FILE CONCEPTS BIT:- This stands for BINARY DIGIT. It is the unit used in binary representation. BYTE:- A sequence of bits operated upon as a unit and usually shorter than a computer word. A byte is a character and is equal to 8 bits (which means 3 bytes are three characters and are equal to 24 bits). CHARACTER:- This is a number or a letter or a symbol e.g. L, 4, +, etc. WORD:- A group of characters occupying one storage location in a computer. It is treated by the computer circuits as an entity, by the control unit as an instruction, and by the arithmetic units as a quantity. FIELD:- This is a combination of related characters. RECORD:- This is a combination of related fields. More precisely, a collection of related items of data (fields) located as a unit. FILE:- This is a collection of related records. An organized, named collection of records treated as a unit, or the storage device on which these records are kep
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DATA STRUCTURES
ORGANISATION OF DATA
Characters, facts, records, files and databases form an organisation of data. The basic building
block of data is a character. The character consists of upper and lower-case letter, numeric digits
or symbols. Upper and lower-case letters are Aa, Bb, Cc,… Zz. Numeric digits are 0, 1, 2,..,9.
Symbols involve commas (,) quotation mark (?) plus (+) division (/) and so on. Upper and lowercase
letters are called alphabetic character. Numeric digits are called numeric character. Symbol
is called special characters. A combination of the three types is called alphanumeric characters
(#2B, N2.50K). A computer can accept both alphanumeric and numeric and store them in
memory.
Characters are put together to form a fact. A fact is also called a field. A fact or field is a number,
an item, word, name or a combination of characters. Facts are put together to form a record. A
record is a related items of data in a file. An employee re
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We are proudly Nigerians company. Our focus is to
provides you with a standard technological platform that will brings
on-line studing via- (e-learning) very easy and reliable to you.
Technology has been advancing some years ago, but today, it has grown
faster than the previous years. Government has never relax on their
oars, but are planning, by investing on specialized ICT(Information and
Communication Technology) projects, that will facilitates and encouraged
education system in our country to gain a good solid ground. That is
what motivate us at Luckyfem Computer and Technological Institute to
design this standard designed website to provide a lots of services for
your interest such as:- e-learning, e-booking, e-studying,
e-downloading, e-mailing, e-charting etc. Happy surfing! Your are
welcome to our wonderful world of computing technology. Luckyfem
Computer and Technological Institute in affliation with Luckyfem
Inspiration and Motivational Sit
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