1. Supercomputer


Business-to-business systems



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FIT guidline answers

Business-to-business systems (B2B systems) allow businesses to sell to other businesses, using the Internet or private network to cut transaction costs and increase efficiencies.
B2B—Businesses selling to other businesses
B2C—Businesses selling to consumers
C2B—Consumers bonding together to buy in volume from businesses
C2C—Consumers selling to other consumers
11. Different types of databases such as hierarchical, network, relational, and object-oriented databases
Databases can be organized in 4 ways.

1. In a hierarchical database, fields or records are arranged in related groups resembling a family tree, with child (lower-level) records subordinate to parent (higher-level) records.
2. A network database is similar to a hierarchical database but each child record can have more than one parent record.
3. A relational database relates, or connects, data in different files through the use of a key field. Structured query language (SQL) is an easy-to-use computer language for making queries to a relational database and for retrieving selected records. One feature of most query languages is query by example (QBE), which allows users to ask for information in a relational database by using a sample record to define the qualifications they want for selected records.
4. An object-oriented database uses objects, software written in small, reusable chunks, as elements within database files. An object consists of data in any form and instructions on the action to be taken on the data.
12. What is Operating System (OS), explain its functions
The operating system (OS) consists of the master system of programs that manage the basic operations of the computer.
The 5 features of the OS are booting, CPU management, file management, task management, and formatting:
1. In booting, the OS is loaded into the computer’s main memory.

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