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Topic 6 - Further System Fundamentals

6.1 - Processor Configuration

6.1.1 Describe the function of the following processor components: accumulator, instruction register and program counter.

6.1.2 Explain the role of the above components in the execution of single instructions in the machine instruction cycle.
6.1.2 Extra - Fully detailed diagram

6.1.3 Describe the function of an interrupt register.

JSR Extra "JSR Extra 6.1.5 - stacks and the machine instruction cycle, plus postfix

6.1.4 Describe how buses link the processor, the random access memory, the read-only memory and cache.

 

6.2 - Magnetic Disk Storage

6.2.1 Outline storage details with reference to blocking, sectors, cynlinders, and heads.

6.2.2 Describe access time in terms of latency (rotational delay), seek time and transfer time.

 

6.3 - Operating Systems and Utilities

6.3.1 Define operating system.

6.3.2 Explain the function of operating systems.

6.3.3 Outline the functions of linker, loader and library manager.

 

6.4 Further Network Fundamentals

6.4.1 Outline the role of the computers used in the separate type of networks: WAN, LAN and the Internet.

6.4.2 Describe the features of communications needed for networking.

6.4.3 Describe packet switching.

6.4.4 Outline the need for protocols in packet switching.

6.4.5 Explain the need for network security and describe how this can be achieved.

 

6.5 Computer/Peripheral Communication

6.5.1 Define port and handshaking.

6.5.2 Define direct memory access (DMA) and buffer.

6.5.3 Define interrupt and polling.

6.5.4 Explain how peripheral devices are controlled with reference to the printer, modem, and disk drive.

6.5.5 Compare the features of DMA, interrupt systems and polling systems.

6.5.6 Compare serial transmission with parallel transmission.