Cpu speed, wordlength.8
- 1. Objective: On completion of this period, you would be able to understand: Word Length of CPU Speed of the processor http://improvec.blogspot.in/ 1
- 2. Recap What are input and output devices? Input device is used to enter data into a computer. Output device is used to display its results. http://improvec.blogspot.in/ 2
- 3. Prerequisites What is meant by bit and byte ? Bit: A binary digit is called a bit. bit is the short form of binary digit. Byte: A group of 8 bits is called a byte. http://improvec.blogspot.in/ 3
- 4. Word Length A binary digit is called a bit A group of 8 bits is called a byte The number of bits that a digital computer can process in parallel at a time is called word length. http://improvec.blogspot.in/ 4
- 5. Word Length (contd...) The commonly used word lengths are: 8, 16, 32 or 64 or more. It is a measurement to compute the power of a computer. http://improvec.blogspot.in/ 5
- 6. Word Length (contd...) Computer with longer word length are more powerful. We say 8 bit, 16 bit or 32 bit microprocessor. It indicates the word length. http://improvec.blogspot.in/ 6
- 7. Speed The time required for a computer to execute basic operations. Unit for the speed of the processor is usually in Millions of Instructions Per Second (MIPS). http://improvec.blogspot.in/ 7
- 8. Speed (contd...) The MIPS rating is used to specify the integer computation performance of a processor. The floating point computation performance of a processor is in millions of floating-point instructions per second. http://improvec.blogspot.in/ 8
- 9. CPUs with speed and word length CPU CLOCK SPEED WORD LENGTH (MHz) (Bits) 8088 4.77 8 80286 6-12 16 80386 25-40 32 80486 50-80 32 Pentium (80586) 96-200 64 Pentium Pro 100-200 64 Pentium II 233-300 64 Pentium III 350MHz-1.13GHz 64 Pentium IV 1.5GHz -3.2GHz 64 http://improvec.blogspot.in/ 9
- 10. Summary In this class, we have learnt about Definition of speed Meaning of word length. Different CPUs with speed and word length. http://improvec.blogspot.in/ 10
- 11. Frequently Asked Questions 1. Define speed and word length.? 2. State the relevance of speed and word length for CPU performance? http://improvec.blogspot.in/ 11
- 12. Quiz: 1. Intel’s first popular 32-bit microprocessor was a. 80486 b. 80386 c. 80286 d. 80186 http://improvec.blogspot.in/ 12
- 13. Quiz: 2. The first 4-bit microprocessor is a.4004 b.8086 c.8088 Answer: a http://improvec.blogspot.in/ 13