statistics
Measures of Central Tendency (Measures of Position) ) مقاييس النزعة المركزية (مقاييس الموضع
1- Introduction
It’s a numerical measures used to measure the data
concentrate position or cluster. In general the data is
tend to be concentrated around a particular values.
Microprocessor AND Microcomputer
The pins of a 8085 microprocessor can be classified into seven
groups.
1.Address bus
A15 – A8 at pin no. 28 to pin no. 21, it carries the most significant 8-
bits of memory and I/O address. The microprocessor can address
directly 65536 memory locations or 64k memory locations using 16-
address lines (A15-A0). Pin no. 28 to pin no. 21 give us the higher
order 8-bits of the address (A15-A8).
AD7–AD0 at pin no. 19 to pin no. 12 are used for dual purpose. It is
time multiplexed lower 8-bit address bus (A7-A0) and 8-bit data bus