Question

Basic unit of data transfer from the disk to the computer main memory is one block. In general, a data item (what is read or written) will be the field of some record in the database, although it may be a larger unit such as a ___ or even a ___.

1) byte
2) sector
3) cluster
4) page

Answer 1

In computer storage, a data item may be part of a record in a database, or a larger unit like a 'page' or a 'sector'. Data is stored in bytes and larger units are measured in KB, MB, GB, and TB.

Step-by-step explanation:

The basic unit of data transfer from the disk to the computer main memory is one block. Generally, a data item (what is read or written) is a part of some record in the database, but it may also be a larger unit such as a page or even a sector. In computer storage and memory, data is processed and stored in bytes, with each byte consisting of 8 bits. In the digital realm, information like cell phone conversations and television voice and video images are transmitted as a sequence of binary ones and zeros, which translate to sequences of bits. The sizes of computer storage and memory are measured in units such as kilobytes (KB), megabytes (MB), gigabytes (GB), and terabytes (TB), with one KB equal to 1,024 bytes, or approximately 1,000 characters.