The speed associated with the drives determines their transfer rate. ... Speeds doubled to 300KB and continued upward to more than 40 times the original. ... Hard disks provide fast retrieval because they rotate constantly at high speed, from 5,000 to 15,000 rpm. ... The hard drive uses one internal light to select which data is read from the disks. ...

• Word Count: 5237
• Approx Pages: 21
• Grade Level: High School

Today's computers, when contrasted with their predecessors, contain virtually limitless speed and functionality. ... Everything from watches to light bulbs are networked (or connected) together. ...

• Word Count: 7384
• Approx Pages: 30
• Grade Level: High School