Specify the number of registers and memory cells required in a 128 x 4 memory chip?
16. Specify the number of registers and memory cells required in a 128 x 4 memory chip?
In the context of a memory chip, the notation "128 x 4" refers to the organization of the memory cells within the chip. The first number (128) indicates the number of rows, and the second number (4) indicates the number of columns. Each memory cell stores a certain amount of data, often referred to as a "bit."
number of registers and memory cells required in a 128 x 4 memory chip |
Let's break down the specifications:
1. Number of rows (128): This means that the memory chip has 128 rows of memory cells. Each row corresponds to a unique memory address.
2. Number of columns (4): This means that each row has 4 memory cells in parallel. Each column stores a different bit of data.
So, for each row, there are 4 memory cells, and each cell stores 1 bit of data. The chip's total storage capacity is given by the product of the number of rows and the number of columns:
Total number of memory cells = Number of rows x Number of columns
Total number of memory cells = 128 rows x 4 columns
Total number of memory cells = 512 memory cells
This memory chip has a total of 512 memory cells, and each memory cell stores 1 bit of data.
Regarding registers, the term "registers" can refer to different types of storage elements within a computer system, including processor registers, cache memory, and other specialized storage units. The specifications you've provided (128 x 4) pertain to a memory chip's organization and do not directly relate to the number of registers in a CPU or other parts of a computer system.