A-Level 1.4.1 Data Types – Binary Numbers

Using two’s complement convert the denary number −43 into an 8 bit binary number. You must show your working.

Convert the denary number 43 into an 8 bit binary number.

A supermarket uses a stock control system. Details of products are stored on a stock database. The quantity of a particular product in stock is stored as a binary number usingtwo bytes. There are 312 tins of beans left in stock. How would this quantity be represented as a binary number in the computer?