Tandy 1000 Technical Reference Manual

Tandy 1000
Technical Reference Manual
J11 -
Parallel Interface
(34-Pin Card Edge)
1 PPSTROBE*
2 Ground
3
PPDATAO
4
Ground
5
PPDATA1 6 Ground
7
PPDATA2
8 Ground
9
PPDATA3
10
Ground
11 PPDATA4
12
Ground
13 PPDATA5
14
NC
15
PPDATA6 16
Ground
17 PPDATA7 18 Ground
19
PPACK*
20 Ground
21 PPBUSY 22 Ground
23
PPPAEM 24
Ground
25
PPBUSY*
26 NC
27 Ground 28 PPFAULT
29 NC 30
PPINIT* .
31 Ground
32 PPAUTOFEED*
33 Ground 34
NC
J12 - Light Pen
(9-Pin Connector Male
Rt. Angle D-Subminiature)
1
+5 VDC
2
Ground
3
LPIN 4 LPSW*
5
NC 6 NC
7 NC 8
NC
9
NC
J13 -
RGBI Video
(9-Pin Socket
Rt. Angle D-Subminiature)
1
Ground 2 Ground
3 Red 4
Green
5 Blue 6 Intensity
7
+ 12 VDC 8 HSYNC
9
VSYNC
J14 -
Composite Output
(Dual
Rt. Angle RCA-Type Phone Jack)
A - Video
B - Audio
9

Tandy 1000 Specifications

General

Processor	Intel 8088
Processor Speed	4.77 MHz
RAM	128 KB (expandable to 640 KB)
Operating System	MS-DOS 2.11
Manufacturer	Tandy Corporation
Release Year	1984
Storage	Single or double 5.25" floppy disk drive (360 KB), optional hard drive
Sound	Tandy 3-voice sound
Ports	Parallel, Serial
Graphics	CGA (Color Graphics Adapter)
Graphics Modes	320x200, 640x200