engineering sample samples qualification cpu processor prozessor information mhz pictures core frequency chip packaging info ic x86 museum collection amd cyrix harris ibm idt iit intel motorola nec sgs sgs-thomson siemens ST signetics mhs ti texas instruments ulsi hp umc weitek zilog 4004 4040 8008 808x 8085 8088 8086 80188 80186 80286 286 80386 386 i386 Am386 386sx 386dx 486 i486 586 486sx 486dx overdrive 80187 80287 387 487 pentium 586 5x86 386dlc 386slc 486dx2 mmx ppro pentium-pro pro athlon duron z80 sparc alpha dec dirk oppelt
8008 class ICs
8008 information
The Intel 8008 was an early CPU designed and manufactured by Intel, introduced in April, 1972.

The chip (limited by its 18 pin DIP packaging) had a single 8-bit bus and required a very large amount of external logic to support it. For example the 14-bit address, which could accesss 16K bytes of memory, needed to be latched by some of this logic in an external Memory Address Register (MAR). It could access 8 input ports and 24 output ports.

While a little slower (in terms of MIPs) than the 4-bit Intel 4004 and Intel 4040, the fact that it processed data 8-bits at a time and could access significantly more RAM actually gave it 3 to 4 times the true processing power of the 4-bit chips.

For controller and CRT terminal use this was an acceptable design, but it was too difficult to use for most other tasks. Some early computer designs (e.g. the Mark-8, the MCM 782 APL, the NBI Hantu, and the R2E Micral) were based on it, but most would use the later and greatly improved Intel 8080 instead.
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4 8008 chips in collection: show thumbnails
 Eastern Bloc
   8008 VEB Funkwerk Erfurt U808D (GDR)