Explain how increasing the width of the address bus would affect the main memory.
The address bus determines the addressable memory, so increasing the address bus would increase the addressable memory to 2x.
1 of 21
Briefly explain what DMA is used for.
It allows data to be transfered straight from the device to the memory without involving the processor.
2 of 21
Describe how SDRAM works.
It is synchronized to the system clock and waits for a clock signal before responding.
3 of 21
Differences between RAM & ROM
RAM is volatile, where as ROM Is not.
4 of 21
Two things that the Kernel is responsible for?
multi-tasking, process control
5 of 21
Explain how co-operative multi-tasking works.
The program releases control at an appropriate stage. One program has control until it's finished, may allow other programs to borrow the processor power.
6 of 21
Describe how the data bus works.
The data bus allows data to travel in both directions along it, between the RAM & the memory data register.
7 of 21
state some common computer virus symptoms.
sound problems. Corrupted data. Screen glitches.
8 of 21
Describe the four different states processes can be in.
Running: is currently running Ready or Waiting: waiting to run Blocked: waiting for response from elsewhere Terminated: process is finished
9 of 21
What causes disk fragmentation, and what effects it can cause.
When files are saved and deleted, fragments become scattered across the disk. This slows down the read and write times.
10 of 21
Which one component of the CPU is responsible for storing the address of the data or instruction currently being accessed? Address Bus? Instruction Register? Memory Address Register? Program counter?
memory address register
11 of 21
Which of the following represents the boot sequence? POST, BIOS, OS Load? BIOS OS LOAD, POST? BIOS, POST, OS LOAD? POST, OS LOAD, BIOS?
POst, BIOS, OS LOAD
12 of 21
What does the term non-volatile storage mean?
All the information is retained even when the power is turned off.
13 of 21
Which component of the central processing unit is responsible for carrying out arithmetic calculations?
Arithmetic and Logic Unit
14 of 21
Another word for the CPU is the ?
Microprocessor
15 of 21
A program that neither replicates or copies itself, but does damage or compromises the security of the computer. Which computer virus is this?
Trojan
16 of 21
Which is fastest? RAM? SRAM? ROM? PRAM?
SRAM
17 of 21
What does solid state mean?
It means that there are no moving parts.
18 of 21
What are the advantages of a layered Operating System?
Greater protection of important programs / files.
19 of 21
What is easiest to learn - CLI or GUI?
GUI - much faster, easier to use and learn. Provides immediate feedback.
20 of 21
What is Application Programming Interface and why is it useful?
is the way for an application to interact with certain system/application/library/etc Makes it easier to build programs by using building blocks.
21 of 21
Other cards in this set
Card 2
Front
Briefly explain what DMA is used for.
Back
It allows data to be transfered straight from the device to the memory without involving the processor.
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