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

Heuristic search strategies-artificial intelligence, Heuristic Search Strat...

Heuristic Search Strategies-Artificial intelligence In general speaking, a heuristic search is one which utilizes a rule of thumb to improve an agent's performance in solving p

Algorithmic, define it #Minimum 100 words accepted#

define it #Minimum 100 words accepted#

Explain actual process of ftp applications, Question 1 How do you inse...

Question 1 How do you insert Image source code in HTML Question 2 Explain actual process of FTP applications Question 3 Write a short note on TIFF BMP

Chat, Chat: The word chat in English language means - casual conversat...

Chat: The word chat in English language means - casual conversation. On Internet it means the same, except that you need to use text and your keyboard skills are tested. Earli

Overall functions , OVERALL FUNCTIONS : There are three points that must b...

OVERALL FUNCTIONS : There are three points that must be borne firmly in mind when considering the use of computers in laboratory management. Overall Function This includes

Describe CPU registers , The CPU has four internal registers, each of 16 bi...

The CPU has four internal registers, each of 16 bits. The first four, AX, BX, CX, and DX are common use registers and can also be used as 8 bit registers, if used in such a way it

Text, text graphics audio video

text graphics audio video

Autonomous rational agents - artificial intelligence, A utonomous Rational...

A utonomous Rational Agents: In many cases, it is not accurate to talk about a particular program or a particular  robot, as the combination of and software and hardware in so

Artificial interlligence, 7. Name and explain the action in Conceptual Depe...

7. Name and explain the action in Conceptual Dependency which refers to a transfer of possession.

Program planning (preparation of a flow chart), Program Planning (Preparati...

Program Planning (Preparation of a Flow Chart) A flow chart is a graphic method for indicating a proposed or actual solution to the problem. A flow chart shows the steps a comp

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