Computer Hardware Devices

Input device is used to bring information into a computer.

USB or Universal Serial Bus is a connectivity port in the computer that connects various devices with USB interface. This is a plug and play port that does not require additional software for a device to work. It is often used to connect mouse, keyboard and pen drives.

System bus is a communication channel which is used by the different units of computer system for transferring data among them.

Digital scanner is not a computing device.

Dvorak is the fastest keyboard.

A touch pad (touchscreen) uses switch contacts placed under a plastic pad that can be inscribed with symbols. When pressure is applied to specific areas, the underlying contacts make connection, registering input. This is characteristic of resistive touch technology where two conductive layers with contacts are separated by a spacer. Punched cards use holes, soft keyboards are virtual interfaces, and mice use optical/trackball sensors.

This is the correct answer. We can talk to our near and dear ones while sitting at home with a telephone.

A scanner is an input device that converts physical documents to digital format. It cannot execute code or transmit viruses. Viruses can spread through floppy diskettes (boot sector viruses), email attachments, and internet downloads. Scanners are input-only devices with no data writing capability.

CRT (Cathode Ray Tube) is a display technology used in traditional monitors and TVs. It uses vacuum tubes to display images by firing electrons at a phosphorescent screen. CPUs are processors. Printers produce paper output. Scanners digitize documents.

Common mouse tracking technologies include mechanical (ball mouse), optical (LED or laser tracking), and optical-mechanical (combination). Motorized is not a recognized mouse technology - mice are not motorized devices.

A graphical user interface(GUI) is a human computer interface that uses windows, icons and menus and which can be manipulated by a mouse.

The connector type (USB, PS/2, wireless) determines if the mouse is physically compatible with your computer. Drivers (A) can be installed, cord length (B) can be extended, and buttons (D) vary by preference, but the wrong connector won't work at all.

USB devices receive power through the USB cable itself from the computer's power supply. Low-power devices don't need separate power cables or external adapters.

The keyboard remains the most fundamental and widely used input device for computers, used for text entry, commands, and navigation. While mice are common, the keyboard is essential for most computing tasks and is present on virtually every computer setup. UPS is battery backup, CPU is processing, not input.

This question is poorly worded. Options A (CRT), B (Monochrome), and C (RGB) are all specific types or technologies of monitors, while D (Video display) is the general functional category. 'Video display' is the broader term that encompasses what a monitor does. The question asks for a term 'related to' monitors, making the general category the best answer.