Introduction to FCB , Basic Computer Science

Assignment Help:
There are two kinds of FCB, the normal, whose length is 37 bytes and the
expanded one of 44 bytes.
The FCB is created of data given by the programmer and by
data which it takes directly from the operative system.
When these types of files are used it is only achievable to work on the current
directory since the FCBs do not give sport for the use of the organization by directories of DOS.
The FCB is created by the following fields:
POSITION LENGTH sense
00H 1 Byte Drive
01H 8 Bytes File name
09H 3 Bytes Extension
18H 8 Bytes Reserved
20H 1 Bytes Current register
21H 4 Bytes Random register
0CH 2 Bytes Block number
0EH 2 Bytes Register size
10H 4 Bytes File size
14H 2 Bytes Creation date
16 H 2 Bytes Creation hours
To choose the work drive the next format is followed: drive A = 1; drive B
= 2; etc. If 0 is used the drive life form used at that instant will be taken as
option.
The name of the file must be defensible to the left and for fear that it is
essential the remaining bytes will have to be filled with gaps, and the
extension of the file is placed the same method.

Related Discussions:- Introduction to FCB

Explain the protection features of ms access, Question 1 Explain the pr...

Question 1 Explain the protection features of MS Access? 2 What is Query Parameter? 3 What are the steps to be taken for improving performance of Microsoft Access database? 4 W

How to crack a password, how can i crack the password of vmware virtual mac...

how can i crack the password of vmware virtual machine

Utility , what are the definition?

what are the definition?

Some CPUs provide multiple modes of operation, even though most systems onl...

even though most systems only distinguish among user and kernel modes, some CPUs provide multiple modes. Multiple modes could be used to provide a finer-grained security strategy.

Synchronous and asynchronous transmission, Synchronous and Asynchronous Tra...

Synchronous and Asynchronous Transmission: Another method of setting of terminals denotes synchronous or asynchronous transmission. Many terminals can only communicate in one

Explain master slave j-k flip flop, Question 1 Convert the following binar...

Question 1 Convert the following binary numbers to its specified number system 1101.11 (2) to octal 1111 (2) to decimal 110.11 (2) to hexadecimal 1011.11 (2) to

Artificial intelligence-search in problem solving, Search in Problem Solvin...

Search in Problem Solving If Artificial Intelligence can notify the extra sciences about something, it is about trouble solving and, in exacting, how to search for solutions to

Turn-around, The term ‘page traffic’ describes

The term ‘page traffic’ describes

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