Computer Basics
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Q181.The function of Alt + Tab on the keyboard is?
Correct Answer: A
Alt + Tab is used to switch between open applications or windows. Hold Alt and press Tab to move through currently open windows. It is a useful shortcut for multitasking. Additional information: • Alt + F4 — Close the active window • Windows + Tab — Open Task View • Ctrl + Tab — Switch between tabs • Windows + D — Show/Hide desktop
Q182.The CPU (Central Processing Unit) is responsible for?
Correct Answer: A
CPU processes instructions, performs calculations, and controls computer operations. The CPU is the main processing unit of a computer. It is often called the “brain of the computer.” The CPU includes major components such as the ALU, Control Unit, and registers.
Q183.What are the main functions of the CPU?
Correct Answer: D
The CPU is the brain of a computer. It contains all the circuitry needed to process input, store data, and output results. The CPU is constantly following instructions from computer programs that tell it which data to process and how to process it.
Q184.Times New Roman, Arial are examples of _____?
Correct Answer: C
Times New Roman and Arial are commonly used font styles/typefaces. A font determines the visual appearance and design of text. Font size refers to the size of the characters, such as 12 pt or 14 pt. Bold, Italic, and Underline are examples of text formatting styles. Common fonts include Arial, Times New Roman, Calibri, and Verdana.
Q185.Which output device is used to display video images on a large screen?
Correct Answer: C
A projector is an output device used to display video images on a large screen. It receives video signals from a computer or other device. Additional information: • Scanner is an input device. • Printer produces hard copies.
Q186.Which part of computer is known as Heart/Brain of Computer?
Correct Answer: B
The CPU (Central Processing Unit) is the brain/heart of the computer. It performs all calculations, executes instructions, and controls other components. Additional information: • First commercial CPU: Intel 4004 (1971) • Invented by: Federico Faggin
Q187.Which of the following holds data and processing instructions temporarily until the CPU needs it?
Correct Answer: A
Primary storage, also known as main memory or RAM, stores data and instructions temporarily for quick access by the CPU.
Q188.What is Labeling?
Correct Answer: A
Labeling means assigning a descriptive name, title, or label to identify an object, table, figure, or data point.
Q189.A physical connection between the microprocessor memory and other parts of the microcomputer is known as?
Correct Answer: B
An address bus is the physical pathway of connections carrying memory addresses between the microprocessor CPU and system memory.
Q190.Where is RAM located?
Correct Answer: B
RAM (Random Access Memory) is installed directly on the motherboard in dedicated slots (DIMM slots) for rapid volatile storage access.
Q191.What does the “Pivot Table” tool primarily allow users to do?
Correct Answer: C
Pivot Tables are used to aggregate, group, summarize, and analyze large datasets rapidly to identify trends and comparisons.
Q192.In which part of computer execution of instructions done?
Correct Answer: C
The ALU (Arithmetic Logic Unit) of the CPU performs all arithmetic operations (like addition, subtraction) and logical comparisons required to execute program instructions.
Q193.Which provides process and memory management services that allow two or more tasks, jobs, or programs to run simultaneously?
Correct Answer: C
Multi-tasking is the capability of an operating system to execute multiple tasks concurrently by managing CPU cycles and memory spaces.
Q194.The files deleted from the computer are stored in _____?
Correct Answer: A
In the Windows operating system, deleted files are temporarily stored in the Recycle Bin from where they can be restored or emptied permanently.
Q195.Which memory type is fastest and is typically located inside the CPU?
Correct Answer: C
Cache memory is extremely high-speed memory located directly on or near the CPU to temporarily hold frequently used instructions and data.
Q196.What was the purpose of AutoCorrect originally?
Correct Answer: C
AutoCorrect was originally designed by Microsoft to immediately detect and correct common spelling mistakes and typos as the user typed.
Q197.A word processor would most likely be used to do?
Correct Answer: B
Typing a biography is a standard text creation and editing task, which is the primary purpose of a word processor like MS Word.
Q198.The only difference between memory and storage is _____?
Correct Answer: B
Computer memory (RAM) is temporary and volatile (lost when turned off), while storage (HDD/SSD) is permanent and non-volatile.
Q199.What is the correct sequence of data storage units from smallest to largest?
Correct Answer: A
The correct sequence is Byte (B) → Kilobyte (KB) → Megabyte (MB) → Gigabyte (GB). Typically each unit is 1,024 times larger than the preceding one.
Q200.ROM stands for _____?
Correct Answer: B
ROM stands for Read Only Memory, which is non-volatile memory storing permanent startup instructions (firmware).