Computer GK: One Liner Questions
>Founder of WWW – Tim Berners-Le
>Founder of Bluetooth – Ericsson
>Founder of Yahoo – Jurry Yang & David Filo
>founder of microsoft- Paul Allen, Bill Gates
>Father of Java - James Gosling
*>First Commercial Computer – UNIVAC
>Input Devices- BCR, OMR, OCR, Light Pen, Joysticks
>Output Device- Plotter
ROM (Read Only Memory)- we can only read but cannot write on it.
MROM (Masked ROM)
PROM (Programmable ROM)
EPROM (Erasable and Programmable ROM)
EEPROM (Electrically Erasable and Programmable ROM)
Bit - 0,1
1 Nibble - 4 Bits
1 Byte - 8 Bits
1 KB (Kilo Byte) - 1024 Bytes
Operating System- it enables computer hardware to communicate and operate with the computer software.
MAC address- Media Access Control
>MAC address is usually stored in ROM
Bandwidth- Every line has an upper limit and a lower limit on the frequency of signals it can carry.
Bookmark -Ctrl + D
Bounce -A description of what occurs when an e-mail message returns back to the sender as undeliverable.
Buffer- a temporary storage in memory that stores information while processing other information.
1) Binary Number System- 0 and 1
2) Octal number system- 8 digits from 0 to 7
3) Decimal number system- 10 digits from 0 to 9
*4) Hexadecimal number system- 16 alphanumeric values from 0 to 9 and A to F
>>M.S.Word/ Excel Shortcuts with CTRL from A-Z<<
CTRL + A = Select text
CTRL + B = Bold text
CTRL + C = Copy text
CTRL + E = Centre text
CTRL + F = Find a phrase
CTRL + L = Left align text
CTRL + R = Right align text
CTRL + V = Paste text
CTRL + X = Cut text
CTRL + Y = Redo an action previously undone
CTRL + Z = Undo a previous action
>>M.S Excel shortcut keys<<
F2 = edit the selected cell
F7 = spell check of the selected text
F11= Create the chart
CTRL+SHIFT+ ;= enter the current time
CTRL+; = Enter the current date
CTRL+F9= Minimize the current window
Which device is used for dividing a network into segments- Switch
Which area in an Excel window allows entering values and formulas- Formula Bar
Fax machines and imaging systems are examples of- Scanning devices.
*The particular field of a record that uniquely identifies each record is called the key field.
Booting is the process when the computer is turned on and the operating system is loading.
*Numbers in table columns are usually- Right Alignment.
*Character in table columns are usually- Left Alignment.
To combine two or more cells into a single cell is called – Merging
*The first computers were programmed using- : Machine language.
When communication in both directions and both the devices can simultaneously transmit the data known as- Full duplex
*Collaborative software: Groupware, such as Lotus Notes or Microsoft Exchange.
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Computer GK: One Liner Questions (CCC, Railway JE, Bank) Part 2 Reviewed by Admin on June 28, 2019 Rating: