For example, a program that processes the equation “1 + 2 =” inputted
from a keyboard, operates according to the following sequence.
+ 2 =” is inputted using the input device (keyboard)
② “1 + 2 =” is stored in the storage device (main memory)
③ “1 + 2 =” is calculated by the operation device (CPU)
④ The result “3” is stored in the storage device (main memory)
⑤ “3” is displayed by the output device (display)
① “1
2
Basic framework of CPUs
An “MPU” is a device which contains
CPU functions on a single “large-scale
integrated (LSI)” circuit. For computers,
a CPU is sometimes called an “MPU.”
Abbreviation for “Micro Processing
Unit.”
Reference
Chip
A “chip” is a component that makes up
an electronic part such as a CPU. Chips
are small in size and measure just a
few millimeters on each side. Electronic
circuits are embedded into the chip.
Computer system
(1)CPU
The CPU incorporates “control” functions that send instructions to the
various devices, and “operation” functions that perform calculations according to instructions contained within programs.
Due to increasing miniaturization, some CPUs are now small enough to fit
on a fingertip.
MPU
Chapter 8
The CPUs of earlier computers were comprised of multiple chips, but advancements in technology have enabled the CPU to be contained on a single chip. A CPU that is comprised of a single chip is called a “microprocessor.”
The basic framework and functions of a CPU are summarized below.
Reference
●CPU throughput
The processing speed of a computer is heavily influenced by the performance of the CPU. A CPU is categorized by the number of bits it can process at one time. A “16-bit CPU” and “32-bit CPU” can process 16 and 32
bits at a time respectively. Higher bits indicate greater throughput and a
higher performance CPU.
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