Alice has 2 types of memory, one is type A , it is very fast buy small, it takes 5 mc to read an object and is 10GB . the other memory is type Z. it is 1TB in size and can store . Reading an object takes 200ms Alice is going to build a system where she keeps objects in both memories. She has 2048 objects all the same size. Which use up all of her type Z memory. She wants to anayle different ways she can use the 2 memories.
If alice randomly fill the type A memory and never changes it, what is her expected time to read 10 objects?
Alice now runs a workload where 20 obj per minutes. 50% of the objects she reads in are objects shes has seen in the past 30 sec. the other 50% are randomly take from the full 2048. Using the same naive strategy as before what is her expected average time to read an object?
Now Alice decides that every time she reads an object she will add it to memory A, when she needs to remove something she will remove the oldest object in the memory , what is her new BEST case AVERAGE runtime ? (continuation of q2)
WORST case AVERAGE runtime for 1 obj?

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Check my work the microprocessor is a(n) circuit, which is designed to process data based on a set of instructions. most desktop and laptop devices contain a microprocessor based on the standard. most tablets and smartphones contain processors based on technology. a microprocessor's circuitry is designed to perform a limited number of tasks contained in its set. during processing, an instruction is loaded into the processor's unit. data is loaded into registers in the processor's where arithmetic and logic operations are performed. microprocessor performance can be measured by its speed. other factors affecting overall processing performance include word size, cache size, and instruction set complexity. most digital devices contain only one microprocessor chip, but today's multi- processors contain circuitry that supports parallel processing. computers contain various kinds of memory. random memory is a special holding area for data, program instructions, and the system. it stores data on a temporary basis until the processor makes a data request. ram is different from disk storage because it is , which means that it can hold data only when the computer power is turned on. computers also contain read- memory, which is a type of non-volatile memory that provides a set of "hard-wired" instructions, called the loader, that a computer uses to boot up.

Discuss the ways in which electronic information associated with payments is addressed in terms of security. include encryption, secure sockets layers, and secure electronic transactions in your discussion. are there any other ways that consumers and businesses can keep their payment information secure in an electronic commerce environment? do you feel that your information is safe when conducting electronic business? why or why not?