The next Scholar homework session is on Wednesday 11th at 7.30pm
This session covers the Networking topic for the old higher, this is not our optional unit but might help if you feel you need help with the networking component of the computer systems unit.
Question – Why did I save this graphic as a PNG?
This homework session covers the option networking unit. This is not the optional unit we are studying this year. However, you might find it useful for a recap of the networking topic in Computer Systems.
Again this optional.
Ian King will be running a Scholar homework session this Wednesday 28th Jan at 7.30 pm til around 8.15.
The topic is Storing numeric data (binary, two’s complement and floating point notation)
You can access the session, which will last about an hour at
Q1 A peripheral device captures colour images and saves them to memory.
a) Describe how the colour is represented using 24 bits (1)
b) The image is saved with a resolution of 600 dpi. How many pixels are required to save an image of 6” x 4”. Give your answer in MB and show your working. (2)
Q2 Explain how a buffer is used with a peripheral. (2)
Q3 Explain the concept of spooling illustrating your answer with an example. (2)
Q4 State the hardware required in terms of peripherals to set up a computer system to produce a catalogue for a garden centre. The finished catalogue will be taken on electronic media to a printers. (2)
Q5 Justify the choice of two of these devices in terms of resolution, capacity, speed, cost and compatibility. (4)
Q6 Describe the features, uses and advantages of a solid state device such as a USB flash drive. (2)
Q7 a) What is the purpose of an interface? (1)
b) State the factors that have to be resolved by an interface. (2)
Q8 Describe the difference between parallel and serial interfaces (2)
Total marks 20
Q1 What factors can influence the MIP rate of measuring performance? 2
Q2 Explain what is meant by the cycle time with reference to the clock speed. 2
Q3 Explain why two computers rated at the same clock speed may not have an equivalent performance.2
Q4 Explain what is meant by a benchmark test in measuring a computer’s performance and give an example of one such benchmark. 2
Q5 Explain the effect of the width of the data bus on a computer’s performance. 2
Q6 Why is an interface needed to connect peripherals to the system bus? 2
Q7 Describe the standard functions of an interface. 2
Q8 Explain the difference between serial and parallel transmission. 2
Q9 Explain why the increase in the width of the data bus can improve system performance. 2
Q10 Explain why the increase in the width of the address bus can improve system performance. 2
Total Marks 20
From the 2008 past paper Q11, 15, 17
Next weeks starter questions will be from the 2010 paper.
This is more aimed at the Networking optional unit. However, it might be of use though as it will cover the Networking section of the Computer Systems unit.
Presented by: Ian King, SCHOLAR Online Tutor for Computing.
When: Wednesday 5 March 7.30 – 8.15pm
Theme: Higher Computing – Networking: Protocols, IP addresses and the OSI model
There will be an opportunity for students to participate in a Q&A session at the end of the presentation.
I have updated this and I will give you a paper copy on Tuesday. Use it with traffic light stickers/high lighters, to record your progress. The Section 2 questions have not been broken down in part or the spreadsheet would have gotten out of hand. However, feel free to create one yourself and post me a copy 🙂
I have also posted the sample question paper and the Section 1, 2 & 3 PDFs in the past papers page (at top of page). There are no marking schemes on the blog so you will need to look elsewhere for the answers.