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| en:multiasm:cs:chapter_3_6 [2026/01/10 10:47] – pczekalski | en:multiasm:cs:chapter_3_6 [2026/03/01 13:57] (current) – [Memory, Types and Their Functions] ktokarz | ||
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| <figure memtriangle> | <figure memtriangle> | ||
| - | {{ : | + | {{ : |
| < | < | ||
| </ | </ | ||
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| <table memhierarchy> | <table memhierarchy> | ||
| < | < | ||
| - | ^ Memory type ^ Average size ^ Access time ^ | + | ^ Memory type ^ Average size ^ Access time ^ |
| - | | Registers | + | | Registers |
| - | | Cache | few megabytes | + | | Cache | few megabytes |
| - | | RAM | few gigabytes | + | | RAM | few gigabytes |
| - | | Disk | few terabytes | + | | Disk | few terabytes |
| | Network | | Network | ||
| </ | </ | ||
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| ===== PROM ===== | ===== PROM ===== | ||
| - | PROM (Programmable Read Only Memory) is the kind of memory that can be programmed by the user but can't be reprogrammed further. It is sometimes called OTP - One Time Programming. Some microcontrollers implement such a memory, but due to the inability of software updates, it is a choice for simple devices with a short product lifetime. OTP technology is used in some protection mechanisms to prevent unauthorised changes to software or reconfiguration of the device. | + | PROM (Programmable Read Only Memory) is the kind of memory that can be programmed by the user but can't be reprogrammed further. It is sometimes called OTP - One Time Programming. Some microcontrollers implement such memory, but because |
| ===== EPROM ===== | ===== EPROM ===== | ||