Divided into l1, l2, and l3, the consists of a small amount of that serves as a holding area. this provides data to the cpu faster than getting it from regular memory or when ram is unavailable because of refreshes.

Divided into L1, L2, and L3, the cache  consists of a small amount of memory that serves as a holding area. This provides data to the CPU faster than getting it from regular memory or when RAM is unavailable because of refreshes.

Explanation:

The cache is the smallest memory (in relation with other types of memory), but the fastest one, due to the proximity of the Central Processing Unit. Indeed its inside the same chip.

There are several levels of cache memory according to the proximity of the CPU, been L1 the closest one and L3 the one that is more "far". The cache memory acts an interchange memory  for the register data inside the cpu, and allows to have information ready in short amount of time, avoiding the slow process of reading the disk everytime.

1971

Explanation:

Intel® 4004 became the first general-purpose programmable processor on the market—a "building block" that engineers could purchase and then customize with software to perform different functions in a wide variety of electronic devices.