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

Minimum total number of shelv, Write a program that finds the minimum total...

Write a program that finds the minimum total number of shelv, C/C++ Programming

How deep does fifo require to be stop underflow or overflow, Given the subs...

Given the subsequent FIFO and rules, how deep does the FIFO require to be to stop underflow or overflow? RULES: a. frequency(clk_A) = frequency(clk_B) / 4 b. per

What is vector processing, What is vector processing?  There is ...

What is vector processing?  There is a class of computational problems that are beyond the capabilities of a conventional computer. These problems are characterized by t

Define the time required by sector to reach below read/write, is the time r...

is the time required by a sector to reach below read/write head. Latency Time is the time needed by a sector to reach below read/write head.

What are batch systems, What are batch systems?  Batch systems are quit...

What are batch systems?  Batch systems are quite appropriate for implementing large jobs that need little interaction. The user can submit jobs and return later for the results

In which page replacement policies balady’s anomaly occurs, In which page r...

In which page replacement policies Balady’s anomaly occurs? FIFO that is First in First Out.

Operator, write algorithm and draw flowchart for exchange the values of two...

write algorithm and draw flowchart for exchange the values of two variables.

Describe the term- systems analysis, Describe the term- Systems Analysis ...

Describe the term- Systems Analysis A systems analysis team is every so often brought in to improve on an existing system. Often this involves moving from a paper-based filing

Determine the nand gate, Find out the two inputs when the NAND gate output ...

Find out the two inputs when the NAND gate output will be low. Ans. The output of NAND gate will be low if the two inputs are 11. The Truth Table of NAND gate is shown

Show SNMPs representation in ASN.1 syntax, An SNMP integer whose value is 2...

An SNMP integer whose value is 200 has to be transmitted. Show its representation in ASN.1 syntax. An ASN.1 transfer syntax describes how values of ASN.1 types are unambiguousl

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