Please guys i just need to really understand how programmimg work,
how where ICs been programmed before the developement of softwares :?: :?: :?:
Thanx.
Please guys i just need to really understand how programmimg work,
how where ICs been programmed before the developement of softwares :?: :?: :?:
Thanx.
Your question is fairly meaningless?, most IC's are not programable, and never were. It's only a fairly small range of chips which can be programmed, probably the earliest ones were ROM's and EPROM's?. Most IC's are designed and built to perform a particular job, no programming involved anywhere (basically built just as you would a discrete circuit - with slight changes for the medium employed).
Programming means creating code to serve a purpose.
IC's are normally not pre-programmed, unless they are in your computer. Your bios is a programmed IC.
When buying programmable IC's, you must program them yourself.
If the IC's you refer to are simple ones like logic gates, they aren't programmed, they are actually hard-coded. In other words, the manufacturers created a circuit for the IC which serves the intended purpose.
Hi guys u all made good points and thanx 4 that.
I think i should just ask my question like this : IN PIC, FLASH MEMORIES AND SO ON, HOW ARE THE 1S AND 0S ARRANGE AND STORE IF WE ARE TO EXAMINE ITS PHYSICAL CIRCUIT
in pic and flash ..the 1s ans 0s are not stored as phy ckts..so that u can see..
it is stored a 'locked' electrical charge in the gate of mosfet etc..
during reading we check whether an electrical charge exists on that gate of a mosfet (eg:-1) or if no charge then consider it as 0. and writing is the reverse process ..