Maricopa Community Colleges  ELT243   19956-20022 
Official Course Description: MCCCD Approval: 04/25/95
ELT243 19956-20022 L+L 4 Credit(s) 6 Period(s)
Input/Output Devices
Input and output requirements of a computing system. Emphasis on mechanical, electrical, and logical principles of operation. Prerequisites: ELT131.
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MCCCD Official Course Competencies:
 
ELT243   19956-20022 Input/Output Devices
1. Describe and differentiate between memory access methods such as random, direct, and sequential. (I)
2. Describe functional operation of typical I/O hardware devices, such as magnetic tapes and disks. (II)
3. Describe basic concepts of I/O peripheral interfacing. (II)
4. Identify and use basic terminology used in data communications. (III)
5. Describe basic concepts of computer controlled data communications. (III)
6. Describe the purpose and functions of an operating system. (IV)
7. Operate diagnostic programs to test operation of system hardware devices. (V)
8. Describe the concept of preventive maintenance. (VI)
9. Write and debug programs in assembler language. (VI)
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MCCCD Official Course Outline:
 
ELT243   19956-20022 Input/Output Devices
    I. Introduction
        A. Functional organization of a digital computer system
        B. Memory access methods
          1. Random
          2. Direct
          3. Sequential
        C. Peripheral devices vs communications devices
        D. Input-only devices
        E. Output-only devices
        F. Input/output devices
      II. Peripherals
          A. Magnetic disk subsystem
            1. Functional operation
            2. Typical problems that occur
          B. Magnetic tape subsystem
            1. Functional operation
            2. Typical problems that occur
          C. Printer
            1. Functional operation
            2. Typical problems that occur
          D. Interfacing between a peripheral and the processor input/output
        III. Introduction to data communications
            A. Terminology
            B. Modems
            C. Basic elements of a communications process
            D. Serial and parallel transmission
            E. Modes of transmission
              1. Simplex
              2. Half-duplex
              3. Full-duplex
            F. Serial transmission characteristics
              1. Asynchronous serial transmission
              2. Synchronous serial transmission
          IV. Purpose of an operating system
              A. How an operating system manages sharing of the processor and memory
              B. VAX-11 processor access modes
              C. Context switching
              D. VAX-11 memory structure
              E. VAX-11 page tables
              F. VAX-11 system and process address space regions
              G. I/O interrrupt
              H. VAX-11 exception conditions
              I. Interrupts vs exceptions
              J. Vectors
              K. Software interrupts
            V. The structure of a VAX-11 operating system
                A. VMS process scheduling
                B. Events that cause the process to change states
                C. Paging and swapping under VMS
                D. VMS I/O organization and data base
                E. VMS I/O system components
                F. VMS I/O control flow
                G. VMS utilization of I/O interrupt priority levels
              VI. Applying VAX/VMS input/output
                  A. VAX/VMS system documentation
                  B. Writing a program which interfaces with a terminal
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