Binary Shifts (3 marks)
Perform a left binary shift by 2 places on the binary number 10110011. State the new binary number and explain the effect of this shift on the original number’s value.
Binary Shifts (3 marks) Read More »
1.2 – Memory and Storage
Conversion of Denary to Binary (2 marks)
Convert the denary number 157 to an 8-bit binary number. Show your working.
Conversion of Denary to Binary (2 marks) Read More »
Calculating the File Size of a Text File (2 marks)
Given a text file with 1,000 characters where each character is stored using 8 bits, calculate the file size in kilobytes (KB). Use the formula: file size = bits per character x number of characters, and convert the result to kilobytes (1KB = 8,000 bits).
Calculating the File Size of a Text File (2 marks) Read More »
Calculation of Data Capacity Requirements (3 marks)
A digital library needs to store 1,000 ebooks. If the average size of an ebook is 2.5MB, calculate the total storage capacity required in gigabytes (GB). Use 1,000 bytes = 1KB, 1,000KB = 1MB, and 1,000MB = 1GB. Show your working.
Calculation of Data Capacity Requirements (3 marks) Read More »
Calculating the File Size of a Sound File (2 marks)
Given a sound file with a sample rate of 44kHz, a bit depth of 16 bits, and a duration of 3 minutes, calculate the file size in megabytes (MB). Use the formula: file size = sample rate x duration (s) x bit depth, and convert the result to megabytes (1 byte = 8 bits, 1MB
Calculating the File Size of a Sound File (2 marks) Read More »
Calculating the File Size of an Image File (2 marks)
Given an image with a colour depth of 24 bits, a width of 1920 pixels, and a height of 1080 pixels, calculate the file size in megabytes (MB). Use the formula: file size = colour depth x image height x image width, and convert the result to megabytes (1 byte = 8 bits, 1MB =
Calculating the File Size of an Image File (2 marks) Read More »
The Need For Binary In Systems (2 marks)
Explain why computers use binary to store data.
The Need For Binary In Systems (2 marks) Read More »
Advantages and Disadvantages of Using Cloud Storage (4 marks)
Discuss the advantages and disadvantages of using cloud storage as secondary storage for a small business. Consider cost and reliability in your answer.
Advantages and Disadvantages of Using Cloud Storage (4 marks) Read More »
Nibbles – Units of Data Storage (1 mark)
Explain why a nibble is an important unit of data measurement.
Nibbles – Units of Data Storage (1 mark) Read More »
Magnetic VS Solid-State (4 marks)
Describe two differences between magnetic and solid-state storage devices.
Magnetic VS Solid-State (4 marks) Read More »