Explanation

• BIOS stands for Basic Input Output System.

Additional information:

• BIOS is a firmware stored on a computer’s motherboard.
• Initializes hardware during booting and provides runtime services.
• Acts as an interface between operating system and hardware.

Last verified on 04-02-2026

Explanation

• Developer: Hitachi Global Storage Technologies (Hitachi GST)
• Product Name: Hitachi Deskstar 7K1000
• Release Year: 2007
• Storage Capacity: 1 TB (1,000 GB)
• Form Factor: 3.5-inch hard disk drive
• Technology Used: Five 200 GB platters

Last verified on 02-07-2026

Explanation

• Ctrl + D → Open Font dialog box

Additional information:

• Ctrl + H → Open Replace dialog box
• Ctrl + F12 → Open an existing document in Microsoft Word (Open dialog box)
• F12 → Save As
• Shift + F12 → Save document

Last verified on 02-07-2026

Explanation

• 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: Italian physicist Federico Faggin
• CPU Examples: Clock speeds – 3.0 GHz, 3.5 GHz, 4.0 GHz, 4.5 GHz, 5.0 GHz

Last verified on 15-02-2026

Explanation

• Ctrl + A: Select All

Additional information:

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

Last verified on 02-07-2026