The Dawn of the Personal Computer - Memories of the Early PC Era

Once upon a time, computers were large machines (mainframes) owned by universities, corporations, and government agencies.
They were massive machines that occupied entire rooms, were extremely expensive, and required specialized knowledge to operate.

But look at them now. They have become palm-sized, and we can instantly access information from all over the world, regardless of where we are.

In this article, we will trace the memories of the early days of the "personal computer (PC)," the protagonist of this dramatic change, and explore how it was born and how it transformed our lives and businesses.

1. What is a PC?

1.1 The Hardware and Software Revolution

From the 1960s to the 1970s, the development of semiconductor technology and microprocessors ushered in an era where individuals could own inexpensive, compact computers.

Two major technological innovations were essential for the realization of the PC.

One was condensing the CPU (Central Processing Unit), the brain of the computer, into a palm-sized integrated circuit (IC chip).
This made it possible to shrink computers, which had previously been enormous, down to a size that could fit on a desk.

The other was "software."
Even if hardware (machines) became smaller, it would not be adopted by individuals if it were complicated to use.
The emergence of operating systems (OS) that anyone could easily operate, as well as practical applications like word processors and spreadsheets, transformed the computer from a "researcher's tool" into a "tool for everyone."

1.2 The Etymology and Concept of "Personal Computer"

To begin with, what is a "PC"?
Formally, it is called a "personal computer."

"personal computer"
・personal (individual, private)
・computer (calculator, computing machine)

Literally, it means "a computer for an individual to use."

In other words, the original meaning is "a computing machine for an individual to use themselves."

The background to the spread of the term "personal computer" lies in a movement in the United States.
It was a grassroots movement like the "Homebrew Computer Club" that emerged in the 1970s, where IT geeks and amateurs gathered to build their own computers and use them freely.

What they sought was a computer that could be used for individual creativity and freedom, liberated from the "control" of corporations and governments.

With the concept of "personal" strongly tied to this, its existence was established not just as a machine, but as a "tool to extend individual capabilities."

1.3 The Difference Between "Microcomputer" and "Personal Computer"

Actually, in Japan, the term "maikon" (microcomputer) was widely used before the term "pasokon" (personal computer) became established.
This is an abbreviation for "microcomputer."

Early computers were often things you assembled yourself, like electronic hobby kits, and because they were strongly viewed as hobbyist tools, they were called "microcomputers."

However, in the 1980s, when models like NEC's "PC-8001" appeared—sold as finished products and used practically in homes and businesses—the term "pasokon," an abbreviation of "personal computer," became the mainstream.

2. From the Birth of the PC to Its Establishment

2.1 Movements in the Dawn of the Personal Computer

In discussing the history of the personal computer, the mid-1970s in the United States is indispensable.

(1) 1975: The Arrival of the Altair 8800
It is considered the world's first personal computer.
It was sold as an assembly kit for individuals and was purchased by enthusiastic hobbyists.
Being featured in the magazine "Popular Electronics" became the catalyst for the term "personal computer" to spread.

(2) 1976: The Arrival of the Apple I
This was one of the earliest "personal computers" sold pre-assembled.
It was created by Steve Jobs and Steve Wozniak.

(3) 1977: The Birth of the "Big Three"
The Apple II, Commodore PET, and Tandy TRS-80 appeared one after another.
These were sold as "finished products" and were ready to use immediately by connecting a keyboard and monitor, which boosted their popularity among the general public.
The Apple II, in particular, dramatically streamlined complex manual calculation tasks through its beautiful color graphics and the arrival of VisiCalc, the first spreadsheet software.
This increased the speed of corporate decision-making and solidified the recognition that "the PC is an essential tool for business."

(4) 1981: The Arrival of the IBM PC
With the entry of the giant corporation IBM, the PC established its status as a "business tool."
The abbreviation "PC" for "Personal Computer" became established as a general term.
It laid the foundation for the "open architecture" that is the basic structure of today's Windows PCs.

(5) 1984: The Arrival of the Macintosh
This was an innovative event that shaped the prototype of today's personal computer.
It featured a Graphical User Interface (GUI), the adoption of a mouse, and an all-in-one design.
This Macintosh also had a significant influence on the GUI of later Windows versions.
The main applications at the time of release were MacPaint (drawing software) and MacWrite (word processor).
It was particularly beloved in creative fields (design, DTP, music, etc.) and established Apple's brand image.

2.2 The Establishment of the "PC" in Japan and the Business Revolution

In Japan, the "PC-8001," released by NEC in 1979, served as the bridge from "microcomputer" to "personal computer."
This model, which bore the name "PC," became the spark for the PC boom in Japan due to its high performance and relatively user-friendly design.

Following this, various manufacturers such as Sharp with its "X1" series and Fujitsu with its "FM-7" entered the market, leading to fierce competition.

This competition not only encouraged the development of game culture but also accelerated the development of Japanese-language word processors and spreadsheet software in the business sector, fundamentally transforming desk work in Japanese companies.

3. Historical Significance and the Lingering Echoes

The birth of the PC was not merely a technological innovation.
It was a major event in human history that brought about the "democratization of information."

Bringing the power to handle information, which was once only available to massive organizations, into the hands of every individual.
This can be said to be the greatest historical significance of the personal computer.
Because of this, it became possible for individuals to disseminate information, launch businesses, and connect directly with the world.

Memories of the dawn of the personal computer teach us the truth that "the future is not created by some great inventor, but is entrusted to the hands of ordinary people with passion."

The computer you have in your hands now is the crystallization of that spirit of challenge and freedom.

This story, of course, does not end.
Cloud, AI, quantum computers...
New technologies appear one after another, and we are constantly searching for "what comes after the PC."
However, the spirit at its core—"to expand individual capabilities and change the world"—is a light ignited by the personal computer that will surely be passed on.

Book Recommendations

・Steve Jobs I / II
by Walter Isaacson
Translated by Koji Iguchi
Kodansha (2011/10/24)
From the story of Apple's founding to the secret stories behind the birth of the iPhone and iPad, and up to his retirement, Steve Jobs himself reveals everything. This is a one-of-a-kind record that could only be written because he cooperated fully with the interviews. From legendary presentations to the secrets of management, the content is packed with Jobs' thinking as a business leader. As a business and management book, it overwhelms other similar works.
(* Book descriptions, etc., are generally based on the descriptions on the linked site (Amazon). Please refer to the link for detailed content.)

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・Our PC 30-Year History: Nippon PC Chronicle Kindle Edition
Edited by SE Editorial Department
Shoeisha (2012/12/20)
A Japanese PC history textbook that looks back with photos. It explains the major changes in PCs over more than 30 years in two parts, using many photos and touching on social conditions to make the flow of time easy to understand. Part 1 is dedicated to explaining topics by era, incorporating "testimonies (turning points)" from developers and people involved at the time to reveal behind-the-scenes development stories. Part 2 summarizes PC architecture and other topics by theme.
(* Book descriptions, etc., are generally based on the descriptions on the linked site (Amazon). Please refer to the link for detailed content.)

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