por Ali Ali 11 anos atrás
274
Mais informações
very impressive! Great start.
focuses on building computer components at the individual atomic and molecular levels.
Optical Computers
possiblity
Quantum
possibilty
Scientists work on many new stratigies to develop the computers, such as pipelining, multiprocessing, parallel processing.
ways to develop is upgrading internet connection, using seconnd hard drive, etc....
synchronizes all of the computer’s activities.
The CPU processes instructions in a sequence called a machine cycle, consisting of
four basic steps.
allows the various parts of the CPU to communicate with each other.
decodes the instructions input into the CPU,
internal cache stores frequently used instructions and data
requests data and instructions before or as they are needed
directs the flow of electronic
traffic between memory and the ALU/FPU and also between the CPU and input
and output devices.
arithmetic/logic unit
which performs integer arithmetic and logical operations on data
floating point unit
performs decimal arithmetic
used to connect peripheral devices to the computers
include PCI, PCI Express (PCIe) bus, Universal Serial
Bus (USB), and FireWire
connects the CPU tothe I/O bridge, which connects the CPU and memory to the rest of the bus architecture.
moves data between the CPU and RAM
electronic path along which bits are transmitted.
used to add functionality to the computer
into which users can insert
expansion cards to give the computer added functionality.
refers to chip-based storage. it contains 3 main things
Register
memory built into the CPU chip to hold data before or during processing.
RAM
twp types of Random Acess Memory, which is repsonsible for running programs temporarily
Nonvolatile
still under development
Volatile
controls programs temporarily
ROM
Read only memory. a type of nonvolative memory that stores nonerasable programs.
CPU is responsible for controlling the speed of the computer and it deals with many processing operations.
CPU chips differ in many respects, such as what types of computer the CPU is designed for, its clock speed, and word size
Different Types
i2 and i4. the higher, the better
the main circuit board for a computer. it controls the CPU
Computers can play multimedia via binary-based code
translated to the machine language
then shown in the monitor
Calculated in B, KB, MB, GB, TB, PB, EB, and other possiblities.
Computer people refer to these 0s and 1s as bits.
Converting data to these 0s and 1s is called digital data representation.
high costs
government
A supercomputer is a computer at the frontline of current processing capacity, particularly speed of calculation.
http://en.wikipedia.org/wiki/Supercomputer
