There are three varieties of pentagrids.

Initial type - 6A7 type (converter).

Grid 1 - oscillator grid,

Grid 2 - oscillator anode,

Grid 3 - screen grid,

Grid 4 - signal grid,

Grid 5 - screen grid.

Development - 6SA7/1R5 type (converter).

Grid 1 - oscillator grid,

Grid 2 - screen grid,

Grid 3 - signal grid,

Grid 4 - screen grid,

Grid 5 - suppressor grid.

Development - 6L7 (mixer).

Grid 1 - signal grid,

Grid 2 - screen grid,

Grid 3 - oscillator injection grid,

Grid 4 - screen grid,

Grid 5 - suppressor grid.

There are a few similarities and differences between grid computing and cloud computing. Both are scalable and allow multitenancy as well as multitasking. Unlike grid computing, cloud computing is a relatively recent development and doesn't require infrastructure. Cloud computing is ideal for business that need more virtual space but do not want to invest in new equipment. Grid computing, on the other hand, uses the resources from a number of computers at the same time.

It is a Punnett Square :]

figure out location

a coordinate grid is a grid that has coranades on it (ex.(4,7))