Top 10 keyboard shortcuts everyone should know

Using keyboard shortcuts can greatly increase your productivity, reduce repetitive strain, and help keep you focused.Below are our top 10 keyboard shortcuts we recommend everyone memorize and use.

1. Ctrl+C or Ctrl+Insert 

à Copy the highlighted text or selected item

2. Ctrl+V or Shift+Insert

à Paste the text or object that's in the clipboard

3. Ctrl+Z and Ctrl+Y 

à Undo any change. For example, if you cut text, pressing this will undo it. This can also often be pressed multiple times to undo multiple changes. Pressing Ctrl+Y would redo the undo 

4. Start+D 

à Minimize all the program that open on that time 

5. Start+E

à Open My Computer

6. Alt+Tab or Alt+Esc

à Quickly switch between open program moving forward.

àPress Ctrl + Tab to switch between tabs in a program.

à Adding the Shift key to Alt + Tab or Ctrl + Tab will move backwards.

For example, if you are pressing Alt + Tab and pass the program you    want to switch to, press Alt + Shift + Tab to move backwards to that program.

Windows Vista and 7 users can also press the Windows Key + Tab to switch through open programs in a full screenshot of the Window.

7. Ctrl + Back space

àPressing Ctrl + Backspace will delete a full word at a time instead of a single character.

8. Ctrl + Left arrow / Right arrow

àMove the cursor one word at a time instead of one character   at a time. If you wanted to highlight one word at a time you can hold down Ctrl + Shift and then press the left or right arrow key to move one word at a time in that direction while highlighting each word.

9. Ctrl + P

àPrint the page being viewed. For example, the document in Microsoft Word or the web page in your Internet browser.

10. Page Up / Space bar and Page Down

àPressing either the page up or page down key will move that page one page at a time in that direction. When browsing the Internet pressing the space bar will also move the page down one page at a time. If you press Shift and the Space bar the page will go up a page at a time.

Watch this video for how to assign shortcut keys on a PC

 

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What is RAM

RAM is pronounces as ramm, acronym for Random Access Memory, a type of computer memory that can be accessed randomly; mean any byte of memory can be accessed without touching the preceding bytes. RAM is the most common type of memory found in computer and other devices, such as printers

There are two types of RAM

1) DRAM (Dynamic Random Access Memory)

2) SRAM (Static Random Access Memory)

The two types differ in the technology they use to hold data, with DRAM being the more common type. In term of speed SRAM is faster. DRAM needs to be refreshed thousands of times per second while SRAM does not need to be refreshed, which makes it faster than DRAM. DRAM supports access times of about 60 nanoseconds, SRAM can give access times as low as 10 nanoseconds. Despite SRAM being faster, it's not as commonly used as DRAM because it's more expensive. Both types of RAM are volatile, meaning that they can lose their contents when the power is turned off.

In common usage, the term RAM is synonymous with main memory, the memory available to program.

For Example, a computer with 8MB RAM has appromximately 8 million bytes of memory that program can use. In contrast, ROM (read-only memory) refers to special memory sed to store program that boot the computer and peform diagnostics. Most personal computer have small amount of ROM ( a few  thousand bytes) In fact, both types of memory (ROM and RAM) allow random access. To be precise, therefore, RAM should be referred to as read/write RAM and ROM as read-only memory RAM

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