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

Realize x-nor gate using nand gate, Q. A. Which gates are called Universa...

Q. A. Which gates are called Universal Gates? Why? B. State and prove any one of the DeMorgen's Laws. Show that these theorems can be extended up to any number of variables.

How do you classify the neutrons, Q. How do you classify the neutrons in te...

Q. How do you classify the neutrons in terms of its kinetic energy? Neutrons are classified as-per to their kinetic energy as (a) Slow neutrons as well as (b) fast neutrons.

Discuss the classifications of switching systems, Discuss the classificatio...

Discuss the classifications of switching systems. The categorizations of switching systems are specified in the block diagram given below:

How to create a layout table in dreamweaver, Q. How to Create a Layout Tabl...

Q. How to Create a Layout Table in dreamweaver? In last section you used cells to create a table. Now, you will see how to start with a table and add cells later. 1.  In Obj

What is a table pool, What is a table pool? A table pool (or pool) is ...

What is a table pool? A table pool (or pool) is used to join several logical tables in the ABAP/4 Dictionary.  The definition of a pool having of at least two key fields and a

Public key infrastructure solutions, Public Key Infrastructure solutions ...

Public Key Infrastructure solutions The use of public-key based security systems requires great attention and due care in design and management of security features. The secur

Threads, First, remember that different processes keep their own data in di...

First, remember that different processes keep their own data in distinct address spaces. Threads, on the other hand, explicitly share their entire address space with one another. A

Create a social network application, A software development company wants t...

A software development company wants to create a social network application where users can post brief audio messages giving their thoughts. Each user of the application will ha

Compare electromechanical and electronic switching system, Compare electrom...

Compare electromechanical switching system with electronic switching system. Comparison of electromechanical switching system with electronic switching systemgiven below:

What is mqseries channel, Channel means logical communication link. There a...

Channel means logical communication link. There are two parts of channels a) Message channel, b) MQI channel   1) Mesage channel use for communication among QMgr to Q

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