From the IBM Canada web site ...

General information

Machine type: 5160
Announce date: March 8, 1983
List price: $7545.00 (5160-087)

Excerpt from the original announcement letter;

"The XT System Unit is the heart of the computer system. The XT System Unit and its companion keyboard are rugged and easy-to-use, and control a variety of input/output devices. Each XT System Unit comes with 128KB (131,078 bytes) of memory, a dual-sided (368,640 bytes) Diskette Drive, and a 10MB (10,240,000 bytes) Fixed Disk Drive. Asynchronous Communications (Async) is also standard on each XT System Unit. This provides an EIA-RS232C interface, which has a variety of uses. Based on a high performance Intel 8088 microprocessor, each XT computer includes an enhanced version of the popular BASIC language and provisions for attachment of a video display. The system can be further expanded through options that are customer installed."

System Characteristics

Physical description
Power supply: 130w
Weight: 12.7 - 13.9 kg
Dimensions (HxWxD): (147 x 498 x 410mm)

Mass storage
Drive bays: 2 full height
Floppy Disk
Size: 5.25 inch full height
Capacity: 360KB
Hard disk
Size: 5.25 inch full-height
Capacity: 10MB or 20MB
Access time: >85ms
Interface: ST-506

Size: 11.5 inch (diagonal)
Display type: Optional IBM Monochrome Display (5151) - TTL green phosphor screen
Graphics modes supported: MDA (text 25 rows x 80 characters)

Type: 83 key or 101 key enhanced

Operating system: IBM PC DOS Versions 2.0 and later for models 68,78,87, and 86 and Version 3.1 or later for models 267,277,88,268,278, and 89

And XT stood for eXtended Technology