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

Web service as opposed to a non-serviced, Can you give an example of when i...

Can you give an example of when it would be appropriate to use a web service as opposed to a non-serviced .NET component? A web service has the following characteristics:  1

COMPUTER SYSTEM, Classify computer systems according to capacity. How they ...

Classify computer systems according to capacity. How they are different from computers according to the classification of technology. Provide comparative study also.

State about the computer memories, Computer Memories Computer memories...

Computer Memories Computer memories are either external or internal. Internal memories are either RAM (random access memory) or ROM (read only memory). External memories can t

Instruction issue degree, Instruction Issue degree : The major concept in s...

Instruction Issue degree : The major concept in superscalar processing is how many instructions we can issue per cycle. If we issue k number of instructions per cycle in a supersca

Illustrate arithmetic shifts with example, Q. Illustrate Arithmetic shifts ...

Q. Illustrate Arithmetic shifts with example? Arithmetic shifts ARITHMETIC SHIFT LEFT and ARITHMETIC SHIFT RIGHT are same as LOGICAL SHIFT LEFT and LOGICAL SHIFT RIGHTexcept th

Explain signed binary number system, Explain signed binary number system. ...

Explain signed binary number system. Ans. Signed Binary Numbers: In decimal number system positive numbers are signified by (+) sign and negative numbers are represented b

Define the actions a process take upon receiving a signal, Define the vario...

Define the various actions a process might be take upon receiving a signal? There are various actions a process might be take upon receiving a signal here are three different d

Accessing the operands - assembly language, Accessing the Operands: ...

Accessing the Operands: operands are usually place in one of two places: -registers (32 int, 32 fp) -memory (232locations) registers are -simple to spe

Cut-off search - artificial intelligence, Cut-off Search: By using  a m...

Cut-off Search: By using  a minimax search, all we have to do is program, in a game playing situation our agent to look at the whole  search tree from the current state of the

Explain sequential sharing, Explain Sequential sharing. Sequential s...

Explain Sequential sharing. Sequential sharing: In this technique of sharing, a file can be shared through only one program at a time, it is file accesses by P1 and P2 are

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