Computer — All MCQs
4795 questions available
Q1621.What is DMA stand for?
Correct Answer: A
DMA stands for Direct Memory Access, which allows hardware subsystems to access main system memory (RAM) independently of the CPU.
Q1622.Which file is responsible to start MS PowerPoint?
Correct Answer: C
Powerpnt.exe is the executable program file used by the Windows operating system to launch Microsoft PowerPoint.
Q1623.If you want to attach a printer to a computer, what is necessary?
Correct Answer: B
A cable (such as a USB cable) is physically necessary to connect a printer directly to a computer (unless using a wireless network).
Q1624.Which key is used to delete a character to the left side of the cursor in MS Word?
Correct Answer: B
The Backspace key deletes a character to the left of the cursor, while the Delete key deletes a character to the right of the cursor.
Q1625.Which shortcut key is used to moves the cursor one page down?
Correct Answer: C
In MS Word, Ctrl + Page Down moves the cursor to the top of the next page, while Page Down alone moves the viewport down by one screen.
Q1626.Which of following software is used to prepare/create multimedia presentation?
Correct Answer: A
Microsoft PowerPoint is a dedicated presentation software used to create multimedia slide shows combining text, audio, video, and animation.
Q1627.Which one is used for both read and write operations?
Correct Answer: A
RAM (Random Access Memory) allows both read and write operations, whereas ROM is designed primarily for read-only operations.
Q1628.What is internet?
Correct Answer: A
The Internet is a global network of networks, physically composed of interconnected wide area networks (WANs) communicating via TCP/IP protocols.
Q1629.RAM stands for ____?
Correct Answer: A
RAM stands for Random Access Memory, which is the high-speed primary memory used by a computer to store active data.
Q1630.Which of the following is a single-user system?
Correct Answer: A
DOS (Disk Operating System) is designed strictly as a single-user, single-tasking operating system with a command-line interface.
Q1631.A computer application program that displays data arranged in rows and columns is called?
Correct Answer: A
A spreadsheet is a software application (like MS Excel) designed to organize, display, analyze, and calculate data arranged in a grid of rows and columns.
Q1632.Which key is used to align the text to center?
Correct Answer: D
Ctrl + E is the keyboard shortcut used to center-align the selected text or paragraph in MS Word.
Q1633.BIOS stands for ______?
Correct Answer: C
BIOS stands for Basic Input Output System, which is the built-in firmware used to initialize hardware and test system components during booting.
Q1634.The keyboard Shortcut key to decrease font size by one point is _____?
Correct Answer: D
In MS Word, Ctrl + [ decreases the font size by exactly 1 point, while Ctrl + ] increases it by 1 point.
Q1635.Which key is used to select the whole document?
Correct Answer: D
Ctrl + A is the shortcut used to 'Select All' content, text, or objects in the active document or window.
Q1636.Which shortcut key is used to open an existing file in MS Word?
Correct Answer: A
Ctrl + O opens the 'Open' window to browse and select an existing document file. Ctrl + N is used for a new document.
Q1637.Which shortcut key inserts a new slide in current presentation?
Correct Answer: B
In PowerPoint, Ctrl + M inserts a new slide into the active presentation, whereas Ctrl + N creates a completely new presentation file.
Q1638.Why do binary digits need more space?
Correct Answer: C
Binary codes are long and require a high number of digits (0s and 1s) to represent complex characters, numbers, and multimedia elements.
Q1639.Embedded computer software is?
Correct Answer: B
Embedded software is firmware designed to control specific hardware and devices (like appliances, cars, and industrial machines).
Q1640.The default settings for Narrow margins in MS Word are?
Correct Answer: A
MS Word's pre-configured 'Narrow' margin layout applies a margin of exactly 0.5 inches (1.27 cm) on the top, bottom, left, and right sides.