Manufacturer: IBM
Launches: 1981
Made in: USA
CPU: Intel 8088 @ 4.77MHz
Memory: 16 KB ~ 640 KB
Support: Diskette 5¼"
Hard drive: None
Operative System: PC DOS

Manufacturer: IBM
Launches: 1983
CPU: Intel 8088 @ 4.77MHz
Memory: 128 KB ~ 640 KB
Support: Diskette 5¼"
Hard drive:
Operative System: PC DOS

Manufacturer: IBM
Launches: 1984
CPU: Intel 80286 @ 6MHz
Memory: None
Hard drive:
Operative System: PC DOS

Manufacturer: IBM
Launches: 1984
CPU: Intel 8088 @ 4.77MHz
Memory: None
Hard drive:
Operative System: PC DOS 2.10

This is IBM's first computer designed for the home, with a cost-cutting approach compared to its professional terminals.

Manufacturer: IBM
Launches: 1986
CPU: Intel 80386
Memory: None
Hard drive:
Operative System: PC DOS

Manufacturer: IBM
Launches: 1987
Made in: USA
CPU: Intel 80286 @ 10MHz
Memory: 1 MB ~ 7 MB
Support: Diskette 3½" DD
Hard drive: 20 MB
Operative System: PC DOS 3.3

Manufacturer: IBM
Launches: 1987
Made in: USA
CPU: Intel 8086 @ 8MHz
Memory: 512 KB
Hard drive:
Operative System: PC DOS

It was released a few months after the Model 30. Designed as a low-cost model for the home, it eliminated the MicroChannel bus and replaced it with the previous ISA bus so that users could use more common and cheaper cards.

Manufacturer: IBM
Launches: 1987
Made in: USA
CPU: Intel 8086
Memory: 640 KB
Support: Diskette 3½"
Hard drive: 20 MB
Operative System: PC DOS 3,3
Innovations: They introduced the MCA bus and the connection
for the keyboard and mouse interface, which was also called "PS/2."

The PS/2 keyboard interface is electronically identical to the widely used PC/AT interface, but instead of the 5-pin DIN connector, a 6-pin mini-DIN connector is used.
The mouse interface is physically identical, but very different from the RS-232 used until then.
Adapters existed for both connectors.
And since both connectors (keyboard and mouse) were identical, Microsoft, with the PC 97 standard, assigned them different colors.

Today, the connection of these peripherals has been almost completely replaced by USB.

They were also the introducers of the new VGA video standard.

Manufacturer: IBM
Launches: 1987
CPU: Intel 386SX @ 16MHz
Memory: None
Hard drive:
Operative System: PC DOS

Manufacturer: IBM
Launches: 1990
CPU: Intel 80286 @ 10MHz
Memory: 512 KB
Hard drive:
Operative System: PC DOS 4.01
Innovations: Unlike the innovative PS/2, this was a low-cost model that used common technologies used by all manufacturers of the time, such as the ISA bus, the VGA standard, or the IDE disk connection.

In 1990, IBM returned to the home market, five years after its previous attempt with the IBM PCjr.
The name PS/1 suggested that it was a more limited line than its previous PS/2.
The 2011 model was the first in a line of PS/1s that would be produced until 1994, when they were replaced by the IBM Aptiva.
Its processors evolved from the 286 to the 486, and its memory would also progressively increase.

Manufacturer: IBM
Launches: 1992
Made in: USA
CPU: 80386SX @ 20MHz
Memory: 2 MB
Support: Diskette 3½" DD
Hard drive: 40 MB
Operative System: PC DOS

Manufacturer: IBM
Launches: 1993
CPU: Intel 80486 @ 20MHz
Memory: 1 MB
Hard drive:
Operative System: PC DOS

Manufacturer: IBM
Launches: 1994
CPU: Intel 80486
Memory: None
Hard drive:
Operative System: Windows 3.1
Innovations: Most of the Aptiva series incorporated a modem and a hibernation system.

Manufacturer: IBM
Launches: 1996
CPU: Intel Celeron Coppermine @ 900MHz
Memory: None
Hard drive:
Operative System: Windows 2000

Manufacturer: IBM
Launches: 1997
Made in: USA
CPU: Intel Pentium
Memory: 16 MB ~ 128 MB
Support A: Diskette 3½" DD
Support B: CD
Hard drive: 2147483647 MB
Operative System: Windows 95

The PC 300GL series used Celeron, Pentium I, Pentium II, and Pentium III processors throughout its lifespan. Celeron-based models had processors clocked at 333, 366, 433, 466, 500, or 533 MHz; Pentium I models had processors clocked at 133 or 166 MHz; Pentium II-based models had processors clocked at 350, 400, and 450 MHz; and Pentium III-based models had processors with clock speeds of 450, 500, 533, 550, 600, 667, 733, 800, or 866 MHz.

These systems came in two case types: desktop and microtower.

There were two variants of the desktop case, one with two expansion slots and the other with four. Both variants had four drive bays.
The microtower case had four expansion slots and four drive bays.

Manufacturer: IBM
Launches: 1997
Made in: USA
CPU: Intel Pentium
Memory: None
Support A: Diskette 3½" DD
Support B: CD
Hard drive:
Operative System: Windows

The PC 300XL computer uses the Pentium MMX clocked at 233 MHz or the Pentium II clocked at 233, 266, or 300 MHz.
And it featured built-in 10/100 Ethernet.