Tandy 1000 Owner's Manual

Specifications C
Performance
Operation mode
Receive
frequencies
Answer
Originate
Transmit frequencies
Answer
Originate
Transmit level
Receive sensitivity (NO ERROR)
Carrier detect sensitivity
Baud rate
Output impedance
Telephone dialer (auto-originate mode)
Pulse dialing
Touch-tone dialing
Phy sical/environment a1
Operating temperature
Humidity
Operating environment
Storage
Dimensions (PC Board size)
Hayes protocol
Full or half duplex
Automatic answer/originate
Manual answer
/ originat e
Mark
1270 Hz
Space 1070 Hz
Mark 2225 Hz
Space 2025 Hz
Mark 2225 Hz
Space 2025 Hz
Mark 1270 Hz
Space 1070 Hz
- 13 dBm
-35 dBm
-40 dBm
300 bps
600 ohms
Dialing rate (slow),
10 pps
Breaking ratio (slow),
60%
Interdigital pause (slow),
820 mS
Duration
of signals (slow),
100 mS
Interdigital time (slow),
100 mS
55 OF-85 "F (1 2.8 O C-29.4" C)
90%
relative humidity (non-
condensing)
90% (non-condensing)
(140 x 100mm)
4.602 (130g)
5 - 1 /2 " x 3 - 1 5 / 1 6 "
Weight
39

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