Virtual memory
The virtual memory allows the processor to make access to one address space much greater than that actually present in main memory. This method aims to occupy the main memory only ...
Serial Access memory
Mainly used as mass storage ( secondary storage ) and are characterized by a slow reading / writing and a low cost per byte . The data are stored serially on tracks ,...
RAM and ROM memory
The RAM can be organized in two different ways: • Carrier is a decoder and driver n • two-dimensional array, the address is broken into two parts. To reduce the number of address bits sent in parallel, the address is transmitted in two separate moments. The...
Cache memory
The cache memories are memories of small capacities interposed between the processor and main memory . There are also caches interposed between main memory and ...
Memory
The internal memory corresponds to the processor registers. And characterized by high-speed access, high cost and limited space. These normally are made with SRAM. The main RAM memory space is characterized by much higher than that of the internal memory, has the highest access time...
Bus
Bus is a structure that combines two or more component and interfaces. Any value entered on the BUS id readable by all components that are connected to it. The units connected using a trascreiver, which is divided into two parts: driver, which serves to drive the lines...
Input e Output
A subsystem of I / 0 is composed of: Peripherals Unit to control these devices Software for management Each device is associated with a specific interface that connects to the bus. There are several ways to organize the address space of the...
Control Unit
The CPU is the unit that is responsible for loading and executing programs: each instruction is broken down intoa series of microinstructions or elementary steps. Each instruction is also divided into two parts: ...
Assembler language
The assembler programs are composed of: - Instructions: generate machine instruction or opcode, number of bits allocated to the execution of a particular statement ...
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