.Which one of the following is the bridge between the user and hardware. It is also called the Resource Manager?

Easy
A Operation System
B Application Software
C Hardware and Software
D None of these
Hardware PPSC

Correct Answer: A

The Operating System (OS) is the intermediary interface between user software and hardware, acting as a resource manager to coordinate hardware allocations (CPU, memory, files).

Q445.Computer's performance is influenced by _____?

Easy
A Bus width
B Speed of system clock
C Memory access time
D All of these
Hardware PPSC

Correct Answer: D

A computer system's speed and throughput depend directly on the processor clock speed, the width of the system bus (transfer rate), and memory latency.

Q446.Which option is used to copy formatting from one place and apply it to another?

Easy
A Copy
B Copy formatter
C Format painter
D Formatting
Hardware PPSC

Correct Answer: C

The Format Painter tool allows users to copy all of the formatting (font, size, color, alignments) of selected text or objects and apply it elsewhere.

Q447.All hardware devices are attached directly or indirectly with ______?

Easy
A Motherboard
B CPU
C Keyboard
D None of these
Hardware PPSC

Correct Answer: A

The Motherboard serves as the primary printed circuit board that directly or indirectly physically connects and links all computer hardware components.

Q448.What type of device is a computer mouse?

Easy
A Input
B Output
C Data
D None of these
Hardware PPSC

Correct Answer: A

A computer mouse is a pointing, handheld hardware input device used to send spatial coordinates and selection inputs to a computer.

Q449.In Word, the default alignment for paragraphs is_________?

Easy
A left-aligned, or flush margins at the left edge and uneven edges at the right edge
B justified, or flush margins at both the left and right edges
C centered, or equidistant from both the left edge and the right edge
D right-aligned, or flush margins at the right edge and uneven edges at the left edge
Hardware PPSC

Correct Answer: A

By default, Microsoft Word applies left-alignment (flush left margin with a ragged right margin) to newly typed paragraphs.

Q450.If a person deliberately damages data or deletes data from a computer, then this is called ______?

Easy
A Data loss
B Sabotage
C Hard drive crash
D None of these
Hardware PPSC

Correct Answer: B

Sabotage refers to the intentional, malicious destruction, damage, or deletion of computer data, hardware, or network services.

Q451.Data is transferred from one place to another through ______?

Easy
A Transmission media
B Mouse
C Storage device
D None of these
Hardware PPSC

Correct Answer: A

Transmission media (cables, optical fibers, or wireless radio frequencies) provides the physical pathway to transfer data across systems.

Q452.A set of _____ used to write a computer program.

Easy
A Codes
B Symbols
C Words
D None of these
Hardware PPSC

Correct Answer: A

A computer program consists of a structured set of instructions, collectively referred to as codes, written using programming languages.

Q453.The selection tools are used to crop/cut an area from a shape or a/an _____?

Easy
A Screen
B Image
C Text
D None of these
Hardware PPSC

Correct Answer: B

In graphic editing software, selection tools isolate parts of an image or shape so they can be cut, cropped, or formatted independently.

Q454.Which modules is not part of C programming?

Easy
A Editor
B Linker
C Converter
D Compiler
Hardware PPSC

Correct Answer: C

A converter is not a standard program compilation component; C relies on an Editor (writing), Compiler (object generation), and Linker (executable generation).

Q455.Which are special non-printed character used to control printing on the output device?

Easy
A Escape sequences
B Characters
C Format sequences
D None of these
Hardware PPSC

Correct Answer: A

Escape sequences are special non-printing character sequences (beginning with backslash) used to control formatting on display or print outputs.

Q456.Virtual memory typically located on/in ____?

Easy
A RAM
B CPU
C Flash card
D Hard drive
Hardware PPSC

Correct Answer: D

Virtual memory is a resource allocation technique that utilizes partition space or files directly on the hard drive or solid-state drive.

Q457.Which is a chip that can the erased and reprogrammed on the motherboard?

Easy
A EEPROM
B EPROM
C PROM
D None of these
Hardware PPSC

Correct Answer: A

EEPROM (Electrically Erasable Programmable Read-Only Memory) can be electrically erased and reprogrammed byte-by-byte while installed.

Q458.The operation of arithmetic logic unit is directed by _____?

Easy
A Control Unit
B ALU
C Memory Unit
D None of these
Hardware PPSC

Correct Answer: A

The Control Unit (CU) coordinates and directs the data-processing operations of the Arithmetic Logic Unit (ALU).

Q459.CPU includes all of the following components expect?

Easy
A ALU
B CU
C Register
D Primary Storage
Hardware PPSC

Correct Answer: D

The CPU contains the ALU, Control Unit, and high-speed registers, but primary storage (RAM/ROM) is external to the core processor chip.

Q460.Which is a small memory device available in the CPU to store data temporarily?

Easy
A ALU
B CU
C Register
D None of these
Hardware PPSC

Correct Answer: C

Registers are tiny, ultra-high-speed memory storage cells integrated directly inside the CPU to hold temporary values.