Computer — All MCQs
4795 questions available
Q4501.Which company developed the widely used computer operating system 'Windows'?
Correct Answer: A
The Windows operating system was developed by Microsoft, which was co-founded by Bill Gates.
Q4502.A hyperlink is best defined as which of the following?
Correct Answer: D
A hyperlink is a clickable word, phrase, or graphic in a document that directs the user to another document, location, or webpage.
Q4503.Which of the following devices is primarily used to send digital data over a standard analog telephone line?
Correct Answer: B
A modem (modulator-demodulator) converts digital signals from a computer into analog signals for telephone transmission, and vice versa.
Q4504.What is the primary function of Dynamic Random-Access Memory (DRAM)?
Correct Answer: A
DRAM (Dynamic Random-Access Memory) is a type of volatile semiconductor memory that provides temporary, high-speed storage for active processes.
Q4505.What is the keyboard shortcut to extend your current text selection by one word to the left in MS Word?
Correct Answer: D
Pressing Ctrl + Shift + Left Arrow highlights the text word-by-word to the left of the current cursor position.
Q4506.In spreadsheet applications like Microsoft Excel, the individual rows of a table correspond to _____?
Correct Answer: B
In database and spreadsheet tables, each horizontal row represents a complete record (a collection of related fields).
Q4507.An electronic mail (email) message cannot be sent successfully without specifying which of the following?
Correct Answer: C
The recipient's (receiver's) email address is a mandatory field to route and deliver an email message successfully.
Q4508.One Terabyte (1 TB) of storage capacity is equivalent to which of the following?
Correct Answer: B
One Terabyte (TB) represents 10^12 bytes, which is equivalent to approximately one trillion bytes.
Q4509.The electronic digital computer was developed primarily in which country?
Correct Answer: C
The electronic digital computer, processing binary data, was primarily invented and developed in the USA (e.g., Atanasoff-Berry Computer, ENIAC).
Q4510.A cell entry such as 'July 16, 2016' is recognized and treated as which of the following by Microsoft Excel?
Correct Answer: B
Excel treats valid dates (such as 'July 16, 2016') as numerical values, storing them internally as serial numbers for date calculations.
Q4511.What does the abbreviation MODEM stand for?
Correct Answer: A
MODEM is a portmanteau of Modulator-Demodulator, converting analog signals to digital and vice-versa.
Q4512.Which of the following computer components houses the CPU, ROM, RAM, and expansion slots?
Correct Answer: C
The motherboard (system board) is the main printed circuit board that connects the CPU, memory modules, and other peripherals.
Q4513.Which of the following refers to the high-speed primary memory of your computer?
Correct Answer: B
RAM (Random Access Memory) is the primary volatile memory of a computer system, used for holding active programs and data.
Q4514.Which web browser feature displays a list of all the websites and pages you have visited over a period of time?
Correct Answer: A
The History list is a built-in browser feature that keeps a chronological record of visited web pages.
Q4515.The ______, also called the web, contains billions of interconnected documents.
Correct Answer: C
The World Wide Web (WWW) is a system of internet servers that support formatted documents (web pages) linked via hyperlinks.
Q4516.Which of the following is a commonly used graphic format for the web?
Correct Answer: D
GIF, along with JPG and PNG, are the three most common graphic formats used on the web.
Q4517.The process of establishing a connection to your personal internet account is called _____?
Correct Answer: C
Logging in (or logging on) is the process of entering credentials to access a secure digital account or service.
Q4518.How many bytes are there in a single Megabyte (MB) in the binary measurement system?
Correct Answer: D
In binary (base-2) computing notation, 1 Megabyte (MB) = 1,024 Kilobytes (KB) = 1,024 * 1,024 bytes = 1,048,576 bytes.
Q4519.A hardware device that converts user-entered instructions into binary form understood by a computer's CPU is known as an _____ device.
Correct Answer: D
An input device captures human instructions and translates them into binary electrical signals for processor execution.
Q4520.When you save a document file as a Webpage in MS Word, Word converts the document's contents into _____?
Correct Answer: C
Saving a file as a webpage converts the text formatting and layouts into HTML (HyperText Markup Language) source code.