Byte- 8 bits
KB-Kilobyte 1024
MB-Megabyte 1024^2
TB-Terabyte 1024^3
PB-Petabyte 1024^4
EB -Exabyte 1024^5
ZB-Zettabyte 1024^6
YB-Yottabyte 1024^7
CPU: Microprocessor
- Interprets and executes the instructions in each program.
- Supervises arithmetic and logical data manipulations.
- Communicates with all the other parts of the computer system indirectly through memory.
- An extraordinarily complex collection of electronic circuits.
- Housed along with other chips and electronic components on the motherboard.
Compatibilty
- All software is not necessarily compatible with every CPU.
- Software is written for the Power PC family of processors used in Mactinosh computers won't run on Windows.
- Both systems run on PCs powered by Intel's microprocessor.
- CPUs in the same family are generally designed to be backward compatible.
- Newer processors can process all of the instructions handled by earlier models.
Performance
- Applications require faster machines to produce satisfactory results.
- A computer's overall performance is determined by its microprocessor's internal clock speed.
- Measured in units called giga hertz (GHz) for millons of clock cycles per second.
- THe architechture and word size of the processor.
- High-end stations and servers use 69-bit processors.
- Most PCs and Macintoshes use 32-bit processors.
- Some embedded and special-purpose computers still use 8- and 16-bit processors.
- Techniques for speeding up a computer's performance:
- Parallel processing
- Server clusters
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