Interfacing of keyboards, Computer Engineering

Assignment Help:

Q. Interfacing of keyboards?

The keyboard employs a special Input/output port which is similar to a serial port however doesn't explicitly follow the RS-232 serial port standard.  In place of multiple data and handshaking signals as in RS-232 the keyboard employs just two signals by which it manages a bi-directional interface with its own set of commands. 

Employing its elaborate handshaking mechanism keyboard and PC transmit commands and data to each other.  USB keyboards work in a different way by using USB coding and protocol.

590_Interfacing of keyboards.png


Related Discussions:- Interfacing of keyboards

What is ''LRU'' page replacement policy, 'LRU' page replacement policy is ?...

'LRU' page replacement policy is ? Ans. Least Recently Used.

Ai6301 - building blocks and techniques used in ai, The princess (or princ...

The princess (or prince if you're female) has been captured by the Evil Dragon and held prisoner in a tower. The tower is also surrounded by a maze to keep out the riff-raff. You

How many types of stages include in process of data mining, How many types ...

How many types of stages include in process of data mining? The process of data mining comprised three stages as given below: a) The initial exploration b) Model buildin

Navigation to a subsequent screen, Navigation to a subsequent screen can be...

Navigation to a subsequent screen can be specified statically/dynamically Yes, navigation to a subsequent screen can be specified statically.

What are the properties exposed by activex controls, An ActiveX control has...

An ActiveX control has four types of properties: 1. Stock:-> These are standard properties supplied to each control, such as font / color. The developer must activate stock pro

Illustrate the term EDI trading patterns, Illustrate the term EDI Trading P...

Illustrate the term EDI Trading Patterns? EDI Trading Patterns are illustrated below: a. Hubs and Spokes: Several of the prime movers into the adoption of Electronic Da

Give the example of first come first served scheduling, Consider  the  foll...

Consider  the  following set of jobs with  their  arrival  times,  execution  time  (in minutes), and deadlines. Job Ids Ar r ival Time E

Visibility, hidden edge/surface removal

hidden edge/surface removal

What is segment - assembler directives, What is SEGMENT - Assembler directi...

What is SEGMENT - Assembler directives SEGMENT:  This directive defines to assembler the start of a segment with name segment-name.  Segment name must be unique and follows the

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd