Standards for scan codes, Computer Engineering

Assignment Help:

Q. Standards for scan codes ?

There are 3 standards for scan codes: Mode1 (83-key keyboard PC, PC-XT) and Mode2 (84-key AT keyboard) and Mode3 (101-key keyboard onwards). In Mode1 Make and Break codes are single bytes however different for same key. In Mode2 and Mode3 Make code is a single byte though Break code is two bytes (byte F0(Hex) + the make code).


Related Discussions:- Standards for scan codes

Data can be moved using a ''write:'' statement, Data can be moved from one ...

Data can be moved from one field to another using a 'Write:' Statement and stored in the desired format.  Write: Date_1 to Date_2 format DD/MM/YY.

Determine the bandwidth requirement of a telephone channel, The bandwidth r...

The bandwidth requirement of a telephone channel is (A)  3 KHz                                      (B)  15 KHz (C)  5 KHz                                      (D)  25 KH

Calculate width and height of the grid, Given a cell, we must determine its...

Given a cell, we must determine its neighbouring cells i.e. those with which it shares a wall. The cells with an x are the neighbours of the cell c. Write the function getneighbour

Routines which handle dynamic processes, Q. Routines which handle dynamic p...

Q. Routines which handle dynamic processes? number of routines which handle dynamic processes:  int pvm_joingroup( char *group ) Enrolls calling process in a na

Explain rudimentary file formats, Q. Explain rudimentary file formats? ...

Q. Explain rudimentary file formats? FTP only understands two rudimentary file formats. It classifies every file either as a text file or a binary file. A text file comprise a

Explain dead code elimination, Explain briefly Dead code Elimination of the...

Explain briefly Dead code Elimination of the commonly used code optimization techniques Dead code Elimination: Code which is unreachable or which does not influence the pr

Why use a DTD (Document Type Definition), Why use a DTD ( Document Type Def...

Why use a DTD ( Document Type Definition )? XML gives an application independent method of sharing data. Along with a DTD, independent group of people can agree to employ a com

Disadvantages of unauthenticated sites, Disadvantages of unauthenticated si...

Disadvantages of unauthenticated sites All the Units entering the Intranet must be scrutinised to ensure that they are not coming from the unauthenticated sites or users. It a

First-order models -artificial intelligence, First-Order Models - Artificia...

First-Order Models - Artificial intelligence: We proposed first-order logic like good knowledge representation language rather than propositional logic because it is more expre

What is an operating system, What is an operating system? An operating...

What is an operating system? An operating system is system software which provides interface between hardware and user. The operating system gives the means for the proper uti

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