Flashcards
CS Flash Cards
Cards in this deck (8)
- 1—Central Processing Unit
that carries out the instructions of a computer program by performing the basic arithmetic, logic, controlling, and input/output operations specified by the instructions. - 2—Solid State Drive
SSDs are typically more resistant to physical shock, run silently, and have quicker access time and lower latency and no moving parts.
- 3—Graphics Processing Unit
This accelerates the processing of images in a frame buffer intended for output to a display device. GPUs are used in embedded systems, mobile phones, personal computers, workstations, and game consoles.
- 4—Random Access Memory
A random-access memory device allows data items to be read or written in almost the same amount of time this is classed as primary storage, this is also volatile memory (so it gets wiped after the PC turns off)
- 5—ROM
stands for Read Only Memory. The memory from which we can only read but cannot write on it. This type of memory is non-volatile.
- 6—Arithmetic Logic Unit
Performs two sorts of operations on data: < Less than
Arithmetic operations > Greater than
Addition, subtraction, multiplication, division >=Greater than or equal to
Logical operations <=Less than or equal to
Comparing one data item to another: is it smaller than, greater than or equal to? != Not equal to
==Equal to
- 7—Cache
Cache is a small amount of very fast expensive memory
on the CPU. When the instruction is fetched from the main
Memory it is copied into cache. If needed again, it is quick to
Access from cache than main memory.
When cache fills up unused instructions data held is replaced by new instructions.
Cache is not used as “Normal memory” due to cost and only holding small amounts of memory, compared to the main memory.
- 8—Optical Storage
Includes CD’s, DVD, Bluray.
Data is stored in pits and lands that is burnt into a spiral that starts from the center and outwards.
A laser beam reads the data from the pits and lands and the reflection is measured, 01’s are returned (reflection/no-reflection).
Information
- Description
- Very easy and short flash cards to memorize the simple parts of a PC
- Created by
- Awais Butt
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