computerchacha.com

Next month HP is going to update its display offer and release the Elite L2201x. Creating a picture perfect view in any environment, this is HP’s thinnest monitor to date – perfect for notebook users interested in a contemporary, space-saving second monitor. Measuring just 0.4 inches thick, this ultra-thin 21.5-inch LED-back light monitor provides 1920 x 1080 Full HD resolution, 5,000:1 contrast ratio and 250 cd/m2 brightness, and features a DisplayPort connector. … »

HP has released a new uber-thin monitor called HP x2301. With a profile of only 9.8mm, the monitor looks impressively thin on a table. The company promises a mid-tier screen with a modest 72 percent color range but a 3ms gray-to-gray pixel response time and a very high 8,000,000:1 dynamic contrast ratio through LED backlighting. The resolution of the HP x2301 is 1980×1080 (1080p), and the image quality looked good. The HP x2301 display will be available on June 10 … »

See more…

computerchacha.com

A computer is a programmable machine designed to automatically carry out a sequence of arithmetic or logical operations. The particular sequence of operations can be changed readily, allowing the computer to solve more than one kind of problem. An important class of computer operations on some computing platforms is the accepting of input from human operators and the output of results formatted for human consumption. The interface between the computer and the human operator is known as the user interface.

Conventionally a computer consists of some form of memory, at least one element that carries out arithmetic and logic operations, and a sequencing and control unit that can change the order of operations based on the information that is stored. Peripheral devices allow information to be entered from an external source, and allow the results of operations to be sent out.

A computer’s processing unit executes series of instructions that make it read, manipulate and then store data. Conditional instructions change the sequence of instructions as a function of the current state of the machine or its environment.

The first electronic digital computers were developed between 1940 and 1945 in the United Kingdom and United States. Originally, they were the size of a large room, consuming as much power as several hundred modern personal computers (PCs).^[1] In this era mechanical analog computers were used for military applications.

See more…