
I-18 Computer Fundamentals
• Registers: These are the special-purpose, high-speed temporary memory units. These are temporary
storage areas for holding various types of information such as data, instructions, addresses and the
intermediate results of calculations. Essentially, they hold the information that the CPU is cur-
rently working on. Registers can be thought of as CPU’s working memory, a special additional
storage location that offers the advantage of speed. Registers work under the direction of the CU to
accept, hold and transfer instructions or data and perform arithmetic or logical comparisons at high
speed. The CU uses a data ...