PC Xt

Some articles on pc, pc xt, xt:

Industry Standard Architecture - ISA Bus Architecture
... The PC/XT-bus is an eight-bit ISA bus used by Intel 8086 and Intel 8088 systems in the IBM PC and IBM PC XT in the 1980s ... The XT bus architecture uses a single Intel 8259 PIC, giving eight vectorized and prioritized interrupt lines ... provided by the Intel 8237, three of the DMA channels are brought out to the XT bus expansion slots of these, two are normally already allocated to machine functions (diskette drive and hard disk ...
PC/XT - Features
... The XT originally came with 128 kB of RAM, a 360 kB double-sided 5.25 in (133 mm) full-height floppy disk drive, a 10 MB Seagate ST-412 hard drive with Xebec 1210 MFM controller, an Asynchronous Adapter (serial card ... coprocessor) the operating system usually sold with it was PC DOS 2.0 and above ... were an increase over the five in the IBM PC, although three were taken up by the floppy drive and hard drive adapters, and the Async card ...