File Management: This is the part of the OS which searches and stores files. The main functions are:
The Command Language Interpreter (CLI) allows the user to give instructions to the computer. The CLI may be command driven or menu-driven. The CLI’s job is to interpret or make sense of commands entered by the user and do its best to carry them out. If a mistake is made, then the CLI should display an error message.
A Bootstrap loader is an important piece of software which is held in ROM. As soon as you power up your computer system it starts to run. It looks for the operating system ( usually held on disk) and begins to load it into main memory. 🙂
I’m not sure if you caught this during the week, but I thought it would serve as a good discussion point on whether or not it is a Good display of Bitmap or Vector graphics.
What do you think?
OK so we are jumping the gun on this a little but I thought it merited a little post. I am writing this back in January (the day before your prelim) and I am guessing at where we will be today.
Screen resolutions for television have traditionally been described in terms of the vertical pixels, 576i, 720i, 720p, 1080p but the new standards are now describing them in the horizontal. So a 4K UHD (Ultra High Definition) screen has in the order of 4096 horizontal pixels this is twice the resolution of 1080p HDTV (High Definition TV).
Calculate the sizes of the following uncompressed graphic files.
| Colour Depth bits | DPI | Length (Inches) | Height (Inches) |
| 8 | 600 | 6 | 8 |
| 8 | 300 | 4 | 3 |
| 8 | 75 | 1 | 1 |
| 8 | 600 | 5 | 4 |
| 8 | 300 | 8 | 9 |
| 16 | 600 | 6 | 8 |
| 16 | 300 | 4 | 3 |
| 16 | 75 | 1 | 1 |
| 16 | 600 | 5 | 4 |
| 16 | 300 | 8 | 9 |
| 24 | 600 | 6 | 8 |
| 24 | 300 | 4 | 3 |
| 24 | 75 | 1 | 1 |
| 24 | 600 | 5 | 4 |
| 24 | 300 | 8 | 9 |
I have now got more or less all the access I need for youtube. This is now allowing me to create playlists and add new videos. I will check how I can add modification of playlists to twitter so that you can see what I am adding, I will also try and find an RSS updater so you can view the pages from here as well.
Here are the second set of slides I used this week.
Like I said in class virus can be classified and their delivery and payload can be categorised. However, the field of viruses is constantly evolving and has changed from a “Hobbyist” pursuit to a commercial enterprise.
We will finish this lesson next week.
OK so it wasn’t bad as a first attempt. Next time I will be adding pupils names to the sheets to make you all more accountable. A fair bit of copy and paste going on, this will not help your studying, as the chances are you didn’t even read what you pasted. Look at your notes and see if you cant summarise in the future.
Today we looked at operating systems, I made quite a comprehensive post on this last year. The key item from today was not the fact that I described BBC Master computers as the iPad of their day, it is the functions of a single user OS
Create a mnemonic to help you remember this. I heard a great one the other day for the parts of a processor in Int 2. “C U, Ah Luv U, Right” (Control Unit, Arithmetic and Logic Unit, Registers). Who can come up with the best for OS functions don’t be shy to post your answers, but keep it clean.
Glow Blogs uses cookies to enhance your experience on our service. By using this service or closing this message you consent to our use of those cookies. Please read our Cookie Policy.