The IBM 370 mainframe computer was introduced in 1970. The 370 Model 145 could hold up to 512 KB of memory. It cost $1,783,000.00 to buy (or $37,330/month to rent). A notebook computer today holds 16GB of memory and costs $2,500 to buy. If you assume that 100% of the price is just the memory, for both computers:

a. How much did 1 Kbyte of memory in the IBM computer cost?
b. How much does 1 Kbyte of memory in the laptop cost?
c. How many times cheaper is the memory in the laptop than memory in the mainframe?
d. What factor is today’s computer cheaper than the IBM 370?

the answer is d.

by: nicholas dooley

a  social news website  is an  internet  website  that features  user-posted stories. such stories are ranked based on popularity, as voted on by other users of the site or by website administrators. users typically comment online on the news posts and these comments may also be ranked in popularity. since their emergence with the birth of  web 2.0, social news sites have been used to link many types of information, including news, humor, support, and discussion. all such websites allow the users to submit content and each site differs in how the content is moderated. on the  slashdot  and  fark  websites,  administrators  decide which articles are selected for the front page. on  reddit  and  digg, the articles that get the most votes from the community of users will make it to the front page. many social news websites also feature an online comment system, where users discuss the issues raised in an article. some of these sites have also applied their voting system to the comments, so that the most popular comments are displayed first. some social news websites also have a  social networking  function, in that users can set up a user profile and follow other users' online activity on the website.