There's no such thing. The iphone does not have a memory chip you can plug in. If you mean internal spare parts then ebay.
what is the function of the wr signal on memory chip
On-chip memory is a memory that resides on microcontroller itself. e.g RAM. It may be one of the Internal RAM or Special Function Register (SFR). Off-chip memory is external ROM or EPROM.
what should happen is nothing at all your memory is suppose to be stored internally into your iPhones memory witch is a memory chip that can not be upgraded unless the phone itself is exchanged only memory that can be updated is when you free up your memory but point is the sim card does not change your memory in a iPhone.
No, you can not upgrade your iPhone 3G memory.
BIOS chip
32gb is the largest a iphone goes w memory
No.
no
Registers represent the number of memory locations. A 2K memory chip has 2x1024=2048 memory locations. Hence there are 2048 registers in a 2K memory.
To install laptop memory, you will need to first consult the instruction manual. Afterwards, you can buy the memory chip, open up the laptop and then place the memory chip inside.
It is integrated with Processor. Also called Cache Memory.
why not??? but it would have to be a pretty small chip!!!