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 public code archive, Question 1 Explain the various tools used for...

Question 1 Explain the various tools used for open source software development Question 2 Discuss the OSS licensing strategies Question 3 Explain the software developmen

What are search engines, QUESTION 1 What are search engines? QUESTI...

QUESTION 1 What are search engines? QUESTION 2 Write short notes on the inverted file. QUESTION 3 Write short notes on: (i) Derivative indexing (also known a

Number system , NUMBER SYSTEM:  We are familiar with decimal number sy...

NUMBER SYSTEM:  We are familiar with decimal number system which uses ten distinct symbols from 0...9, and has base 10. In the decimal number system a number n 4 n 3 n 2 n 1

Digital to analogue conversion (dac), Digital to analogue conversion (dac):...

Digital to analogue conversion (dac): Since many systems used on aircraft will require outputs in analogue form, it will be necessary to be able to convert the digital informat

Explain particle collision in detail, Question 1 Name the different types ...

Question 1 Name the different types of emitters and explain them in brief Question 2 List and explain the Particle Attributes Question 3 Explain Particle Collision

Java Assignment, Hi? are you conversant with Java that is J2SE 6 coz i have...

Hi? are you conversant with Java that is J2SE 6 coz i have assignments on this area?

Write the steps for applying animations, Question Write the steps for a...

Question Write the steps for applying animations. Prepare a presentation of 5 slides in a creative for any topic in your semester (research methods/Business strategy/Financial

Computer help, Computer Help Inc. is a computer timesharing, and software d...

Computer Help Inc. is a computer timesharing, and software development and sales company. It has been successful in attracting clients for both sides of its business. Staff count

Artificial intelligence-representations/languages used, Many persons are ta...

Many persons are taught AI with the opening line: " The three most important things in AI are representation, representation and representation ". While selecting the method of

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