Exercise 1.2 1.2.1 [10] <1.3> For a color display using 8 bits for each of the primary colors

(red, green, blue) per pixel and with a resolution of 1280 × 800 pixels, what should be the size (in bytes) of the frame buffer to store a frame?

1.2.2 [5] <1.3> If a computer has a main memory of 2 GB, how many frames could it store, assuming the memory contains no other information?

1.2.3 [5] <1.3> If a computer connected to a 1 gigabit Ethernet network needs to send a 256 Kbytes fi le, how long it would take?
1.2.4 [5] <1.3> Assuming that a cache memory is ten times faster than a DRAM memory, that DRAM is 100,000 times faster than magnetic disk, and that fl ash memory is 1000 times faster than disk, fi nd how long it takes to read a fi le from a DRAM, a disk, and a fl ash memory if it takes 2 microseconds from the cache memory?