Editing Intel 4004 (section)

===Packaging===
Numerous versions of the Intel MCS-4 line of processors were produced. The earliest versions, marked C (like C4004), were ceramic and used a zebra pattern of white and gray on the back of the chips, often called "grey traces". The next generation of the chips was plain white ceramic (also marked C), and then dark gray ceramic (D). Many of the more recent versions of MCS-4 family were also produced with plastic (P).

<gallery mode="packed">
Intel_C4004_b.jpg|The ceramic C4004 variant without gray traces
Intel_D4004.jpg|The ceramic D4004 variant
Intel_P4004.jpg|The plastic P4004 variant
</gallery>

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