Both Super Key and Candidate key are used to uniquely identify a record in a table. These keys are also used to create relationship between tables. Both keys can have null values. Both concepts are important for database design and management. Read this article to find out more about super key and candidate key and how they are different from each other. What is a Super Key? In relational databases, a single attribute (or a set of attributes) that are used to uniquely identify all attributes in a relation is referred to as a super key. For example, a ... Read More

Both Primary Key and Candidate key are used to get records from tables. These keys are also used to create relationships between tables. Both primary keys and candidate keys are used to identify the records uniquely in a table. Read this article to find out more about primary keys and candidate keys and how they are different from each other. What is a Primary Key? A primary key helps us to uniquely identify a record in a relational database. a primary key is a unique identifier for each record or row of data. It ensures that no two records ... Read More

A DBMS (Database Management System) is a software that is used to manage a database. It is used to create, update, delete and maintain a database and it provides controlled access to data. An RDBMS (Relational Database Management System) is a type of DBMS that is based on the relational model of data. It can be regarded as an enhanced version of DBMS. Read this tutorial to find out more about DBMS and RDBMS and how they are different from each other. What is a DBMS? DBMS stands for Database Management System. A DBMS stores data in the form of ... Read More

Both Linux and windows are operating systems for desktops. Linux is an open-source operating system which is derived from UNIX. Linux kernel lies beneath all other existing software. Windows was developed by Microsoft. It is not an open-source. It comes with a user friendly GUI which makes it so popular among its users. It runs on x86 hardware such as AMD and Intel processors. Read this article to learn more about the Linux and Windows operating systems and how they are different from each other. Linux Operating System Linux is a free and open-source operating system created and designed by ... Read More

Both DOS and Windows are types of operating systems. DOS is a single-tasking, single-user and CLI-based OS; whereas Windows is a multitasking, multiuser and GUI-based OS. Read this tutorial to find out more about DOS and Windows and how these two operating systems are different from each other. What is DOS? DOS (Disk Operating System) is a character-based operating system that was developed in the 1980s for IBM-compatible computers. DOS is one of the oldest and widely used computer operating systems. It is a set of computer programs. DOS can perform major functions like file management, allocation of system resources, ... Read More

Both DES and AES are symmetric-key block ciphers that are used in encryption where just one key (the secret key) is utilized to encode and decode electronic data. The key must be exchanged between the organizations communicating using symmetric encryption so that it can be utilized in the decryption process.Go through this article to find out the features of AES and DES ciphers and how they differ from each other.What is DES Cipher?The Data Encryption Standard, often known as DES, is a symmetric key block cypher developed by IBM in 1977.Plaintext is divided into two halves in DES encryption, and ... Read More

Ethernet is a set of protocols that are used primarily in LANs, although they can also be used in larger networks like MANs and even WANs. Ethernet was first standardized in the 1980s as the IEEE 802.3 standard. Since then, it has seen several upgrades and its data carrying capacity kept increasing with each upgrade. Standard Ethernet can support data speeds up to 10 Mbps. Fast Ethernet can carry data at a maximum speed of 100 Mbps. With Gigabit Ethernet, the data speeds reached a maximum speed of 1 Gbps. 10-Gigabit-Ethernet can carry data at incredibly high speeds of ... Read More

SDRAM and DDR are two different types of RAM. SDRAM was released in 1993 and the latest variant of SDRAM are DDR1, DDR2 and DDR3. SDRAM stands for Synchronous Dynamic Random Access Memory. SDRAM was very common before the release of DDR. SDRAM is a single data rate memory. On the other hand, DDR stands for Double Data Rate. As the name indicates, DDR provides double data transmission in each clock cycle as compared to SDRAM. Read through this article to find out more about SDRAM and DDR and how they are different from each other. What is SDRAM? SDRAM ... Read More

Volatile memory and non-volatile memory are two distinct types of computer memory with significant differences in terms of their functionality and data storage characteristics. Volatile memory is used for temporary storage and loses its data when the power is removed, while non-volatile memory is used for permanent or long-term storage and preserves data even when the power is off. What is Volatile Memory? Volatile memory is a type of computer memory that requires a continuous power supply to retain data. This means that when the power is turned off or interrupted, the data stored in volatile memory is lost. The ... Read More

Both RAM and HDD are types of computer memory. RAM is used to store computer programs and data that the CPU needs in real time. RAM data is volatile and is erased once the computer is switched off. HDD, hard disk, has permanent storage and it is used to store userspecific data and operating system files. HDD data is static and remains in the computer even if computer is switched off. Read this article to find out more about RAM and HDD and how they are different from each other. What is RAM? RAM stands for Random Access Memory. ... Read More