TRS-80 PC-1是第一台实用BASIC语言编程的口袋式便携电脑。实际上这台电脑是Sharp PC-1211，只是由Radio Shack在美国销售。1982年又推出了PC-2，个头相比大了一些。1983年推出的PC-3才真的叫口袋级的电脑，也创造了电脑领域的一个记录。
With physical dimension which seem like a disadvantage, the software and additional features make up for it.
The PC-2 has a faster and more powerful CPU, a better BASIC programming language (built-in), and expansion capabilities beyond those of the PC-1.
All of these improvements impose a high penalty - power consumption. The PC-2 requires 10X the power to operate than the PC-1. As a result, it requires 4 "AA" batteries as opposed to the tiny button-cell batteries of the PC-1.
The RAM/ROM module slot on the back also adds greatly to its size. Application modules can be installed here for instant access.
These include: Games Statistics Personal Finance Business Finance Investment Analysis Chemistry Math and more.
Alternately, addition memory (RAM) can be installed for memory-intensive applications. Radio Shack sold 4K and 8K RAM modules for the PC-2.
While the PC-1 had an attachable dot-matrix printer for application print-outs and listings, the PC-2 has a exciting 4-color plotter capable of printing both text and graphics. An example is seen to the right.
The plotter attachment also provides program loading, data storage and retrieval through a cassette interface.
The next pocket computer in the family, the PC-3 is truly a pocket computer.
Substantially smaller and lighter than the original PC-1, the PC-3 will easily fit in a shirt pocket for maximum portability.
Sharp PC-1500 computer (TRS-80 PC-2) resource page TRS-80 Hardware Manual Download Page Radio Shack PC-2 from R/S Programmable Calculators
简介编辑本段回目录
After the success of the TRS-80 Pocket Computer (a.k.a. TRS-80 PC-1), Sharp also manufactured their PC-1500 (see there for more technical information) in a version for Tandy Radio Shack.
This machine was marketed as the TRS-80 PC-2 (catalog number 26-3601). Internally, it was exactly the same machine. Only the front face design had been changed: the keyboard layout was different, with an additional enter key, and the display had been shifted to the right. Moreover, the colour style was also slightly different, with a light gray instead of brown back of the case.
Some peripherals supplied by Tandy were the "docking station" with 4 colour pen plotter and cassette interface (catalog number 26-3605), 4 and 8 KB RAM module (26-3615 and 26-3616), an external tape interface (26-3605) and an RS-232 interface (26-3612). Of course, all peripherals developed for the Sharp PC-1500 could also be used.
This machine was marketed as the TRS-80 PC-2 (catalog number 26-3601). Internally, it was exactly the same machine. Only the front face design had been changed: the keyboard layout was different, with an additional enter key, and the display had been shifted to the right. Moreover, the colour style was also slightly different, with a light gray instead of brown back of the case.
Some peripherals supplied by Tandy were the "docking station" with 4 colour pen plotter and cassette interface (catalog number 26-3605), 4 and 8 KB RAM module (26-3615 and 26-3616), an external tape interface (26-3605) and an RS-232 interface (26-3612). Of course, all peripherals developed for the Sharp PC-1500 could also be used.
主要参数编辑本段回目录
 |  |
| NAME | TRS 80 PC-2 |
| MANUFACTURER | Tandy Radio Shack |
| TYPE | |
| ORIGIN | Japan |
| YEAR | 1982 |
| BUILT IN LANGUAGE | BASIC interpreter |
| KEYBOARD | 66 keys, QWERTY calculator type with numeric key-pad |
| CPU | LH 5801 8-bit CMOS |
| SPEED | 1.3 MHz |
| RAM | 3.5 KB expandable up to 19.5 KB with a 16 KB RAM module |
| ROM | 16 KB |
| TEXT MODES | 1 line x 26 chars. (LCD screen) |
| GRAPHIC MODES | 7 x 156 pixels |
| COLORS | Monochrome |
| SOUND | One-channel Beeper, with frequency and duration controllable by BASIC statement |
| SIZE / WEIGHT | 19.5 (W) x 8.6 (D) x 2.55 (H) cm / 375 g (with batteries) |
| I/O PORTS | Proprietary 60 pin expansion bus, 40-pin slot for memory and program modules |
| BUILT IN MEDIA | None |
| POWER SUPPLY | 4 x AA 1.5V batteries, 50 hours run time (0.13W) - 6V DC external AC adaptor EA-150 |
| PERIPHERALS | 26-3615 4 kB RAM 26-3616 8 kB RAM 26-3605 4 colours plotter and cassette interface 26-3605 external tape interface 26-3612 RS-232 interface |
| PRICE | $280 |
详解编辑本段回目录
With physical dimension which seem like a disadvantage, the software and additional features make up for it.
The PC-2 has a faster and more powerful CPU, a better BASIC programming language (built-in), and expansion capabilities beyond those of the PC-1.
All of these improvements impose a high penalty - power consumption. The PC-2 requires 10X the power to operate than the PC-1. As a result, it requires 4 "AA" batteries as opposed to the tiny button-cell batteries of the PC-1.
The RAM/ROM module slot on the back also adds greatly to its size. Application modules can be installed here for instant access. These include: Alternately, addition memory (RAM) can be installed for memory-intensive applications. Radio Shack sold 4K and 8K RAM modules for the PC-2.
While the PC-1 had an attachable dot-matrix printer for application print-outs and listings, the PC-2 has a exciting 4-color plotter capable of printing both text and graphics. An example is seen to the right. The plotter attachment also provides program loading, data storage and retrieval through a cassette interface.
The next pocket computer in the family, the PC-3 is truly a pocket computer.
Substantially smaller and lighter than the original PC-1, the PC-3 will easily fit in a shirt pocket for maximum portability.
相关链接编辑本段回目录
参考文献编辑本段回目录
http://www.old-computers.com/museum/computer.asp?st=1&c=967
http://oldcomputers.net/trs80pc2.html
http://oldcomputers.net/trs80pc2.html
