- •In your own words …
- •List the major components …
- •List operations …
- •Call the minimal number of levels of virtual machine..
- •D escribe the functional structure of von Neumann machine.
- •Formulate and analyze Moor’s Law.
- •Instruction
- •Interpreter
- •1 7) Describe the functional structure of Computer components …
- •22) Do we mean under the Interrupts? What is the main reason of using the Interrupt Mechanism?
- •What’s the Main Cycle of Instruction Processing (mcip)?
- •19)Describe the architecture of “Hypothetical Machine”. What is the difference between translator and interpr…
- •OpCode I Address
- •2 3) Draw up diagrams of the Program Flow Control without interrupts and with interrupts, describe each fragment of
- •25) Describe the mechanism of work with interrupts.
- •57. Describe the typical Disk data layout 29. Draw a scheme of dma Transfer
- •What is the interconnection structure, and by which factors is it determined?
- •List the types of exchanges (input and output)
- •What kind of buses does the System Bus include?
- •What do we call the width of a bus?
- •What operation does the control signal “I/o read” set?
- •What problems may arise, when only one (single) bus is used in a computer system?
- •List and describe main generic types of buses.
- •Which methods of arbitration are used now?
- •Describe existed methods of access to different types of memory.
- •Which parameters are used for the estimation memory devices performance?
- •What is ram? Describe distinguishing characteristics of ram. What’s the difference between dram…
- •48)Enumerate elements of Cache Design.
- •4 9)Draw up a block-diagram of Pentium processor and explain functions of its main nodes
- •50) How is ensured the Data Cache Consistency?
- •56. How is evaluated the Disk Access Time... Disk Access Time is the main Characteristic of Disk Performance.
- •60. Describe the process of Virtual Memory..
48)Enumerate elements of Cache Design.
Cache Design
Size (more optimal size: between 1K and 512K)
Mapping Function (direct, associative, set associative)
Replacement Algorithm (LRU, FIFO, LFU, Random)
Write Policy(Information integrity)(Write through, Write back)
Block Size (no definitive optimum value has been found)
Number of Caches (Single- or two-level, Unified or Split)
The Cache Efficiency is characterized by hit ratio. The hit ratio is a ratio of all hits in the cache to the number of CPU’s accesses to the memory.
4 9)Draw up a block-diagram of Pentium processor and explain functions of its main nodes
50) How is ensured the Data Cache Consistency?
Data Cache Consistency
To provide cache consistency the data cache supports a protocol MESI (modified/exclusive/ shared/invalid).
The data cache includes two status bits per tag, so each line can be in one of four states:
Modified: the line in the cache has been modified and it differs from that in the main memory, so it is available only in this cache.
Exclusive: The line in the cache is the same as that in the main memory and also is not present in any other cache.
Shared: The line in the cache is the same as that in the main memory and may be present in another cache.
Invalid: the line in the cache does not contain valid data.
59. a definition of Virtual Memory.. Usually only some parts of a program that are executed are first brought into the main memory; when a new part (segment) of a program is to be moved into the full memory, it must replace another segment already in the memory. In modern computers, the operating system moves programs and data automatically between the main memory and secondary storage. Techniques that automatically move program and data blocks into a physical main memory when they are required for execution are called virtual memory techniques. A special hardware unit, called Memory Management Unit (MMU), translates virtual address into physical address. When the desired data are in the main memory, these data are fetched as of the cache mechanism. If the data are not in the main memory, the MMU causes the operating system to bring the data into the memory from the disk. Transfer of data between the disk and the main memory is performed using the DMA.
51)Why RAID 0 can not be considered as a true member of RAID family? Compare RAID 5 and RAID 6 (illust….
List the well-known Optical Disk products and describe their characteristics.
54) Give an example of CD-ROM block formats.
CD-ROMCompact Disk Read-Only Memory. A nonerasable disk used for storing computer data.The standard
system uses 12-cm disks and can hold more than 650 Mbytes.
55)List the major characteristics of Disk System.
Characteristics of Disk Systems
Characteristic |
Set of Parameters/Possible meanings |
Head Motion |
Fixed head (one per track) Movable head (one per surface) |
Disk Portability |
Non-removable disk Removable disk |
Sides |
Single-sided Double-sided |
Platters |
Single-platter Multiple-platter |
Head Mechanism |
Contact (floppy) Fixed gap Aerodynamic gap (Winchester) |