What is ROM cell

Question

Explain the term ROM cell. Describe in brief

Answer 1

The structure of a ROM is simple. A cell is located at each position where a row line crosses a column line. At cell locations where a 1 is stored, a voltage controlled switch is connected between the row line and the column line at that location. At cell locations where a 0 is stored there is no connection between the row line and the column line. To read a memory location, apply a voltage to that row line.