Computer — All MCQs

4795 questions available

Showing 3261–3280 of 4795

Q3261.IC are classified on the basis of?

Easy
A Manufacturing company.
B Type of computer.
C Number of transistors.
D None of these
General MCQs PPSC

Correct Answer: C

Integrated Circuits (ICs) are classified (like SSI, MSI, LSI, VLSI) based on the number of transistors packed onto the chip.

Q3262.Computer system that is old and perhaps not satisfactory is referred to as?

Easy
A Ancient system
B Historical system
C Age old system
D Legacy system
General MCQs PPSC

Correct Answer: D

A legacy system refers to an outdated computer system, software, or technology that is still in use but is no longer fully satisfactory.

Q3263.A fault in a computer program which prevents it from working correctly is known as?

Easy
A Boot
B Bug
C Biff
D Strap
Computer Basics PPSC

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'.

Q3264.Keyboard of a computer system is ______?

Easy
A Hardware
B Software
C Firmware
D None of these
Computer Basics PPSC

Correct Answer: A

A computer keyboard is a physical, tactile input device, which classifies it as hardware.

Q3265.Which key is used to display the print dialog box in MS Excel?

Easy
A Ctrl+U
B Ctrl+P
C Ctrl+O
D Ctrl+G
MS Excel Shortcut Keys PPSC

Correct Answer: B

Ctrl + P opens the print dialog box or print menu in Microsoft Excel and other MS Office applications.

Q3266.The speed of a processor (microprocessor) is measured in ______?

Easy
A Pixels
B Hertz
C Megabytes
D None of these
General MCQs PPSC

Correct Answer: B

Processor clock speed is measured in Hertz (specifically Megahertz or Gigahertz), indicating the cycles per second it can execute.

Q3267.What is the name of the artificial intelligence company of Elon Musk launched in July 2023?

Easy
A xAI
B Meta
C Giga
D None of these
Computer Terminology PPSC

Correct Answer: A

Elon Musk launched xAI in July 2023 to develop advanced artificial intelligence models, famously releasing the Grok chatbot.

Q3268.Which of the following stores data or information temporarily and passes it on as directed by the control unit?

Easy
A Address
B Register
C Number
D Memory
Computer Basics PPSC

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).

Q3269.What is the other name for a programmed chip?

Easy
A RAM
B ROM
C LSIC
D PROM
Computer Basics PPSC

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.

Q3270.Which language does MS-Word use to create Macros?

Easy
A Visual C++
B Visual Java
C Visual Basic
D None of the above
Computer Terminology PPSC

Correct Answer: C

Microsoft Word (and the entire MS Office suite) uses Visual Basic for Applications (VBA) to record, write, and run macros.

Q3271.Which of the following are the two main components of the CPU?

Easy
A Control Unit and ALU
B Control Unit and Registers
C Registers and Main Memory
D None of these
Computer Basics PPSC

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).

Q3272.Fiber optics is _____?

Easy
A Wireless
B Cabling
C Both A and B
D
General MCQs PPSC

Correct Answer: B

Fiber optics represents a high-speed wired cabling technology that transmits data as modulated light pulses through glass/plastic fibers.

Q3273.The shortcut key to close the currently opened document in Microsoft Word is ______?

Easy
A Ctrl + T
B Ctrl + D
C Ctrl + W
D None of these
MS Word Shortcut Keys PPSC

Correct Answer: C

In MS Word, pressing Ctrl + W closes the currently active document window without exiting the entire application.

Q3274.Which connection type is commonly used for an internet cable?

Easy
A Ethernet
B HDMI
C USB
D VGA
Internet & Web PPSC

Correct Answer: A

Ethernet cables (using RJ-45 connectors) are the standard physical connection medium used to link devices to routers, switches, and networks.

Q3275.Which of the following is a valid output statement in C language?

Easy
A display("Hello");
B output("Hello");
C print("Hello");
D printf("Hello");
Computer Networks PPSC

Correct Answer: D

The standard output library function in C to write formatted text to the screen is printf(), which is declared in the <stdio.h> header file.

Q3276.What is the main function of the Control Bus in a computer system?

Easy
A Transfer data
B Perform arithmetic
C Transmit commands and control signals
D Store memory
Computer Basics PPSC

Correct Answer: C

The control bus is used by the CPU to transmit timing, execution commands, and synchronization control signals to other components.

Q3277.In Flutter, the Scaffold() widget is typically used within which function?

Easy
A initState()
B dispose()
C build()
D main()
General MCQs PPSC

Correct Answer: C

In Flutter development, the Scaffold() layout widget is returned within the widget's build() method to establish a structuralMaterial layout.

Q3278.Where are table names and field attributes stored in a database management system?

Easy
A Table Datasheet view
B Data dictionary
C Form
D None of these
Computer Terminology PPSC

Correct Answer: B

The Data Dictionary (or system catalog) within a DBMS stores metadata, such as table structures, field definitions, and schema relationships.

Q3279.Which of the following is a passive topology?

Easy
A Bus
B Star
C Ring
D Mesh
General MCQs PPSC

Correct Answer: A

In passive network topologies like Bus, devices merely listen for transmitted data but do not actively repeat or amplify the signal.

Q3280.What is the number of bits in ASCII 7-bit code?

Easy
A 6
B 7
C 8
D 9
General MCQs PPSC

Correct Answer: B

The standard ASCII character encoding scheme uses exactly 7 bits to represent up to 128 unique alphanumeric characters.