Wednesday, November 20, 2013
INTRODUCTION COMPUTER LANGUAGES
A programming language is a machine-readable artificial language designed to express computations that can be performed by a machine, particularly a computer.
FOURTH GENERATION PROGRAMMING LANGUAGE
- A Fourth-Generation Programming Language(4GL) (1970s-1990) is a programming language or programming environment designed with a specific purpose in mind, such as the development of commercial business software.
- All 4GLs are designed to reduce :
- programming effort,
- the time it takes to develop software and
- the cost of software development.
BINARY ARITHMATIC
BINARY ARITHMATIC
And now we are going to learn how addition , subtraction , multiplication and division in binary arithmatic .
Addition :
Process
|
Answer
|
Carry Value
|
0 + 0
|
0
|
0
|
0 + 1
|
1
|
0
|
1 + 0
|
1
|
0
|
1 + 1
|
0
|
1
|
HEXADECIMAL NUMBER OPERATION
-HEXADECIMAL NUMBER OPERATION-
-HEXADECIMAL ADDITION-
HMMMMMMM............
THE HEXADECIMAL NUMBER SYSTEM (BASE 16)
TO UNDERSTAND LETS LEARN THIS....
LETS TRY
TO MORE UNDERSTAND TRY THIS ALSO..
EVALUATE:
(a) 134216 + A49016 (ANSWER = B7DF16)
(b) F4C616 + E76916 (ANSWER = 1DC2F16)
(c) 777.DE16 + AE3.4616 (ANSWER = 125B.2416)
-HEXADECIMAL SUBTRACTION-
MORE:
8-1 A-1+6 C+16- 2 D E = 5 C(25-13) E (28-14)
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Tuesday, November 19, 2013
NUMBER SYSTEM BASE
Most of the numbering system will have a base.The maximum number that can be represented on the single digit or number is called a base
Table 1:The types of number system
System
|
Base
|
Possible digits
|
Binary
|
2
|
0 1
|
Octal
|
8
|
0 1 2 3 4
5 6 7
|
Decimal
|
10
|
0 1 2 3 4
5 6 7
8 9
|
Hexadecimal
|
16
|
0 1 2 3 4
5 6 7
8 9 A
B C D
E F
|
Table 1:The types of number system
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