Computer Hardware Devices

Intelligent terminals have their own processor and memory, allowing users to program them for specific tasks. They can execute instructions independently without constant mainframe communication. Dumb terminals and VDTs only display and send data, while smart terminals have limited processing capabilities but aren't user-programmable.

IBM's PS/2 line used the newer 3.5 inch diskette format, which became the industry standard replacing the older 5.25 inch disks. The 3.5 inch diskette came in a rigid plastic case with a sliding metal shutter, offering better protection than the flexible 5.25 inch disks.

Desktop and laptop are types of computers whereas a stereo is a device for playing music.

An input device sends data to the computer for processing. Examples include keyboard, mouse, and scanner which take user input and feed it into the computer system.

A touch screen is an input device that detects touch input and translates it into commands. While it can be part of a display system (showing output), the touch detection itself is purely an input function. It is not a storage medium or operating system.

'Dark' and 'light' are opposite to each other. Other two options have similar pairs.

Scanner is an input device that scans documents and converts them into digital data.

Yes, both are the true options.

This DMA transfer mode is the one in which DMA transfers at the fastest possible rate as long as the I/O device asserts its DMA request.

Windows 2000 give the serial keys that have ability to support speech augmentation device.

POST (Power-On Self-Test) is a firmware routine that tests essential hardware components like video cards, memory chips, and performs BIOS identification. ScanDisk is a Windows disk-checking utility that runs after the OS boots if needed, not during POST.

Low-power USB devices receive power through the USB cable itself, eliminating the need for separate power cables or external power supplies. This is one of USB's key advantages - it carries both data and power. The computer's power supply provides electricity through the USB port and cable.

The most critical factor is whether the mouse connector matches the available port on your computer (PS/2, USB, wireless). Driver software is usually generic or easily downloadable, cord length is flexible, and button count is a preference. Without physical compatibility, the mouse simply won't work with your system.

TWAIN is a standard interface for communication between scanners (and other imaging devices) and computer software. It's not a scanner component like a laser or cartridge, nor a general term like 'media'. TWAIN allows applications like Photoshop to acquire images directly from scanners without needing device-specific drivers.

A scanner is an INPUT device that captures images or documents and converts them to digital data. The other options (printer, flat screen, touch screen) are all output devices that display or produce information from the computer.