Explanation

• Ctrl + I = Italic

Additional information:

• Ctrl + A = Select all
• Ctrl + B = Bold
• Ctrl + P = Print
  
• Ctrl + Y = Redo
• Ctrl + S = Save

Last verified on 09-08-2026

Explanation

• Cache Memory is the fastest memory.
• It is typically located inside or very close to the CPU.

Additional information:

• L1 Cache: Usually the fastest and smallest CPU cache.
• L2 Cache: Larger than L1 but generally slower.
• L3 Cache: Larger and usually shared among CPU cores.

Last verified on 09-08-2026

Explanation

• The shortcut key for Undo (last action reverse) is Ctrl + Z in most computer systems.
• It is used to cancel the last mistake or action.

Additional information:

• Ctrl + P = Print
• Ctrl + Y = Redo
• Ctrl + S = Save
• Ctrl + C = Copy command
• Ctrl + V = Paste
• Ctrl + C = Copy
• Ctrl + X = Cut
• Ctrl + Y = Redo

Last verified on 10-06-2026

Explanation

• Ctrl + Y is used for redoing the last undone action in most applications.

Additional information:

• - Ctrl + Z: Undo
• - Ctrl + X: Cut
• - Ctrl + C: Copy
• - Ctrl + V: Paste

Last verified on 09-08-2026

Explanation

• Ctrl + H is used for Find and Replace function.
• It allows users to search text and replace it quickly.

Additional information:

• Ctrl + F → Find text
• Ctrl + C → Copy
• Ctrl + V → Paste
• Ctrl + X → Cut
• Ctrl + Z → Undo

Last verified on 19-04-2026

Explanation

• ROM stands for Read Only Memory.
• It is a type of non-volatile memory.
• So its contents are retained when power is turned off.
• ROM stores important instructions such as firmware and boot instructions.

Additional information:

• RAM → Random Access Memory
• PROM → Programmable Read Only Memory
• EPROM → Erasable Programmable Read Only Memory

Last verified on 08-08-2026

Explanation

• ICT stands for Information and Communication Technology.
• It refers to technologies used to collect, process, store, and communicate information.
• ICT includes computers, mobile phones, the internet, networks, and communication systems.
• It is widely used in education, business, healthcare, and government.
• ICT helps people access and share information quickly and efficiently.

Last verified on 08-08-2026

Explanation

• EBCDIC stands for Extended Binary Coded Decimal Interchange Code.
• It is an 8-bit character encoding system developed by IBM.
• EBCDIC was mainly used in IBM mainframe and midrange computer systems.
• It can represent letters, numbers, and special characters.

Last verified on 08-08-2026

Explanation

• DMA stands for Direct Memory Access.
• It is a method that allows an I/O device to transfer data directly to or from main memory (RAM).
• The CPU does not need to handle every individual byte of the transfer.
• DMA can improve data-transfer speed and reduce CPU workload.
• It is commonly used for devices such as disk drives, network cards, and sound cards.

Last verified on 07-08-2026

Explanation

• The Backspace key is used to delete a character to the left side of the cursor in MS Word.
• It removes the character immediately before the cursor.

Additional information:

• The Delete (Del) key removes the character to the right side of the cursor.
• Ctrl + Backspace → Deletes the previous word

Last verified on 07-08-2026