Explanation

• Full Form: Portable Document Format (PDF)
• Developed by: Adobe Inc.
• Introduced: 1993
• Co-founder associated with Adobe: Charles Geschke
• Purpose: Reliable document sharing and viewing

ان سولات کو ضرور پڑھیں

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Last verified on 01-07-2026

Explanation

• Europe is the only continent without a desert.
• It has a temperate climate with sufficient rainfall.

Additional information:

• Divided by the Ural Mountains
• Second-smallest continent
• Covers 2% of Earth’s surface
• Area: 10.18 million km²

Last verified on 16-01-2026

Explanation

• Alt + Shift + F1 / Shift + F11 → Insert a new worksheet

Additional information:

• Shift + F10 → Open shortcut/context menu
• Ctrl + Page Up → Previous worksheet
• Ctrl + Page Down → Next worksheet

Last verified on 15-07-2026

Explanation

• IP stands for Internet Protocol.
• It is a set of rules used to address and route data between devices on a network.
• Every device on an IP network can be identified using an IP address.

Additional information:

• IPv4: Uses 32-bit addresses.
• IPv6: Uses 128-bit addresses.
• Example of IPv4: 192.168.1.1

Last verified on 27-09-2026

Explanation

• An operating system manages computer hardware and software resources.
• It uses hardware efficiently and provides services to applications.
• It allows programs to run smoothly and interact with hardware.
• It acts as an interface between users, applications, and hardware.

Last verified on 08-06-2026

Explanation

Explanation

• SATA: Serial Advanced Technology Attachment
• Type: Computer hardware interface
• Used for: Connecting storage devices
• Devices: HDDs, SSDs & optical drives
• Connection: Storage device → Motherboard

Last updated NS on 13-09-2026

Explanation

• VLSI stands for Very Large Scale Integration
• VLSI began in 1970
• It is the process of creating an integrated circuit (IC) by combining thousands, millions, or even billions of transistors onto a single tiny silicon chip

Explanation

• JPEG stands for Joint Photographic Experts Group.
• JPEG is a common digital image compression and file format.
• The name comes from the organization that developed the standard.
• JPEG is widely used for photographs and web images.
• Its common file extensions are .jpg and .jpeg.

Last verified on 08-09-2026

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