Tatung TPC-2OOO, Instruction Manual

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SECTION II
SYSTEM DESCRIPTION
Introduction
A typical microcomputer system consists of a CPU (Central Processing
U n i t ) , input, o u t p u t , storage devices, and a program called the
Operating System.
The CPU is a single integrated circuit chip, called microprocessor, it
is the heart of the system. Its function is to obtain instructions from
the memory and perform the desired operations.
The input device is a keyboard. Typical output devices includes
Ray Tube) and printer.
Storage devices include computer's internal Random Access Memory (RAM),
Read Only
and the magnetic floppy disks. The RAM is
volatile storage, it must have power applied to retain its information.
The floppy disks are non-volatile storage because they retain their
information regardless of power application.
The Operating System program enables the computer to accept directions
from the user and it must be loaded into the computer before the
computer can do the function. The Operating System accepts and
interprets commands from the keyboard, reads from and writes to the
floppy disks, communicates with the output device(s), and keeps track
of where information is stored on the disks.
The TATUNG TPC-2000 Integrated desktop microcomputer system is a single
user
it is a compact and very attractive desktop unit. The
standard system consists of the processor unit, CRT display, detachable
keyboard and dual slim line
disk drives.
2.2 Hardware Overview
The TATUNG TPC-2000 computer includes a Z80A (4MHz) microprocessor, two
slim line 5 1/4" mini-floppy diskette drives. Each system also include
bytes RAM and bytes ROM for m a i n memory, bytes RAM and
bytes ROM for display memory.
Standard system includes a serial RS-232C interface port for printer;
baud rate of 110, 300, 600, 1200,
4800, 9600, or 19200 bps can be
selected through software or by hardware switch; one Centronics type
interface for parallel printer.