review Mid exam

What is a data structure? List several types of common data structures?

the data structure is a related group of primitive data elements organized for some type of common processing and is defined or manipulated in software. the common data structures are character strings or arrays, records and files.

List at least five types of resources that computers on a local area network of wide area network can share?

Program ( software ) files, I/O devices, sound and video files, database, text files and web page.

what is excess notation? what is twos complement?

it's a format that can be used to represent singed integers with fixed numbers of bits; basically; it's divides a range of ordinary binary numbers in half, uses the lower half for negative values and the upper half for non negative half.

What is CUP? What are its primary components?

it's central processing unite, which is the brain of the computer system. registers, arithmetic logic unit,

what is the address? what is pointer?

location of data elements in storage device; often used in a data structure or a set of number that represent storage location in a storage devices. Pointer is a date element containing the address of another data element. Pointers and addresses are used to tie together parts of data structure such as linked or indexed file.