answers!!!

1. Describe various types of pen input, and identify other types of input for smart phones.

 Light Pen - Light pen is actually one more pointing input gadget. This will pick up on existence of light. It's a hand held pen fashioned gadget having a photocell installed in it's front-end.

Digitizer - A Digitizer is also called a graphic tablet and uses a pen input device. It's a flat, rectangle-shaped digital plastic material pad. Every position to the digitizer points to matching video display. It's primarily useful for producing road maps and also engineering blueprints.

Stylus and Cursor - Stylus pen is actually like a ballpoint pen. It's utilized to compose textual content or make lines (or generate drawings and also pictures) on the exclusively developed graphics display or digitizer.

Types of Input of smartphones:
(1) Location of the Mirror Server
    In the proposed architecture, the mirror server monitors all network traffic of smartphones.
(2) Mirror Design
    Compared with using PCs, creating mirrors for smartphones has many advantages. First, same model smartphones have the same hardware specifications, default factory settings, OS, and many software applications.
(3) Synchronization Mechanisms
    To keep a smartphone and its mirror synchronized through the telecom network, the mirror needs to be updated when the state of the smartphone changes. In this paper, one option is presented for loose synchronization, which requires identical hardware specification, storage (e.g. SD card), OS, and installed application software.
4) Network Design
    The mirror server resides in a 3G network as an application server and supports services such as security, storage, and computation delegation. It is easy to configure the nodes of a 3G network to route all incoming/outgoing smartphone messages (such as session control messages, data packets, and other 3G signaling protocols) to traverse the mirror server without any interaction with the smartphone.

2. The purpose of various game controllers: gamepads, joysticksand wheels, light guns, dance padsand motion-sensing game controllers.

A gamepad, also known as a joypad, is the most common kind of game controller. They are held in both hands with thumbs and fingers used to provide input. Gamepads can have a number of action buttons combined with one or more omnidirectional control sticks or buttons.

This joystick is a peripheral that consists of a handheld stick that can be tilted around either of two axes and (sometimes) twisted around a third. The joystick is often used for flight simulators.

A light gun is a peripheral used to "shoot" targets on a screen. They usually roughly resemble firearms or ray guns. Their use is normally limited to rail shooters, or shooting gallery games like those that came with the Shooting Gallery light gun.

A dance pad, also known as a dance mat, dance platform, or jitter deck is a flat electronic game controller used for input in dance games. Most dance pads are divided into a 3×3 matrix of square panels for the player to stand on, with some or all of the panels corresponding to directions or actions within the game.

3. Explain how resolution affects the quality of a picture captured on a
digital camera.
-->Sharpness and clarity of image. The higher the resolution, the better the image quality, but the more expensive the camera

4. Describe the uses of voice recognition, Web cams, and video conferencing.

 Web cam—cvideo camera whose output displays on a Web page.

 

5. Discuss how various scanners and reading devices work: optical scanners,
optical readers, bar code readers, RFID readers, magnetic stripe card
readers, MICR readers, and data collection devices.

6. Summarize the various biometric devices: fingerprint reader, face
recognition system, hand geometry system, voice verification system,
signature verification system, and iris recognition system

ØVideo conferencing-Two or more geographically separated people who use network or Internet to transmit audio and video data.