<p>Exercise:</p><p>1. Video Clip: Vintage Hardware</p><p> i. How did the IBM 407 Accounting Machine patch panel operate? </p><p> ii. How did the fixed-head hard drive operate? What was its total memory capacity? </p><p> iii. How did the core memory hard drive operate? What was its total memory capacity?</p><p> iv. When was the first floppy disk invented? By whom? What was it used for? </p><p>2. IP Address  Square ware</p><p>3. Your friend emails you his password. For security concern, he encrypted the content and send you two separate emails. A) in the first email, you received a message “HELLO, Victor!” B) in the second email, he sends you the instruction to decipher the code: a. Take the underlined letters b. Convert each letter into binary code using ASCII table c. Find the 1st and 3rd bits for each byte (counting from right to left). Reverse them (NOT operation) d. Convert the new bytes into letters. Write down your deciphered code. </p>