Answer:
This is because, the advertisers report the storage space in decimal while the computer reads the storage space in binary.
Explanation:
The advertisers report the storage space in decimal or base 10 because humans count in decimal, whereas the computer reports the storage space in binary or base 2.
Since the computer storage is in bytes and 8 bits equal 1 byte, It is easier to write a storage space of 1 kB as 1000 B but it is actually supposed to be 1024 B(2¹⁰). So, there is a discrepancy of 1024 B - 1000 B = 24 B.
As we go higher, the discrepancy increases. For example, 1 MB is advertised as 1000 kB = 1000000 B but is actually supposed to be 1024 kB = 1024 × 1024 B = 1048576 B. So, there is a discrepancy of 1048576 B - 1000000 B = 48576 B.
So, the actual number of bytes on the storage device is actually less than that reported due to the different number systems in which they are reported in. This discrepancy is less in memory cards or flash drives though in which the stated value of storage capacity might be the actual storage size.
Note that the base 10 or decimal system was chosen by advertiser since this is what consumers understand.
Answer:
Explanation:
A relational database is designed to enforce the uniqueness of primary keys by allowing only one row with a given primary key value in a table. A foreign key is a column or a set of columns in a table whose values correspond to the values of the primary key in another table.
The requirements are mainly written in a feature style notation, using some state charts,
context diagrams and other techniques to describe certain parts of the system. See, for
example, Software Requirements - Styles and Techniques [Lauesen00].
The functional requirements are divided into four sections. The three modules in figure 1
are developed by separate groups, each responsible for unit testing. All requirements for
the taxi, central and communication link component are written in a feature style notation.
In addition, a special part of the taxi component is the positioning system. This is dealt
with separately since there are special requirements present on this component.
The functional requirements consist of four sections: Taxi (3.1), Central (3.2), Communication
link (3.3) and Positioning system (3.4).
