Transcript Binary number system

Fill in the blanks:
(1) _________ has only two possible values 0 and 1.
(2) There are __________bits in a byte.
(3) 1 kilobyte of memory space can store _________ bites.
(4) 1 gigabyte = ___________ megabytes.
(5) Using only 7 bits initially, the number of printing and nonprinting characters that ASCII code could represent was
_________.
(6) The decimal value of the space character in the ASCII code
is _________.
(7) In the ASCII code, the decimal values of the capital letters
of the English alphabet range from ___________ to
___________.
Fill in the blanks:
(1) Binary number system has only two possible values 0 and
1.
(2) There are 8 bits in a byte.
(3) 1 kilobyte of memory space can store 8192 bites.
(4) 1 gigabyte = 1024 megabytes.
(5) Using only 7 bits initially, the number of printing and nonprinting characters that ASCII code could represent was
128.
(6) The decimal value of the space character in the ASCII code
is 32 .
(7) In the ASCII code, the decimal values of the capital letters
of the English alphabet range from 65 to 90 .
Name the following:
(1) The smallest unit of digit storage and
information .
bit
(2) A group of 8 bits treated as a unit.
1 byte
(3) A group of 2, 4, or 8 bytes treated as a unit.
Word
State True or False:
(1) The term bit is coined from binary information technique.
False
(2) In a binary number, the place-value of the bit to the left of the unit position is 10
False
(3) The 8-bit for bit is the lower case letter b.
Truebyte can represent only 128 numbers.
False
(4) The abbreviation
(5) 1 kilobyte = 8192 bits.
True
(6) Computers store text documents in RAM and on hard disk using ASCII codes.
True
(7) The ASCII standard code was developed by the American Standard code for
information interchange.
True
What is the decimal system?
Ans: The number system with base 10 is called
decimal system.
What is the binary system?
Ans: The number system with base 2 is called
binary system.
Write any two points of difference
between the decimal and binary
number systems.
Decimal number system
1) The number system with base
10 is called decimal system.
Binary number system
1)The number system with
base 2 is called binary system.
2) In decimal number system each 2) In binary number system each
of 10 digits are 0,1,2,3,4,5,6,7,8,9. of 2 digits are 0,1.
What is the place-value of each bit in
the binary notation?
Ans: In the binary notation, the place-value of
each successive bit to the left of the unit
position indicates a multiple of successive
power of 2.
What is the byte?
Ans: A group of 8 bit treated as a unit by
computer hardware is called by a byte.
What is a word to a microprocessor?
• Ans: The memory and cpu of a computer use a
still larger unit called a word. The number of
bits in a word can be 16, 32 or 64; this is , a
computer may use a 2 byte , 4 byte or 8 byte
word. Computer reads has a 64 bit processor
with 4GB RAM and 250GB hard disk is saying
that the microprocessor uses 64 bit word.
What is meant by ASCII code?
Ans: ASCII code stands for American Standard
Code for Information Interchange developed
as a standard a table of 7 bit binary code to
represent text.