TechCorners

Posts

Showing posts from March, 2014

ABOUT HTML MARKUP LANGUAGE

STRUCTURE OF HTML DOCUMENT: HTML document are structured into two parts: HEAD BODY HEAD: Head contain information about the document that is not displayed with the document such as TITLE. BODY: contains the text of the body that is material to be displayed with the document. <HTML> <HEAD> <TITLE> ------------- ...

DIFFERENCE BETWEEN DBMS AND RDBMS

Sl.# DBMS RDBMS 1 Introduced in 1960s. Introduced in 1970s. 2 During introduction it followed the navigational modes (Navigational DBMS) for data storage and fetching. This model uses relationship between tables using primary keys, foreign keys and indexes. 3 Data fetching is slower for complex and large amount of data. Comparatively faster because of its relational model. 4 Used for applications using small amount of data. Used for complex and large amount of data. 5 Data Redundancy is common in this model Keys and indexes are used in the tables to avoid redundancy. 6 Example systems are dBase, Microsoft Acces. Example systems are SQL Server , Oracle .

DIFFERENCES BETWEEN C AND C++

C C++ 1. C is Procedural Language. 1. C++ is non Procedural i.e Object oriented Language. 2. No virtual Functions are present in C 2. The concept of virtual Functions are used in C++. 3. In C, Polymorphism is not possible. 3. The concept of polymorphism is used in C++. Polymorphism is the most Important Feature of OOPS. 4. Operator overloading is not possible in C. 4. Operator overloading is one of the greatest Feature of C++. 5. Top down approach is used in Program Design. 5. Bottom up approach adopted in Program Design. 6. No namespace Feature is present in C Language....

FLIP-FLOP BEHAVIOUR & CHARACTERISTICS EQUATION

Summary of the Types of Flip-flop Behaviour Since memory elements in sequential circuits are usually flip-flops, it is worth summarising the behaviour of various flip-flop types before proceeding further. All flip-flops can be divided into four basic types: SR , JK , D and T . They differ in the number of inputs and in the response invoked by different value of input signals. The four types of flip-flops are defined in Table 1. Table 1. Flip-flop Types FLIP-FLOP NAME FLIP-FLOP SYMBOL CHARACTERISTIC TABLE CHARACTERISTIC EQUATION EXCITATION TABLE SR S R Q (next) 0 0 Q 0 1 0 1 0 1 1 1 ? Q (next) = S + R'Q SR = 0 Q Q (next) S R 0 0 0 X 0 1 1 0 1 0 0 1 1 1 X 0 JK J K Q (next) 0 0 Q 0 1 0 1 0 1 1 1 Q' Q (next) = JQ' + K'Q Q Q (next) J K 0 0 0 X 0 1 1 X 1 0 X 1 1 1 X 0 D D Q (next) 0 0 1 1 Q (next) = D Q Q (next) D 0 0 0 0 1 1 1 0 0 1 1 1 T T Q (next) 0 Q 1 Q' Q (next) = TQ' + T'Q Q Q...

LECTURE BREAKUP OF PHP MYSQL

PHP+MYSQL Introduction Basic Syntax Variable & it's Scope I/O & Comment String & it's Function Operator & Expression Decision Control Case Control Loop Control Arrays & Function Form Handling State Management - Cookies State Management - Session Mail Concept Working with File Date/Time Functions Introduction MySQL Environment Database Concept Datatype Query processing Statements Query processing based on condition Database Connectivity Database Operation With GUI Import/Export Database

IP ADDRESS CLASSES

IP address classes Class 1 st Octet Decimal Range 1 st Octet High Order Bits Network/Host ID (N=Network, H=Host) Default Subnet Mask Number of Networks Hosts per Network (Usable Addresses) A 1 – 126* 0 N.H.H.H 255.0.0.0 126 (2 7 – 2) 16,777,214 (2 24 – 2) B 128 – 191 10 N.N.H.H 255.255.0.0 16,382 (2 14 – 2) 65,534 (2 16 – 2) C 192 – 223 110 N.N.N.H 255.255.255.0 2,097,150 (2 21 – 2) 254 (2 8 – 2) D 224 – 239 1110 Reserved for Multicasting E 240 – 254 1111 Experimental; used for research Note: Class A addresses 127.0.0.0 to 127.255.255.255 cannot be used and is reserved for loopback and diagnostic functions. Private IP Addresses Class Private Networks Subnet Mask Addr...