Explanation

The computer mouse was invented and developed by Douglas Engelbart,

 In 1964, at the Stanford Research Institute (SRI). 

1964: The prototype was built.

1968: Introduced to the public during the famous "Mother of All Demos".

Explanation

ROM (Read-Only Memory) is a type of hardware that stores essential

Hardware: ROM is a physical memory chip (a hardware component).

Firmware: The data on ROM isn't regular software you use; it's firmware—low-level software (like BIOS/UEFI) that tells hardware how to start and interact with the OS.

Explanation

Silicon is the primary material used in making computer chips.

Due to its excellent semiconductor properties.

They are essential for controlling electrical currents.

Explanation

Webcams can be built-in computer hardware or peripheral devices and are commonly connected to a device using USB or wireless protocols.

Explanation

A hard disk is a secondary storage device used to store data permanently.

RAM and ROM are primary storage (main memory).

Diodes and Semiconductors are basic electronic components.

CD-ROM is a secondary storage device used to store data permanently.