Explain the following terms :-
a) Blu-Ray
b) Cache Memory
c) Line Printer and its types.
Answers
BLU-RAY
Blu-ray is an optical disc format such as CD and DVD. It was developed for recording and playing back high-definition (HD) video and for storing large amounts of data. ... Blu-ray discs can hold more information than other optical media because of the blue lasers the drives use.
CACHE MEMORY
Cache memory is an extremely fast memory type that acts as a buffer between RAM and the CPU. It holds frequently requested data and instructions so that they are immediately available to the CPU when needed. Cache memory is used to reduce the average time to access data from the Main memory.
Line Printer and its types.
A line printer prints one entire line of text before advancing to another line. Most early line printers were impact printers. ... Line printers print a complete line at a time and have speeds in the range of 150 to 2500 lines per minute. The types of line printers are drum printers, band-printers, and chain printers.