Explanation

Microprocessors are used in many other electronic devices, including:

• Computers,
• Digital systems,
• Calculators

Inventor of Microprocessors: Marcian E Hoff

Microprocessors in 4th generation computer.

AGM 09-2-2023

Explanation

The motherboard is the central printed circuit board in a computer that serves as the foundation for all other hardware components.

All other devices, including the CPU, RAM, hard drives, and peripherals, connect directly or indirectly to the motherboard. 

Explanation

He told me that he had the duty.

Present perfect ("have") changes to past perfect ("had") in indirect speech.

Explanation

Active: We do not waste time.

Passive: Time is not wasted by us.

(Subject becomes the object, and the verb is changed appropriately.)

Explanation

Imperative passive sentences starting with "Let" become direct commands in active voice.

"Let the door be shut" → "Shut the door" in active voice.

Explanation

The correct preposition after "afraid" is "of".

So, the correct sentence is: "She was afraid of snakes."

Explanation

Still is modifying the verb lives, showing that the action continues.

Adverbs describe how, when, where, or to what extent something happens—still tells when in this case.

Explanation

A Trap door (or backdoor) is a hidden entry point into a system that bypasses normal authentication, making it a serious security threat.

Unlike viruses or worms, it allows unauthorized access without detection, potentially exposing entire systems.

Explanation

Sabotage refers to the intentional destruction or damage of data or systems.

It involves deliberate harmful actions, unlike accidental data loss or hardware failures.

Explanation

Transmission media refers to the physical path (like cables or wireless signals) used to transfer data between devices.

It enables communication in computer networks, such as LANs and the Internet.