Radio Shack TRS-80 PC-4 Manuals

Manuals and User Guides for Radio Shack TRS-80 PC-4. We have 3 Radio Shack TRS-80 PC-4 manuals available for free PDF download: Owner's Manual, Service Manual

Radio Shack TRS-80 PC-4 Owner's Manual (72 pages)

TRS-80 PC-4

Brand: Radio Shack | Category: Desktop | Size: 3.06 MB

Table of Contents
5
Chapter 5 Program Caicu Lation
30
Program Outl Ine
30
Program Fundamentals
31
- Substitution Statements
  32
Program Writing and Execution
33
- Program Writing
  33
- Program Execution
  35
Program Editing
37
Program Commands
47
- Input Command (INPUT, KEY)
  47
- Output Command (PRINT, CSR)
  48
- Jump Command (GOTO)
  50
- Judgement Command (if - THEN)
  51
- Loop Command (FOR·NEXT)
  52
  - Subroutine Command (GOSUB, RETURN)
    54
- Stop Command (STOP)
  57
- End Command (END)
  57
- Execute Command (R UN)
  57
- List Command (LIST)
  58
- Output Format (SET)
  59
- Character Functions (LEN, MID, VAL)
  59
  - Option Specifications
    61
    
    Cassette Magnetic Tape (SAVE, LOAD, SAVE A, LOAD A, PUT, GET, VER)
    61
    
    Printer
    63

Radio Shack TRS-80 PC-4 Owner's Manual (70 pages)

Brand: Radio Shack | Category: Handhelds | Size: 9.28 MB

Radio Shack TRS-80 PC-4 Service Manual (34 pages)

PC-4 Pocket computer and cassette interface

Brand: Radio Shack | Category: Handhelds | Size: 1.73 MB

Specifications
2
Block Diagram
4
CPU (Central Processing Unit)
4
- Features
  5
- CPU Block Diagram
  5
- CPU Signal Descriptions
  6
RAM (Random Access Memory)
7
- Ram2
  7
Servicing
8
- Troubleshooting
  9
  - B Key Entry
    9
  - Cram1
    10
  - Discrimination between CPU and RAM1
    11
- Test Program
  12
Program Command List
14
Error Message List
16
- Cassette Interface
  17
Specifications
17
Block Diagram
17
Lsi (Hd43110)
18
Circumference Circuits
19
- Clock Pulse Generator
  19
- Remote Control Circuit
  19
- Shaping Circuit and Filter
  19
Servicing
21
- Disassembly
  21
- Troubleshooting
  22

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