Dear readers, Here we are presenting you some quick
notes on Computer which hopefully will be helpful in the upcoming SBI Clerk
Exam.
- A collection of 8 bits is
called Byte. A bit is
the smallest unit of storage.
- The
first computer architecture was introduced by John Von Neumann.
- A website containing
periodic posts is called Blog.
- Starting up on operating
system is called Booting.
- Restarting a computer that
is already on, is referred to as Warm Booting.
- A program used to browse the
web is called Browser.
- The code for a Web page is
written using Hypertext Markup language (HTML).
- A series of instructions
that tells a computer what to do and how to do it is called a Program.
- The device which is used
with a computer to display or store data is called Peripherals.
- The mechanical, magnetic,
electronic and electrical components that comprises a computer system such
as the Central Processing Unit (CPU), monitor, keyboard, etc. is known as Hardware.
- A set of instructions that
tells the computer about the tasks to be performed and how these tasks are
to performed, is known as Software.
- Executing is the process of carrying
out commands.
- The rectangular area of the
screen that displays a program, data, and or information is a Window.
- Downloading means to receive data to a
local system from a remote system, or to initiate such a data transfer.
- Uploading refers to the sending of
data from a local system to a remote system such as a server or another
client with the intent that the remote system should store a copy of the
data being transferred.
- An email attachment is a computer file sent
along with an email message. One or more files can be attached to any
email message, and be sent along with it to the recipient.
- CC (Carbon Copy) in e – mail indicates those
who are to receive a copy of a message addressed primarily to another. The
list of CCed recipients is visible to all other recipients of the message.
- An additional BCC (Blind Carbon Copy) field is available for
hidden notification; recipients listed in the BCC field receive a copy of
the message, but are not shown on any other recipient's copy (including
other BCC recipients).
- Disk drive is the part of the computer
helps to store information.
- Arithmetic operations include addition,
subtraction, multiplication, and division.
- The most important or
powerful computer in a typical network is Network Server.
- The primary purpose of software is to turn data into
information.
- A collection of related
files is called Record.
- Storage that retains its
data after the power is turned off is referred to as Non-Volatile Storage. ROM is an example of this
type of storage.
- Virtual memory is memory on the hard disk
that the CPU uses as an extended RAM.
- Computers use the Binary Number System to store data and perform
calculations.
- When sending an e-mail, the Subject line describe the contents of the
message.
- The Operating System tells the computer how to
use its components.
- During the cutting and
pasting of an item, the part which is cut, is temporarily stored in Clipboard.
- The blinking symbol on the
computer screen is called the Cursor.
- Magnetic tape is not practical for
applications where data must be quickly recalled because tape is a
sequential access medium.
- Information travels between
components on the motherboard through Buses.
- A Website Address is a unique name that
identifies a specific web site on the web.
- Alt, Ctrl & Shift keys
in a keyboard are known as: Modifier keys.
- Caps lock, Num lock &
Scroll lock in a keyboard are known as: Toggle keys.
- F1 to F12 keys in a keyboard
are known as: Function keys.
- A person who uses his or her
expertise to gain access to other people’s computers to get information
illegally or do damage is a Hacker.
- A Computer Virus is a malware program that,
when executed, replicates by inserting copies of itself (possibly
modified) into other computer programs, data files, or the boot sector of
the hard drive; when this replication succeeds, the affected areas are
then said to be "infected".
- Antivirus Software is used to scan the hard
disk to remove the virus from them.
- The assembly language
program is translated into machine code by a separate program known as an Assembler.
- A Backup, or the process of backing
up, refers to the copying and archiving of computer data so it may be used
to restore the original after a data loss event. It contains a copy of
every program data and system file on a computer.
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