Skip to content
OtisamLMS
Sign in Sign up
Computing

Computing · Quick practice · answer shown after each question

Data representation

Question 1 of 10

Question 1 of 10

ASCII uses 7 bits to represent

Question 2 of 10

Question 2 of 10

Convert the hexadecimal number 1F to denary.

Question 3 of 10

Question 3 of 10

Convert decimal 200 to hexadecimal.

Question 4 of 10

Question 4 of 10

A colour image with 8 bits per pixel can show how many colours?

Question 5 of 10

Question 5 of 10

ASCII code 65 represents

Question 6 of 10

Question 6 of 10

A colour image 100 × 100 pixels at 24 bits per pixel needs

Question 7 of 10

Question 7 of 10

Convert denary 255 to hexadecimal.

Question 8 of 10

Question 8 of 10

Adding binary 0111 and 0011 gives

Question 9 of 10

Question 9 of 10

1 kibibyte equals

Question 10 of 10

Question 10 of 10

A bitmap image is made up of tiny dots called

Questions written by OtisamLMS in the style of the WASSCE. They are not WAEC past questions.