User Account

All Pages

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

Electronic transmission frequency, Electronic  transmission Frequency: ...

Electronic  transmission Frequency: Frequency is the rate at which a wave or cycle alternates between high and low (analog mode) or on and off (digital mode). For example, the

The central processing unit (cpu), THE CENTRAL PROCESSING UNIT (CPU): T...

THE CENTRAL PROCESSING UNIT (CPU): The CPU is the heart of any computing system.  It executes the individual machine instructions, which make up a program. The CPU is formed fr

Vector processor, tell me about vector processor

tell me about vector processor

Sequential-access memory device, Sequential-access memory device: A  S...

Sequential-access memory device: A  Sequential-access  memory device reads data in sequence. In other words, information on a serial device can only be retrieved in the same s

What are the characteristics of a good documentation?, Question 1 What are...

Question 1 What are the differences between closed and open systems? Question 2 What are the characteristics of a good documentation? Question 3 What are the steps invol

Input devices, Input Devices Keyboard Keyboard is the dev...

Input Devices Keyboard Keyboard is the device through which the commands, instructions required for execution of a program is entered. It consists of a number of

Two-tiered architecture, Two-tiered architecture: This approach basic...

Two-tiered architecture: This approach basically introduced a database server to replace the file server. The emergence of relational database management systems and graphica

Examples of online databases, Examples of Online Databases: The adopti...

Examples of Online Databases: The adoption of modern technology has resulted in the proliferation of machine readable databases. The National Library of Medicine (USA) designe

What are the uses of the internet, Question 1 What are many of the modern ...

Question 1 What are many of the modern browsers in use today? Describe all in detail Question 2 Write a long note on the uses of Domain Names Question 3 What are the use

Flow decomposition technique to list the cycles, QUESTION (a) Consider ...

QUESTION (a) Consider the graph below, use the Flow Decomposition technique to list the cycles and paths produced.                                                (b) Pr

Write Your Message!

Captcha
Order Assignment

Featured Services

Order Now

Popular Subjects

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!

Submit Assignment

Academics

Major Subjects

Majors

Get In Touch

whatsapp: +91-977-207-8620

Phone: +91-977-207-8620

Email: [email protected]

TERMS & POLICIES

HELP & SUPPORT

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd