Radio Shack TRS-80 Model 4 User Manual

~"
Introduction
About the Model 4/4P
Congratulations on the purchase of your TRS-80 Model 4 or Model
4P Disk System. Your new Model 4 or Model 4P is a compact
computer that
is perfect for business needs, as well as personal use.
You will find it to be a valuable tool which will save you work as well
as give you hours of enjoyment. Its basic features include:
•
64K (65536 characters) of random access memory, expandable to
128K
• High-speed
Z-80A microprocessor, the "brains" of the computer
• Upper and lower case text display of
80 characters by 24 lines or
64 by 16 (software selectable)
• Compatible with Radio Shack's Model
III Software Library.
• One or two built-in drives that let you use single-sided,
dOUble-density floppy disks.
• Sound generation.
•
70-key console keyboard which includes three function keys and
numeric keypad.
• Built-in printer interface.
As your needs grow - you can expand your Model 4 or Model 4P to
include hard disks, external floppy disk drives (Model 4 only),
high-resolution graphics, printers, RS-232C communications and
more.

Radio Shack TRS-80 Model 4 Specifications

General

Brand	Radio Shack
Model	TRS-80 Model 4
Category	Desktop
Language	English